case_images: PMC10961394_01
case_images: Histopathological results of different parts. (A) Hematoxylin-eosin (HE) staining (100X) of the junction between the diffuse large B-cell lymphoma (DLBCL) and peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS) in the intestinal mucosa. (B) HE staining of intestinal mucosa with PTCL-NOS (x400). (C) HE staining of the intestinal mucosa with DLBCL (x400).
case_images: fonc-14-1272209-g001.jpg
case_images: PMC10961394_01_fonc-14-1272209-g001.jpg
case_images: f1
case_images: Histopathology of small bowel resection (Figures 1, 2) is as follows. (1) DLBCL was found in the small intestine (1 cm, 6.5 cm, and 16 cm away from the incision), which was germinal center B-cell-like (GCB) DLBCL according to the Hans algorithm.
case_images: Immunohistochemical staining (IHC) of the two components. Positive IHC staining of CD20 (A), CD10 (B), MUM1 (C), Bcl-6 (D), Ki67 (E) and negative staining of EBER (F) in DLBCL. Positive IHC staining of CD20 (G), CD3 (H), CD5 (I), CD7 (J), Ki67 (K) and negative staining of EBER (L) in PTCL-NOS.
case_images: fonc-14-1272209-g002.jpg
case_images: PMC10961394_01_fonc-14-1272209-g002.jpg
case_images: f2
case_images: Histopathology of small bowel resection (Figures 1, 2) is as follows. (1) DLBCL was found in the small intestine (1 cm, 6.5 cm, and 16 cm away from the incision), which was germinal center B-cell-like (GCB) DLBCL according to the Hans algorithm.
case_images: PET/CT scan after small bowel resection (A), three cycles of R-CHOP (B), and five months after treatment (C). The arrows demonstrated the lesions where abdominal masses disappeared.
case_images: fonc-14-1272209-g003.jpg
case_images: PMC10961394_01_fonc-14-1272209-g003.jpg
case_images: f3
case_images: The increased FDG uptake of the multiple segments of the small intestine in the left abdomen and lymph nodes in the pelvic mesenteric indicated the involvement of lymphoma (Figure 3). He received three cycles of R-CHOP (Rituximab, Cyclophosphamide, Epirubicin, Vindesine, Prednisone) and achieved partial remission (PR) (Figure 3B). On August 20, 2020, a PET-CT scan showed the disease was in metabolic remission with a Duveil score of 3 (Figure 3C).