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serous cystadenoma |
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serous cystadenoma [′sir·əs ‚sist‚ad·ən′ō·mə] (medicine) A benign cystic tumor of the ovary, made up of cylindrical cells resembling those of the uterine tube; psammoma bodies often appear in the wall of the cyst. Also known as endosalpingioma; papillary adenoma of ovary; papillary cystadenoma of ovary; papillocystoma; psammomatus papilloma; serous cystoma. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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In 1995, Apel et al described a subtype of papillary carcinoma of the thyroid that is made up primarily or entirely of Hurthle cells within a lymphocytic stroma; this entity displays a striking resemblance to Warthin's tumor (papillary cystadenoma lymphomatosum of the salivary gland). MECs must be distinguished from necrotizing sialometaplasia, chronic sialadenitis, cystadenoma, cystadenocarcinoma, squamous cell carcinoma, epithelial-myoepithelial carcinoma, clear cell carcinoma (not otherwise specified), and metastatic tumors. False negatives and false positives for benign and malignant disease Pathology n False negatives, benign (n = 8) Pleomorphic adenoma 3 Oncocytoma 2 Cystadenoma 1 Myofibroblastic tumor 1 Warthin's tumor 1 False positives, benign (n = 2) Adenocarcinoma (arising 1 in pleomorphic adenoma) Lymphoma 1 False negatives, malignant (n = 5) Lymphoma 2 Adenocarcinoma (arising 1 in pleomorphic adenoma) Adenoid cystic carcinoma 1 Melanoma 1 False positive, maglinant (n = 1) Pleomorphic adenoma 1 |
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