Faculty Collaboration Database

Myoepithelial differentiation in basal cell carcinoma. Am J Dermatopathol 1991 Aug;13(4):350-7

Date

08/01/1991

Pubmed ID

1928620

DOI

10.1097/00000372-199108000-00005

Scopus ID

2-s2.0-0025953383 (requires institutional sign-in at Scopus site)   40 Citations

Abstract

Five cases of basal cell carcinomas (BCC) of the skin are described showing morphologic and immunohistochemical features of myoepithelial differentiation. Histologically, they were characterized by a dermal proliferation of tumor cells connected with the epidermis by areas showing the features of conventional BCC, with the deeper portions of the lesion showing a population of oval to spindle cells with eccentric nuclei and homogeneous, ground-glass, or hyaline eosinophilic cytoplasm characteristic of the so-called hyaline cell of myoepithelial tumors of salivary glands. Additionally, scattered cells showing a signet ring configuration were present, and in two cases, focal areas displaying chondromyxoid elements were also seen that appeared to merge imperceptibly with the surrounding spindle cell population. By immunohistochemistry, the tumor cells in the spindle cell component showed strong, diffuse positivity for CAM 5.2 and muscle specific actin, and variable expression of keratin AE1/AE3, vimentin, glial fibrillary acidic protein, and S-100 protein, these findings being consistent with the immunostaining pattern of myoepithelial cells and their neoplasms. A brief review of the literature on the topic is presented, along with a discussion of the possible pathogenesis of this process.

Author List

Suster S, Ramon y Cajal S

MESH terms used to index this publication - Major topics in bold

Adult
Aged
Antigens, Neoplasm
Carcinoma, Basal Cell
Cell Transformation, Neoplastic
Epithelium
Female
Humans
Immunohistochemistry
Male
Middle Aged
Skin
Skin Neoplasms