Sebaceous Carcinoma

Definition 1

An adenocarcinoma with sebaceous differentiation. It presents as a painless mass and it may be multifocal. It grows in the ocular adnexae and in the skin of head and neck, trunk, genitals, and extremities. It is characterized by the presence of malignant cells with multivesicular and clear cytoplasm. It may recur and metastasize. (NCI Thesaurus)

Definition 2

A malignant tumor composed of cells showing differentiation toward sebaceous epithelium. The tumor is solitary, firm, somewhat raised, more or less translucent, and covered with normal or slightly verrucose epidermis. It may be yellow or orange. The face and scalp are the commonest sites. The growth can be slow or rapid but metastasis is uncommon. Surgery cures most of the cases. (From Rook et al., Textbook of Dermatology, 4th ed, pp2403-4) (NLM, Medical Subject Headings)

Definition 3

An adenocarcinoma with sebaceous differentiation. (NCI Thesaurus/CDISC)

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