Primary mucoepidermoid carcinoma of the external auditory canal with a CRTC1::MAML2 fusion: A case report and a review of literature.
J Cutan Pathol
; 50(11): 947-950, 2023 Nov.
Article
in En
| MEDLINE
| ID: mdl-37394842
ABSTRACT
Mucoepidermoid carcinoma is a malignant neoplasm of exocrine glands that arises predominantly in salivary glands. It is seldom encountered as a primary cutaneous neoplasm, and in those patients, it often involves the external auditory canal. Given their rarity, they can pose a diagnostic challenge and prompt extensive workup. In salivary glands, mucoepidermoid carcinomas commonly harbor CRTC1/3MAML2 fusions; however, genetic alterations of primary cutaneous neoplasms are less characterized, with previous studies reporting CRTC1 rearrangements in the absence of MAML2 aberrations. Herein, we report a case of a primary cutaneous mucoepidermoid carcinoma of the external auditory canal with a CRTC1MAML2 rearrangement. We also review the clinical, morphologic, and molecular features of this neoplasm and compare them to those reported in the literature and to histopathologic mimics.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Skin Neoplasms
/
Salivary Gland Neoplasms
/
Carcinoma, Mucoepidermoid
Limits:
Humans
Language:
En
Journal:
J Cutan Pathol
Year:
2023
Document type:
Article
Affiliation country:
Estados Unidos