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Submandibular duct stone CT

Sialolithiasis ( salivary gland stone disease ) is the single commonest disorder of the salivary glands. Of this, the vast majority (more than 80%) occurs in the submandibular gland. Limited CT is excellent at identifying salivary duct stones and in the acute presentation may identify gland enlargement and inflammation in keeping with sialadenitis Epidemiology. Sialolithiasis is the most common disease of salivary glands, accounting for approximately 50% of all major salivary gland pathology 5.The submandibular salivary gland is most commonly affected (80-90% of cases) with almost all the remaining cases located in the parotid duct 1,2,5,6.This is primarily believed to be due to the increased viscosity of the secretions from the. The duct was subsequently cannulated and the stone removed fluoroscopically. Case courtesy of Bob Cook, MD. Western Memorial Regional Hospital Corner Brook, Newfoundland. The duct was subsequently cannulated and the stone removed fluoroscopically. Submandibular duct stone. Case contributed by Assoc Prof Frank Gaillard. CT Scan. CT images have higher sensitivity than plain film radiography for detecting salivary stones using a slice thickness of 0.2- 0.5 mm. 6. CBCT Scan. CBCT can be used, and it has the advantages of reduced superimpositions and distortions of the panoramic image and reduced radiation exposure over medical CT

  1. submandibular gland. Among the patients with carcinoma of the base of the tongue the submandibular duct was seen on both sides in one of the 12 patients. In 2 patients the duct was only visualized on the side of the tumor. All 4 patients with a stone in the submandibular duct had a visible duct on the side of involvement. Fig. 1
  2. ing a patient, or see one by using imaging technologies such as a CT scan or ultrasound. Conservative treatments bring temporary.
  3. Stone in Wharton's Duct. Most common disease of salivary glands. Twice as common in males as females. 80-95% occur in submandibular gland or duct. Stones are most common cause of acute and chronic infection of salivary glands. 80% of submandibular stones are opaque; 60% of parotid are opaque. Consist of mainly calcium phosphate
  4. The submandibular duct (also known as Wharton's duct) allows the passage of saliva from the submandibular gland to the sublingual papilla located anteriorly.. The duct extends anteriorly from the submandibular gland superior to the lingual nerve and submandibular ganglion curving over the posterior edge of the mylohyoid muscle into the sublingual space
  5. Salivary duct stones occur most often in the ducts connected to your submandibular glands. These are the glands located on both sides of your jaw in the back of your mouth
  6. Acute sialadenitis is most commonly caused by an ascending bacterial infection, with Staphylococcus aureus or Streptococcus viridans being the most common organisms 2,8,9. Sialolithiasis is often present (causing obstructive sialadenitis) and stones are found in ~85% of submandibular ducts and ~15% of parotid ducts 1,7,9
  7. CT OF THE SUBMANDIBULAR DUCT 415 Fig. 1. Schematic drawing of normal CT anatomy of the floor of the mouth and the base of the tongue.Arrows from inserts I b and I c indicate coronal view levels in axial view 1 a.Arrowheads indicate level of axial section

Submandibular sialolithiasis Radiology Case

From the case: Right submandibular gland duct stone. CT. Axial non-contrast Dilated right submandibular duct (Wharton's duct) with a large o0val shaped radiodense stone measuring about 1.8x1x1.6cm along its maximum AP, TS and cranio-caudal dimensions seen impacted in its distal end. Bilateral subcentimetric submandibular lymph nodes are seen.. The contrast-enhanced computed tomography (CT) study shows this to be due to sialolithiasis and sialoadenitis. A: There is a stone impacted in the mid submandibular duct and a second stone impacted at the position where the duct crosses over the posterior edge of the mylohyoid muscle (arrow in B)

Sialolithiasis Radiology Reference Article Radiopaedia

The CT Scan below shows a stone in the left Parotid salivary gland duct (Stensen's Duct). The parotid gland is swollen and a large stone can be seen. (Mouse-Out to see the parotid stone, Mouse-Over picture to see additional CT Scan of swollen parotid gland.) The submandibular salivary gland is the most common salivary gland to form stones Computed tomography (CT) is useful for distinguishing between sublingual gland and submandibular gland sialolithiasis. In this paper, we report the case of a 50-year-old man with left sublingual gland sialolithiasis that was treated with excision of the left sublingual gland and the stone via a transoral approach, 6 weeks after the infection.

