EBV-negative lymphoepithelial-like carcinoma of the lower lip
Autops. Case Rep
;
10(1): 2020138, Jan.-Mar. 2020. ilus
Article
Dans Anglais
| LILACS
| ID: biblio-1087658
ABSTRACT
Lymphoepithelial-like carcinoma (LEC) is a rare malignant neoplasm, which can be associated with Epstein-Barr virus (EBV) infection. Histologically, LEC is an undifferentiated carcinoma with an intermixed reactive lymphoplasmacytic infiltrate. LEC appears to be an uncommon tumor type of lip carcinoma. An 82-year-old white woman presented a lesion on her lower lip that developed over the last year. The lesion was characterized by ulceration with flat edges, hardened base, painful, and absence of regional lymphadenopathy. Microscopical analysis evidenced an intense inflammatory infiltrate, composed of lymphoplasmacytic cells, associated with scarce pleomorphic epithelial cells. Immunohistochemistry highlighted the LEC cells with strong expression of pan-CK AE1/AE3, EMA, p63, and p53. CD138 was also faintly positive. Ki-67 was >85%. In situ hybridization analysis did not show evidence of EBV. A diagnostic of EBV-negative LEC was made. We present an uncommon type of lip carcinoma, which can represent a diagnostic challenge for clinicians and pathologists.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Carcinome épidermoïde de la tête et du cou
/
Tumeurs de la tête et du cou
/
Maladies de la lèvre
Limites du sujet:
Adulte très âgé
/
Aged80
/
Femelle
/
Humains
langue:
Anglais
Texte intégral:
Autops. Case Rep
Thème du journal:
Anatomia
/
Patologia Cl¡nica
/
Patologia Legal
Année:
2020
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Dentista/BR
/
Universidade Estadual de São Paulo/BR
/
Universidade de São Paulo/BR
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