An unusual enteropathy-associated T-cell lymphoma with MYC translocation arising in a Japanese patient: A case report

作者：Okumura Kenji^*; Ikebe Masahiko; Shimokama Tatsuro; Takeshita Morishige; Kinjo Nao; Sugimachi Keishi; Higashi Hidefumi

来源：World Journal of Gastroenterology, 2012, 18(19): 2434-2437.

DOI：10.3748/wjg.v18.i19.2434

• Enteropathy-associated T-cell lymphoma
• Celiac disease
• Human T-lymphotropic virus-1
• Fluorescent in situ hybridization
• Chromosome 8p24

Enteropathy-associated T-cell lymphoma (EATL) is a rare peripheral T-cell lymphoma classified into 2 types, with or without celiac disease, based on histology. Type 2 EATL is less commonly associated with celiac disease, in which cells are characterized by being monomorphic and small- to medium-sized. Cells are characterized by CD8 and CD56 expression and c-MYC oncogene locus gain. We present an atypical case of type 2 EATL in the jejunum, with human T-lymphotropic virus-1 that was CD4- CD8+ CD56- CD30- CD25- TIA-1+ and granzyme B+ on immunohistological staining. It also displayed translocation of chromosome 8p24 (c-MYC), as determined by fluorescent in situ hybridization. Mucosal spreading and intraepithelial invasion by lymphoma with villous atrophy were detected adjacent to the mucosal layer. The lymphoma may be derived from intraepithelial CD8+ T cells, similar to celiac disease.

• 出版日期2012-5-21