Right submandibular duct stone (kindly refer to the arrow) which points to the site of Warton's duct that passes between myelohyoid and hypoglossus to open in submandibular papilla. Sialolithiasis (stones within salivary glands or their ducts). FIGURE 182.2. Two patients with potential manifestations of lymphoma. A, B: Contrast-enhanced computed tomography (CT) in Patient 1 presenting with a left submandibular region mass shown to be due to primary submandibular gland lymphoma. This was the only site of the patient's disease and a highly unusual circumstance Chronic obstructive salivary gland disease can be caused by salivary stones, mucus plugs, duct stenosis, foreign bodies, or anatomical variation in the ductal system of salivary glands, and it can lead to the retention of saliva in the duct, discomfort, or infection, if not treated properly [1, 2].In particular, sialolithiasis (also termed salivary calculi or salivary stones) is a condition in.

Sialolithiasis | Image | Radiopaedia

How to Diagnose and Remove Salivary Stones (Sialoliths

I recently had a CT scan done that shows the submandibular gland on the right side is larger than the one on the left. I originally went to a dr because I had pain in my right ear and right side of my jaw. They thought I had a swollen lymph node. The ENT Dr does not want to do a biopsy, because sometimes they give false negatives Pictures of submandibular duct stones and Ludwig's angina. LUDWIG'S ANGINA is an inflammation of the submandibular space, usually starting in the submaxillary space and spreading to the sublingual space via the fascial planes, not the lymphatics. As the submandibular space is expanded by cellulitis or abscess formation, the floor of the mouth becomes indurated and the tongue is forced upward. Submandibular duct stone ct scan ur medicine imaging sciences radiology submandibular gland with recent advances in mr sialography submandibular sialolith consultant360. Learning Radiology Sialolithiasis Stone In Wharton S Duct. Giant Sialolith Of The Submandibular Salivary Gland Sciencedirect The chemicals in the saliva can sometimes crystalise to form stones. These stones can block the salivary gland and ducts. Why some people have stones in their salivary gland or ducts is still unknown. Majority of stones occur in the submandibular gland. When stone blocks up the salivary duct system, saliva backs up into the gland

Submandibular gland stone removal sialendoscopy case example. 80-90% of stones occur in the submandibular gland, 10-20% occur in the parotid gland. 25% of patients with one stone with have multiple stones; bilaterlal stones are very rare, however. 80% of submandibular and 60% of parotid stones are visible on plain radiographic imaging Salivary gland stones affect ducts to the submandibular gland in nearly 80% of cases, the parotid gland in 14%, and the sublingual gland in 6%. Stones in submandibular glands are large and usually occur as one stone when compared with stones in the parotid gland. What Causes Salivary Gland Stones? The cause is unknown Anterior facial vein and submandibular gland together: predicting the histology of submandibular masses with CT or MR imaging. Radiology 1998; 208:441-446. Link, Google Scholar; 2 Kane WJ, McCaffrey TV, Olsen KD, Lewis JE. Primary parotid malignancies: a clinical and pathologic review. Arch Otolaryngol Head Neck Surg 1991; 117:307-315

Computed tomography (CT) with contrast enhancement demonstrated a mild, diffuse enlargement of the right submandibular gland, which had a dilated duct containing a stone that extended from the right submandibular gland into the oral cavity ().A provisional diagnosis was made of chronic sialadenitis of the right submandibular gland, with the possibility of a calculus in the accessory duct Swollen submandibular glands are usually caused by tiny stones blocking the ducts that channel saliva into the mouth. According to the Merck Manual, these stones can develop from the salts in saliva, especially if a person is dehydrated. When a stone blocks a salivary gland, a condition known as sialolithiasis, an individual may experience. GSGC of the submandibular or parotid glands is a disease that affects the middle-aged male patient. An occlusal film is a suitable imaging modality for stones, but estimation of size is limited to stones in the anterior duct portion. Panoramic radiograph and CT scan were comparable in precise preope In cases of submandibular stones located close to Wharton papillae, a marsupialization (sialodochoplasty) is performed and the stone removed. 46,47 Interestingly, although sialolithiasis is the most frequent reason for submandibular gland resection, 48 stones are often left in the Wharton duct remnant. 6 In cases of posterior-located.

