Carcinoma ex pleomorphic adenoma

Lesions involving the oral and oropharyngeal minor glands formed 17.5% of the AFIP series {669}. 63% of cases were in the palate and 10.5% were in the upper lip. There were no cases in the lower lip. Other sites included the tongue, buccal

Pleomorphic Adenoma Oral

Fig. 4.33 Pleomorphic adenoma which started at palate involving the mid face and entire oral cavity.

Carcinoma Pleomorphic Adenoma

Fig. 4.34 A Pleomorphic adenoma. Tumour presenting as a firm swelling on the lateral aspect of the junction between the hard and soft palate. B Plasmacytoid, or hyaline myoepithelial cells are often a conspicuous feature of pleomorphic adenomas of minor glands. C Tumors may have an abundant lipomatous component that is occasionally misinterpreted as invasion. D Multifocal adenomatosis. Both basal cell adenoma and canalicular adenoma can show multifocal tumours and evidence of duct transformation within salivary gland lobules.

Fig. 4.33 Pleomorphic adenoma which started at palate involving the mid face and entire oral cavity.

mucosa and tonsil/oropharynx. They usually form a painless mass of long duration and there may be a history of recent rapid growth, often with ulceration. The microscopical features are similar to those of major glands.

Mucinous adenocarcinoma is very rare while clear cell carcinoma is a controversial entity; both are discussed in Chapter 5.

Salivary gland adenomas ICD-O codes

Pleomorphic adenoma 8940/0

Myoepithelioma 8982/0

Basal cell adenoma 8147/0

Canalicular adenoma 8149/0

Duct papilloma 8503/0

Cystadenoma 8440/0

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  • jens
    How to cure pleomorphic adenoma?
    4 years ago

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