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Table 2 Endoscopic and histological findings in the GI tract and cell-surface markers in four patients with MEITL

From: Multiple lesions of gastrointestinal tract invasion by monomorphic epitheliotropic intestinal T-cell lymphoma, accompanied by duodenal and intestinal enteropathy-like lesions and microscopic lymphocytic proctocolitis: a case series

  Case 1 Case 2 Case 3 Case 4
Duodenal tumour lesions Edematous mucosa Edematous mucosa Reddish granular mucosa Submucosal tumors, pinhole-like stenosis
Intestinal tumour lesions Diffuse thickening, circumferential ulcers Diffuse thickening, ulcerative tumours Diffuse thickening Diffuse thickening
Colonic tumor lesions Edematous mucosa Edematous mucosa Edematous mucosa with erosions and ulcers Edematous mucosa
Duodenal nonneoplastic lesion Edematous mucosa, villous atrophy Edematous mucosa, villous atrophy Edematous mucosa, villous atrophy Edematous mucosa, villous atrophy
Intestinal nonneoplastic lesion Diffuse edematous mucosa, villous atrophy Diffuse granular mucosa, villous atrophy Diffuse granular mucosa, villous atrophy Diffuse granular mucosa, villous atrophy
Colorectal nonneoplastic lesion Edematous mucosa Edematous mucosa Edematous mucosa Edematous mucosa
Tumour invasion (S/D/I/C/R) +/+/+/+ (cecum)/− −/+/+/+ (cecum) /− ne/+/+/+/+ ne/+/+/+/+
Duodenal and intestinal enteropathy + + + +
Lymphocytic proctocolitis + + + +
Increase of reactive T-IELs (D/I/C/R) +/+/+/+ +/+/+/− +/+/+/+ +/+/+/+
CD103 + + + +
TCR βF1 + +
TCR CγM1 + +
CD3 + + + +
CD4
CD7 + + + +
CD8 + + + +
CD56 + + + +
TIA1 + + + +
CD5
CD30
  1. S Stomach, D Duodenum, I Intestine, C Colon, R Rectum, IELs Intraepithelial lymphocytes, TCR T-cell receptor, TIA T-cell intracellular antigen