Computed Tomography of the Submandibular Salivary Gland

  1. 2.1.2 Computerized Tomography (CT) and Magnetic Resonance Imaging (MRI) Stones within the salivary duct or salivary gland can be visualized by CT scan. Very small stones may not be seen as in plain radiography as the spacial resolution is not very good. Larger stones and anatomy of ducts can be assessed by MRI 2. Indications of CT or MRI are as.
  2. CHAPTER 57 Sialolithiasis (Salivary Duct Stones) Presentation Patients of any age may develop salivary duct stones, although they are more common in men of age 30 to 60 years and less common in children. Most salivary stones occur in the Wharton duct from the submandibular gland. The patient is alarmed by the rapid swelling tha
  3. space also contains the sublingual gland and duct, a portion of the hyoglossus muscle, the lingual artery and vein, lingual nerve (branch of CN V), branches of the glossopharyngeal (CN IX) and hypoglossal (CN XII) nerves, as well as the deep portion of the submandibular gland and duct [2]. The submandibular space is bounded anteriorly and lat

Salivary Stones Johns Hopkins Medicin

An incision was made through the oral mucosa over the area where stone was palpable, lateral to but along the course of the left submandibular duct. (Fig. 3) The duct was carefully dissected to expose the large calculus. The calculus was separated from the soft tissue by blunt dissection and carefully removed from the submandibular duct Unilateral Submandibular Gland Atrophy and Sialolithiasis Diagnosed on 99mTc-MIBI SPECT/CT in a Patient With Primary Hyperparathyroidism Clin Nucl Med . 2017 Dec;42(12):939-940. doi: 10.1097/RLU.0000000000001863 While one stone was stuck in the duct, the other was fully embedded in my submandibular gland, the main gland that produces saliva. The only way to remove the stones involved removing the gland.

Learning Radiology - Sialolithiasis, Stone in Wharton's Duc

  1. Sialolithiasis is a benign (non-malignant) condition involving the formation of stones within the ducts of the major salivary glands of the head and neck. These include the parotid glands, submandibular glands, and sublingual glands. Sialolithiasis is the most common cause of salivary gland swelling with a reported incidence of 1 in 10000 to 1.
  2. Salivary Stone Library: These are cases of Sialendoscopy procedures performed on patients with salivary gland stones of varying sizes and quantities at the Osborne Head & Neck Institute. The CT scan (right) highlights the salivary gland, duct and stones. The stones are displayed (left) after removal from the patient with ruler to demonstrate size
  3. Sialolithiasis: presence of stones in a salivary gland and/or salivary duct. Sialadenitis: inflammation of a salivary gland which may result from obstruction or infection. Most cases occur between the ages of 30 and 60. Sialolithiasis is more common in men than women and rare in children, whereas sialadenitis affects both genders equally and.
  4. utes before gradually subsiding, only to enlarge again at the next meal

A salivary stone or other blockage of the salivary gland duct can contribute to an acute infection. Chronic inflammation of a salivary gland can cause it to stop functioning. Although the condition can affect anyone, including infants, those most at risk for salivary gland infection are elderly and chronically ill people (A) The CT image reveals a normal right submandibular gland and a gland with SS on the left. (B) ROIs were manually placed by tracing the contours of the bilateral submandibular glands on an axial slice that demonstrated the maximal area of each submandibular gland. The submandibular glands were segmented, excluding salivary stones Only CT dental scan identified the radiological image as a salivary stone. Sialolithiasis should always be considered in the diagnostic iter of painful submandibular swelling. A careful evaluation of recurrence and characteristics of signs and symptoms associated to the swelling can help in making the correct diagnosis and planning a proper.

Salivary duct stones vary in size. Salivary duct stones affect about 1 out of 100 adults, twice more men than women, and many people with the condition have multiple stones. The size of the stone can vary from less than 1mm to a few centimeters in diameter. About 9 in 10 stones are, however, less than 10mm in size Introduction Most patients presenting with obstructive symptoms of the submandibular gland (SMG) are afflicted with salivary stones rather than stenosis, and salivary gland stones are a more frequent cause of SMG obstruction than of parotid obstruction, in a ratio of 4 : 1. Traditionally, most stones in the proximal SMG and duct were treated with gland excision The submandibular glands are a pair of glands situated on the floor of the mouth, below the lower jaw. They are one of the three pairs of glands that produce saliva. Submandibular glands can become swollen when small stones block the ducts that supply saliva to the mouth. Sometimes this can lead to an infection

