| syringoid | Resembling a tube or fistula. Origin: syringo-+ G. Eidos, resemblance (05 Mar 2000) |
|---|---|
| acrospiroma, eccrine | A tumour derived from eccrine sweat duct epithelium which may be intra-epidermal (hidro-acanthoma simplex), juxta-epidermal (eccrine poroma) or intradermal (dermal duct tumour). They are comparatively uncommon. There is no indication that heredity or external agents cause these tumours. (rook et al., textbook of dermatology, 4th ed, p2409) (12 Dec 1998) |
| eccrine | <dermatology> Denoting the flow of sweat. Synonym: exocrine. Origin: G. Ek-krino, to secrete (05 Mar 2000) |
| eccrine acrospiroma | <tumour> A tumour derived from eccrine sweat glands, composed of glycogen-rich clear cells. Synonym: eccrine acrospiroma, nodular hidradenoma. (05 Mar 2000) |
| eccrine gland | <anatomy, dermatology> A coiled tubular sweat gland (other than apocrine gland's) that occurs in the skin on almost all parts of the body and secrete sweat directly onto the skin. (05 Mar 2000) |
| eccrine poroma | <tumour> A poroma or acrospiroma of the eccrine sweat glands, usually occurring on the sole of the foot. (05 Mar 2000) |
| eccrine spiradenoma | <tumour> A typically painful benign skin tumour composed of two cell types derived from the secretory part of eccrine sweat glands. (05 Mar 2000) |
| acinar carcinoma | <tumour> An adenocarcinoma arising from secreting cells of a racemose gland, particularly the salivary glands. Synonym: acinar carcinoma, acinic cell carcinoma, acinose carcinoma, acinous carcinoma. (05 Mar 2000) |
| acinic cell carcinoma | <tumour> An adenocarcinoma arising from secreting cells of a racemose gland, particularly the salivary glands. Synonym: acinar carcinoma, acinic cell carcinoma, acinose carcinoma, acinous carcinoma. (05 Mar 2000) |
| acinous carcinoma | <tumour> An adenocarcinoma arising from secreting cells of a racemose gland, particularly the salivary glands. Synonym: acinar carcinoma, acinic cell carcinoma, acinose carcinoma, acinous carcinoma. (05 Mar 2000) |
| adenoid cystic carcinoma | <tumour> A histologic type of carcinoma characterised by large epithelial masses containing round, glandlike spaces or cysts which frequently contain mucus or collagen and are bordered by a few or many layers of epithelial cells without intervening stroma, forming a cribriform pattern like a slice of Swiss cheese; perineural invasion and haematogenous metastasis are common; occurs most commonly in salivary glands. Synonym: cylindromatous carcinoma. (05 Mar 2000) |
| adenoid squamous cell carcinoma | <tumour> A malignant neoplasm consisting chiefly of glandular epithelium (adenocarcinoma), usually well differentiated, with foci of metaplasia to squamous (or epidermoid) neoplastic cells. Synonym: adenoid squamous cell carcinoma. (05 Mar 2000) |
| adenosquamous carcinoma | <tumour> A type of lung tumour exhibiting areas of clear cut glandular and squamous cell differentiation along with regions of the undifferentiated carcinoma. (05 Mar 2000) |
| adnexal carcinoma | <tumour> A carcinoma arising in, or forming structures resembling, skin appendages. (05 Mar 2000) |
| alveolar cell carcinoma | <tumour> A carcinoma, thought to be derived from epithelium of terminal bronchioles, in which the neoplastic tissue extends along the alveolar walls and grows in small masses within the alveoli; involvement may be uniformly diffuse and massive, or nodular, or lobular; microscopically, the neoplastic cells are cuboidal or columnar and form papillary structures; mucin may be demonstrated in some of the cells and in the material in the alveoli, which also includes denuded cells; metastases in regional lymph nodes, and even in more distant sites, are known to occur, but are infrequent. Synonym: alveolar cell carcinoma, bronchiolar adenocarcinoma, bronchiolo-alveolar carcinoma, bronchioloalveolar adenocarcinoma. (05 Mar 2000) |