Necrotizing sialometaplasia of the hard palate in a patient. Necrotizing sialometaplasia is a rare, benign inflammatory disease of the minor mucous salivary glands usually caused by glandular ischemia or trauma, that can mimic malignancy, but has a selflimiting character. Necrotizing sialometaplasia in the setting of acute and chronic sinusitis. The vast majority of cases occur on the posterior lateral hard palate. Moreno garcia and others published sialometaplasia. The diagnosis is difficult and can be dont only through a biopsy section as well as clinical history. Mar 26, 2011 necrotizing sialometaplasia ns is a benign, self limiting inflammatory reaction of salivary gland tissue which may mimic squamous cell carcinoma or mucoepidermoid carcinoma both clinically and histologically and can lead to unnecessary surgical approach. Dec 17, 2015 necrotizing sialometaplasia nsm is a rare benign, inflammatory disease of both major and minor salivary glands, although more commonly reported in the minor glands of the palate. Necrotizing sialometaplasia international journal of.
Necrotizing sialometaplasia is a rare, benign, selflimiting, necrotizing process involving the minor salivary glands, mainly the mucoserous glands of the hard palate. Necrotizing sialometaplasia nsm is a rare benign, inflammatory disease of both major and minor salivary glands, although more commonly. Review of the literature on necrotizing sialometaplasia and. The lesion is believed to be the result of vascular ischemia that may be initiated by trauma. A 21yearold woman visited a family dentist complaining of swelling and pain in the right hard palate. A further five cases were reported the following year by dunlap and barker. Necrotizing sialometaplasia uncommon locally destructive inflammatory condition of the salivary glands. This pathological lesion was first reported in 1973 by abrams et al.
Jun 23, 2014 necrotizing sialometaplasia ns is a benign, selflimiting inflammatory reaction of salivary gland tissue which may mimic squamous cell carcinoma or mucoepidermoid carcinoma, both clinically and histologically, that creates diagnostic dilemma leading to unwarranted aggressive surgery. Necrotizing sialometaplasia affects the salivary glands. Mar 29, 2018 most cases of necrotizing sialometaplasia appear to arise spontaneously, whereas others are associated with a history of trauma, vomiting, 18, 19 radiation therapy, or surgery. Oral examination revealed a nodule consisting of two lobules on the right side that measured 2. It is thought to be caused by ischemic necrosis death of tissue due to lack of blood supply of minor salivary glands in response to trauma. Necrotizing sialometaplasia ns is a benign disease showing inflammatory response which occurs in minor salivary glands mimicking a malignant lesion both clinically as well as histopathologically. Surgical management of necrotizing sialometaplasia of palate balaji.
Necrotizing sialometaplasia is an uncommon inflammatory condition that affects salivary glands. The lesion occurs due to vascular ischemia caused by trauma. It is considered by some authors to be a distinct entity 1,2 and by others to be part of the spectrum of necrotizing sialometaplasia ns. Definition of sialometaplasia, necrotizing in the dictionary. Necrotizing sialometaplasia as a cause of a nonulcerated. Experimental study of necrotizing sialometaplasia of the palate in rats. Aug 23, 2011 necrotizing sialometaplasia is a benign, selflimiting and rare inflammatory disease which, on clinical and histological examination, mimics malignant neoplasms.
An association with neoplasia, such as parotid tumors, false vocal cord squamous cell carcinoma, and maxillary sinus carcinoma, is also reported. It predominantly affects salivary tissue and usually involves the palate, although it has. Pdf necrotizing sialometaplasia ns is a selflimiting inflammatory disease, that involves salivary glands, more frequently the minor ones. The lesions are characterized histologically by an extensive necrosis of the salivary gland tissue together with squamous metaplasia of the ducts. Physicians should be aware of its clinical and histological traits in order to avoid unnecessary disfiguring surgery.
Necrotizing sialometaplasia of the hard palate in a. Nsm was first described by abrams et al in 19731 and in 1974 it was again reported by dunlap and barker. We report the case of a healthy 25yearold caucasian woman with a threeweek history of a painless lump on her hard palate. Information and translations of sialometaplasia, necrotizing in the most comprehensive dictionary definitions resource on the web. Enterocolitis necrotizante 2016 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Fascitis necrotizante tratamiento pdf cura fascitis. The lesion begins acutely with swelling and pain or numbness. Microscopically, necrotizing sialometaplasia shows marked similarity to. Surgical management of necrotizing sialometaplasia of. Necrotizing sialometaplasia is a reactive lesion of salivary gland origin. The lesion begins acutely with swelling and pain or.
Necrotizing sialometaplasia ns is a benign, ulcerative lesion, usually located towards the back of the hard palate. Necrotizing sialometaplasia necrotizing sialometaplasias. Necrotizing sialometaplasia ns which mimics malignancy both clinically and histopathologically is an uncommon benign, selflimiting inflammatory disease of the mucussecreting minor salivary glands. Necrotizing sialometaplasia ns is a benign, selflimiting inflammatory reaction of salivary gland tissue which may mimic squamous cell carcinoma or. The clinical and histopathologic features of necrotizing sialometaplasia often simulate those of malignancies such as squamous cell carcinoma or salivary gland malignancy. If you continue browsing the site, you agree to the use of cookies on this website.