Submandibular duct Radiology Reference Article

  1. ation, and laboratory tests. If your doctor suspects an obstruction of the major salivary glands, it may be necessary to anesthetize the opening of the salivary ducts in the mouth, and probe and dilate the duct to help an obstructive stone pass
  2. The submandibular duct is a tube, which runs from under the front of the tongue to the submandibular gland. The larger parotid glands make spit (saliva) that is thinner than that produced by the submandibular glands. This means that stones less commonly form in parotid glands. It is rare for a stone to form in a sublingual gland
  3. unenhanced CT images for evaluation of sialolithiasis. MATERIALS AND METHODS. All dual-energy CT studies of the neck performed during the preceding 5 years were reviewed for submandibular gland calculi. Only patients who had unenhanced CT and contrast-enhanced CT performed as part of the same evalua-tion were included in this study
  4. ing the submandibular gland and its duct. Salivary imaging . Imaging modalities for inflammatory con-ditions of glands are plain X-rays (Figures 7a, b), sialography (Figure 8), ultrasound (Figure 9), and computed tomography (Figure 10). Plain X-rays. have less value with parotid stones because of the higher percentage (60

Salivary Duct Stones: Causes, Symptoms, and Diagnosi

Sialodochoplasty complex with duct scarring. Salivary Gland Preservation Surgery 13 mm Parotid Stone. Dense Submandibular Stone Unable to Adequately Fragment with Laser. Complication from open parotid ductoplasty for stone with parotid cutaneous fistula. Parotid Duct Stricture Dilation with Salivary Balloon and Ultrasound Guidance Stones in the hilum of the submandibular gland necessitate excision of the gland if associated with chronic pain and swelling. Parotid sialoliths are managed in a similar fashion. Figure legend: Salivary glands and their ducts. Dissection showing the sublingual, submandibular (submaxillary), and parotid glands Sialographic and sonographic diagnosis of diseases of the salivary gland. Radiologe 1987; 27:255-261[German]. Medline, Google Scholar; 5 Rinast E, Gmelin E, Hollands-Thorn B. Digital subtraction sialography, conventional sialography, high-resolution ultrasonography and computed tomography in the diagnosis of salivary gland diseases Chronic sialadenitis due to the stone inside the accessory duct of submandibular gland. Binar M, Gokgoz MC, Aydin U, Yavan I, Karahatay S Surg Radiol Anat 2017 Oct;39(10):1165-1168. Epub 2017 Mar 23 doi: 10.1007/s00276-017-1850-y

Salivary Stones. Epidemiology (Bailey) 80% of salivary stones occur in the SubMandibular Gland (SMG) 90% of SMG stones are radiopaque; 90% of parotid gland stones are radiolucent. Risks (Bailey) Nidus of material allowing precipitation of salts coupled with salivery stasis. SMG has more alkaline saliva and higher concentrations of calcium and. Conventional CT imaging is limited because thick slices can occult a stone, often making this method insufficient for the precise localization of a sialolith within the duct system. 3 However, CBCT imaging can provide thinner cross-sections than CT imaging and eliminate the possibility of occulting small stones. Unfortunately, this method is. Sialolithiasis is the most common benign disorder of the salivary glands. 1 Eighty percent to 90% of calculi are found in the submandibular system, due to the more viscous, alkaline saliva and upward drainage of the duct promoting stasis. 13,14 Parotid and sublingual calculi account for only 5%-10% and 0%-5% of cases, respectively. 15 In. A small incision for removal of a solitary stone in the distal aspect of Wharton's duct was performed in 15 patients, with excellent clinical results. Another 14 patients with multiple salivary gland stones, diagnosed on CT reconstructions, did not improve following this procedure and needed further surgery; clinical improvement occurred.

Sialadenitis Radiology Reference Article Radiopaedia

CT appearances of normal and obstructed submandibular duc

  1. or salivary glands. Forty per cent of parotid and 20% of submandibular.
  2. 80% of salivary gland stones occur in the submandibular glands, 2% occur in the sublingual glands, the rest take place in the parotid glands. The reasons that submandibular gland stones are so prevalent are that the saliva is more alkaline, thicker, and contains a higher amount of calcium phosphatesAdditionally, the duct is long and twisted, and the gland lies below the duct, making stasis.
  3. FIG. 23.2 Normal anatomy of the submandibular and sublingual glands. Contrast-enhanced CT (A) and T1-weighted (B) and T2-weighted fat suppressed (C) MR images of the upper neck at the level of the submandibular (white asterisk) and sublingual (yellow asterisk) glands.Note the deep lobe of the submandibular gland (dashed white arrow) courses around the posterior free margin of the mylohyoid.

