cylindroma


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cylindroma

 [sil″in-dro´mah]
a benign skin tumor, usually on the face and scalp consisting of cylindrical masses of epithelial cells surrounded by a thick band of hyaline material. adj., adj cylindrom´atous.

cyl·in·dro·ma

(sil'in-drō'mă),
A histologic type of epithelial neoplasm, frequently malignant, characterized by islands of neoplastic cells embedded in a hyalinized stroma that may represent a thickened basement membrane; may form from ducts of glands, especially in salivary glands, skin, and bronchi; in the salivary glands, also termed adenoid cystic carcinoma.
Synonym(s): cylindroadenoma
[G. kylindros, cylinder, -oma, tumor]

cylindroma

A benign skin adnexal tumour, seen on the face, trunk and extremities, which has apocrine differentiation. Cylindromas may be solitary (and sporadic or multiple) with an autosomal dominant hereditary pattern. Cylindromas are often associated with trichoepitheliomas, especially on the scalp (turban tumour), first develop in adolescence and rarely undergo malignant degeneration.

cyl·in·dro·ma

(sil'in-drō'mă)
A histologic type of epithelial neoplasm, frequently malignant, characterized by islands of neoplastic cells embedded in a hyalinized stroma; may form from ducts of glands, especially in salivary glands, skin, and bronchi.
Synonym(s): cylindroadenoma.
[G. kulindros, roller, cylinder, fr. kulindō, to roll, + -oma, growth, neoplasm]

cyl·in·dro·ma

(sil'in-drō'mă)
Slow growing, infiltrative tumor frequently found in submaxillary and parotid salivary glands and accessory glands of the palate. Chief histologic feature is presence of uniform, small dark-staining basal cells in anastomosing cords, with acellular areas between.
[G. kulindros, roller, cylinder, fr. kulindō, to roll, + -oma, growth, neoplasm]
References in periodicals archive ?
The diagnosis basically requires the presence of an obviously malignant carcinoma component arising from a histologically identifiable background component of benign spiradenoma or cylindroma, respectively.
For reasons of academic interest, a battery of immunohistochemical studies was pursued on a representative formalinfixed and paraffin-embedded cylindroma tissue block.
Counseller, "Cylindroma of the cervix with procidentia," American Journal of Obstetrics and Gynecology, vol.
Malignant lesions include adenocarcinoma and cylindroma. Glenn S.
Outside of the head and neck, MYB-NFIB is also seen in AdCC of breast (42) and in benign dermal cylindroma. (46)
Benign appendageal/adenexal tumor (Hidradenoma papilliferum, Trichoepithelioma, Trichofolliculoma, Eccrine dermal cylindroma & Pilomatrixoma) showed predilection for females, according to Abanti sinha et al (2011)[7] females (65.21%) outnumbered males (34.78%) in their study population.
Also, lupus erythematosus, hidradenitis suppurativa, cylindroma, pilomatricoma and basal cell carcinoma may show secondary amyloid deposits.
(2-4) Adenoid cystic carcinoma (cylindroma) of the salivary glands is not uncommon, especially in the minor salivary glands.
Histologically, cylindroma is based in the dermis and consists of multiple tumor lobules of different shapes and sizes, surrounded by a prominent periodic acid-Schiff-positive basement membrane, and arranged in a jigsaw puzzle pattern without epidermal connection (Figure 8).
INTRODUCTION: Adenoid cystic carcinoma (Basaloid carcinoma, Cylindroma) though frequently associated with salivary glands can also occur at other sites of the body with a exocrine secretory glandular function like the maxillary sinus, tracheobronchial tree, nasopharynx, breast, prostate, lungs and the uterine cervix.