case_images: PMC10758893_01
case_images: Abdominal enhanced CT examination. (a) Non-enhanced CT, (b) corticomedullary phase, (c) nephrographic phase, and (d) excretory phase.
case_images: IJU5-7-11-g001.jpg
case_images: PMC10758893_01_IJU5-7-11-g001.jpg
case_images: iju512655-fig-0001
case_images: Abdominal enhanced CT examination was performed that showed good enhancement of the noted mass in the corticomedullary phase and washout in the nephrographic phase (Fig. 1).
case_images: (a) Cross-section of the tumor revealed a dark red interior, and the borders were indistinct. Scale bar: 1 cm (b) HE staining of the tumor showed a diffuse infiltrate of intermediately sized atypical lymphocytes. Scale bar: 100 mum Immunohistochemical staining showed that the lymphocytes were (c) CD3(+) and (d) CD20(-). Scale bar: 20 mum.
case_images: IJU5-7-11-g003.jpg
case_images: PMC10758893_01_IJU5-7-11-g003.jpg
case_images: iju512655-fig-0002
case_images: With further immunohistochemical staining, it was found that the lymphocytes were CD3(+) and CD20(-) (Fig. 2), indicating that the neoplastic lymphoid cells were considered to be of T-cell origin.
case_images: Immunohistochemical staining: (a) CD4(-), (b) CD8(+), (c) TIA-1(+), (d) EBER(-). Scale bar: 20 mum.
case_images: IJU5-7-11-g002.jpg
case_images: PMC10758893_01_IJU5-7-11-g002.jpg
case_images: iju512655-fig-0003
case_images: Immunostained lymphocytes were CD4(-), CD8(+), TIA-1(+), and EBER(-) (Fig. 3).