This time two stones were diagnosed in the left salivary ducts, via CT scan. The second ENT recommended complete removal of the left salivary glnad. The surgery would be from the outside of my throat and would bring a 5% chance of nerve damage to the left side of my face Parotid duct obstruction is when part of your parotid duct becomes blocked. Saliva then can't flow normally from the parotid gland into your mouth. Salivary gland stones are the most common cause of this condition. Symptoms can include pain and swelling in the area around the back of your jaw. The condition often goes away on its own with. Submandibular stones account for 80 to 92 percent of all sialolithiasis, while parotid stones account for most of the remaining cases at 6 to 20 percent. The sublingual and minor glands have relatively low risk for development of a stone Computed Tomography CT scan is especially useful for evaluating inflammatory conditions of the submandibular and parotid glands. Sialoliths are readily identified on CT imaging. The standard images should be 1 mm cuts with three-dimensional reconstruction. In this way the glands and ducts can be visualized in all planes, and stones are les

Imaging of the sublingual and submandibular spaces

Calculi or strictures produce sialectasis (dilation of salivary duct) with pain/swelling with eating. May require parotidectomy if symptomatic. Sialolithiasis: Caused by salivary stones, usually the submandibular gland because of longer length duct and salivary content. Pain and swelling worse at mealtime It was concluded that, prior to removal of duct stones, CT examination should be undertaken to ensure that there is not generalized stone formation. Generalized inflammatory enlargement was seen without calcified stones in a further eight cases of submandibular gland pathology. Fig 7. Lymphoma replacing the right parotid gland Sialadenitis is bacterial infection of a salivary gland, usually due to an obstructing stone or gland hyposecretion. Symptoms are swelling, pain, redness, and tenderness. Diagnosis is clinical. CT, ultrasonography, and MRI may help identify the cause. Treatment is with antibiotics Cone beam CT scan revealed a large sialolith in the left submandibular gland duct that measured 46mm (L) x 7mm (W) x 12mm (H), which likely involved the primary-secondary duct system within the gland parenchyma. Based on the clinical and radiological examination, a diagnosis of giant sialolith of left submandibular duct and gland was rendered

CT of the Neck: Image Analysis and Reporting in the

• Submandibular gland is assessed in lateral oblique view with patient finger in mouth, depressing the tongue and pushing the submandibular gland into the sight beneath mandible. • Stone in anterior part of duct are best demonstrated by placing occlusal film in mouth and using submentovertical projection. 16. Mandibular occlusal view 17 Stones are readily visualized as high attenuating masses within salivary ducts or glands. Other associated findings include enlargement of the gland parenchyma and, in cases of sialoadenitis, fat stranding and abscess formation can be visualized on noncontrast CT because of the high fat content, particularly in the parotid gland (Figure 6-18). 7 Salivary duct stones are deposits of minerals in the ducts that drain the salivary glands. Salivary duct stones are a type of salivary gland disorder. Salivary stones most often affect the submandibular glands. They can also affect the parotid glands. Symptoms. MRI scan or CT scan of the face are used to confirm the diagnosis. Treatment. Sialolithiasis is one of the most frequent salivary gland disorders, with the submandibular gland being the most affected gland (80-87%). 1-4. Salivary gland stones, or sialoliths, are calcified structures in the salivary glands or their ducts, resulting in the obstruction of salivary secretion and retention of saliva. 5,6. This is usuall Salivary gland stones are calcifications in the salivary gland or in the tubes (ducts) that drain the salivary glands. They create a blockage that obstructs the flow of saliva. Salivary gland stones are the most common cause of inflammatory salivary gland disease. Three out of four salivary stones occur in the submandibular gland

Sialolithiasis - Causes, Pictures, Symptoms, Treatment

Submandibular gland excision is a major surgical procedure to remove the submandibular gland (Area C) which is one of 2 major salivary glands found in the human body, the other being the parotid gland (Area B).The most common reason to remove this gland is due to recurrent infections and/or blockages causing swelling as well as an abnormal mass contained within If you have salivary stones, sometimes these stones are amenable to direct excision through the mouth, but not in all cases. How does a problem with the submandibular gland present? Sometimes people present with a mass or lump in the neck. Usually imaging such as CT scan will localize that the mass is involving the submandibular gland Most salivary gland tumors are benign, and salivary gland cancers are uncommon malignancies that represent less than 5% of head and neck cancers. They are a heterogeneous group of tumors with varied clinical behavior. About 60% of malignant salivary gland tumors arise in the bilateral parotid glands, about 30% occur in the submandibular glands.