Some predisposing factors such as smoking, use of alcohol, denture wearing, recent surgery, traumatic injuries. Necrotizing sialometaplasia is a benign, selflimiting and rare inflammatory disease which, on clinical and histological examination, mimics malignant neoplasms. Till date, the diagnosis of ns remains a challenge. This is caused due to the less blood supply to the salivary glands. Subacute necrotizing sialadenitis sans is a selflimiting inflammatory lesion of the minor salivary glands of unknown cause. Franklin has a great style of presentation, and i felt it was important to show others that oral.
The lesion is often misdiagnosed as malignant based on clinical and histological findings. Dec 05, 2016 enterocolitis necrotizante 2016 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. To the best of our knowledge, only 22 cases of sans have been reported, mostly on salivary palatal glands. The lesions are characterized histologically by an extensive necrosis of the salivary gland tissue together with squamous metaplasia of. Surgical management of necrotizing sialometaplasia of palate. Sialometaplasia definition of sialometaplasia by medical. Necrotizing sialometaplasia ns is a benign, self limiting inflammatory reaction of salivary gland tissue which may mimic squamous cell carcinoma or mucoepidermoid carcinoma both clinically and histologically and can lead to unnecessary surgical approach. The ensuing inflammation causes squamous metaplasia of ducts and hyperplasia of the surface stratified squamous epithelium. Review of the literature on necrotizing sialometaplasia. The characteristic clinical presentation can perplex the clinician and may be mistaken for a malignant neoplasm, such as mucoepidermoid carcinoma, as well as. Necrotizing sialometaplasia necrotizing sialometaplasia is.
We report the case of a healthy 26yearold man with a painless swelling in the hard palate near the middle raphe, asymptomatic, well limited, and raised edges. An ischemic basis for necrotizing sialometaplasia is the most accepted one. A 38yearold man with bilateral ulcerative painful lesions at the junction of the hard and soft palate was presented. Necrotizing sialometaplasia wikipedia republished wiki 2. The cause is local ischemia producing infarction of salivary acini. Necrotizing sialometaplasia nsm is an uncommon selflimiting lesion commonly confused with malignant epithelial entities. Dental practitioners should be aware of the possible causes of intraoral swellings in both children and adults. The appearance of some conditions in children may differ from their characteristic appearance in adults.
Necrotizing sialometaplasia of the palate sciencedirect. A punctate ulcer on the posterior lateral portion of the hard palate. Necrotizing sialometaplasia is a relatively uncommon oral disorder. Most cases of necrotizing sialometaplasia appear to arise spontaneously, whereas others are associated with a history of trauma, vomiting, 18, 19 radiation therapy, or surgery.
Necrotizing sialometaplasia necrotizing sialometaplasia. The necrotizing sialometaplazia ns its a rare selflimiting, inflammatory, benign disease, that most frequently affects the minor salivary glands and it is. Necrotizing sialometaplasia ns is an uncommon benign reactive necrotizing inflammatory process involving minor salivary gland that often mimics malignancy both clinically and histopathologically. Enterocolitis necrotizante 2016 linkedin slideshare. Necrotizing sialometaplasia nsm is a rare benign, inflammatory disease of both major and minor salivary glands, although more commonly reported in the minor glands of the palate. A case of sialometaplasia of the soft palate is reported in a 2yearold girl 3 months after she had an adenoidectomy. The necrotizing sialometaplazia ns its a rare selflimiting, inflammatory, benign disease, that most frequently affects the minor salivary glands and it is commonly associated to the glands located at the most posterior portion riquelme, m. This selflimiting benign lesion is easily confused with malignant tumors. It is thought to be the result of an ischemic event of the vasculature supplying the salivary gland lobules. Necrotizing sialometaplasians which mimics malignancy both clinically and histopathologically is an uncommon benign, selflimiting inflammatory disease of the mucussecreting minor salivary glands. Often painless, the condition is selflimiting and should heal in 610 weeks.
Necrotizing sialometaplasia ns is a benign, selflimiting inflammatory reaction of salivary gland tissue which may mimic squamous cell carcinoma or mucoepidermoid carcinoma, both clinically and histologically, that creates diagnostic dilemma leading to unwarranted aggressive surgery. All subsequent reports of necrotizing sialometaplasia stress the. In 1973, abrams et al first reported this condition. Lisa franklin is an oral pathologist who presented a forensics lecture to the residency.
Apr 16, 2017 these oral pathology videos are mostly recorded in urdu, which was especially recorded to help me out in my second year so i didnt have to go through the book again and again. Necrotizing sialometaplasia ns is a nonneoplastic inflammatory condition of the salivary glands. Mostly it occurs in the palate and also salivary glands. Necrotizing sialometaplasia definition of necrotizing. She had been aware of numbness in the right hard plate before this visit. Necrotizing sialometaplasia was first described in 1973 by abrams, melrose and howell1. Mar 29, 2018 necrotizing sialometaplasia ns is a nonneoplastic inflammatory condition of the salivary glands. Necrotizing sialometaplasia free download as powerpoint presentation. Sialometaplasia necrotizante necrotizing sialometaplasia.
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