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Sebaceous carcinoma is a neoplastic growth of sebaceous glands. It is predominantly seen in the head and neck region given the high density of sebaceous glands in this region. The periocular region, which includes the meibomian, Zeis, and sebaceous glands of the caruncle and eyelid, is the most common site accounting for up to 75% of SGc. [6]
Sebaceoma is a smooth-bordered, plump, well-circumscribed benign tumor that may expand into the subcutis, middle dermis, and deep dermis. Lesions range in size from tiny lesions to 20 mm. Clinically, the tumor appears as a single flesh-colored or erythematous nodule or plaque in the head and neck region.
Trichilemmal cysts may be classified as sebaceous cysts, [6] although technically speaking are not sebaceous. [7] "True" sebaceous cysts, which originate from sebaceous glands and which contain sebum, are relatively rare and are known as steatocystoma simplex or, if multiple, as steatocystoma multiplex. Medical professionals have suggested that ...
Sebaceous carcinoma, an uncommon and aggressive cutaneous tumour. [ 37 ] Sebaceous cyst is a term used to refer to both an epidermoid cyst and a pilar cyst , though neither of these contain sebum, only keratin and do not originate in the sebaceous gland and so are not true sebaceous cysts.
Less common skin cancers include: Merkel cell carcinoma, Paget's disease of the breast, atypical fibroxanthoma, porocarcinoma, spindle cell tumors, sebaceous carcinomas, microcystic adnexal carcinoma, keratoacanthoma, and skin sarcomas, such as angiosarcoma, dermatofibrosarcoma protuberans, Kaposi's sarcoma, leiomyosarcoma.
Head and neck cancer is a general term encompassing multiple cancers that can develop in the head and neck region. These include cancers of the mouth, tongue, gums and lips (oral cancer), voice box (), throat (nasopharyngeal, oropharyngeal, [1] hypopharyngeal), salivary glands, nose and sinuses.