Diagnosis of Salivary Gland Stone

Stone retrieved from the submandibular duct. A longstanding distal submandibular duct calculi (X) in a patient presenting with episodic left submandibular swelling during meals. Watch video of distal submandibular duct calculi @ YouTube CT-scan view showing a significant size radiopaque calculi along left submandibular duct anatomy This recommendation is based on expert opinion in a review article, which states that additional investigation such as salivary gland ultrasound or CT may show a stone or dilated duct, and eventual surgical removal of the stone or salivary gland excision may be needed, depending on the location of the stone [Wilson, 2014]. This recommendation. A computed tomographic (CT) scan corroborated swelling of the left submandibular gland, but no stones were appreciated. In-office diagnostic ultrasound showed a submandibular gland of normal size, echotexture, and vascular pattern, lacking evidence of ductal dilation, stenosis, or calculus Salivary Gland Stone: Sialolith. One of the most common salivary gland stones is the submandibular gland's duct sialolith. This is a case study of a recent patient who came in with such a stone. This 24 year old white female presented to Cape Dental Care with an ulcer behind her front lower teeth. She was 2 month postpartum and went to her MD.

Sialolithiasis Iowa Head and Neck Protocol

Submandibular sialolithiasis with CT and scintigraphy: CT values and salivary gland excretion in the submandibular glands. Transoral removal of proximal submandibular stone: report of 5 cases and review of the literature. Value of Ultrasonography in the Diagnosis of Sialolithiasis of Submandibular Glan COMPUTED TOMOGRAPHY : • Unenhanced CT is the superior method in sialolithiasis detection , especially in case of painful salivary glands and suspicion of a few, very tiny calculi • CT detects calcifications with high sensitivity, but its disadvantage is a poor visualisation of salivary ducts and lesions within them, as well as patient's. I had chronic swollen submandibular swelling for 2 years, the size of a golf ball and that's just what you saw from the outside. Subequently stones were found in the duct, 2 cm worth of them. They are still in the duct. The pain caused from the swelling was due to the stones which were trapped in the gland trying to come out through the duct. sialadenitis. primarily affect the parotid gland. However, stones in the salivary ducts (. sialolithiasis. ) mainly form in the submandibular gland because of its ascending salivary duct. Salivary gland tumors manifest mainly in the parotid. Painless and progressive swelling of the gland is the cardinal symptom of benign as well as

Sialolithiasis | Radiology Case | RadiopaediaSubmandibular duct stone | Image | RadiopaediaPicture of Submandibular Pleomorphic Adenoma (Benign MixedGIANT SALIVARY GLAND CALCULI | buyxraysonlineCan I avoid surgery after a failed sialendoscopy?

A 60-year Female presented with uncontrolled diabetes mellitus with cellulitis of floor of mouth. She responded to oral clindamycin. When the swelling subsided, a left side submandibular calculus was discovered which was confirmed with CT Scans. Despite insulin treatment, her sugar levels remains highly uncontrolled. Her stone was removed under local anesthesia and the duct Sialolithiasis is a condition that is otherwise referred to as salivary stones or salivary calculi [1]. The disease represents up to half of the cases that involve salivary gland abnormalities and features a calcified mass (stone) that develops in the duct of a salivary gland [2].. In the staggering majority of the cases, the calculi develop in the submandibular gland, with the second largest. Jacob RF, Weber RS, King GE. Whole salivary flow rates following submandibular gland resection. Head Neck 1996; 18:242. Briffa NP, Callum KG. Use of an embolectomy catheter to remove a submandibular duct stone. Br J Surg 1989; 76:814. Salivary gland anatomy and physiology. In: Head and Neck Imaging, Som PM, Curtain HD (Eds), Mosby, St. Louis 2003 The rate of salivary gland atrophy secondary to chronic obstructive sialolithiasis has not been well-documented. The combination of 5 imaging studies over 12 years in a patient with repeat imaging. It often results from stones blocking the gland. Benign pleomorphic adenomas can also grow in the submandibular gland and the minor salivary glands, but this is rare. an MRI or CT scan can.