Case Report

Bilateral Wrist Tenosynovitis owing to Acute Conversion of Adult T-Cell Leukemia-Lymphoma in a Patient with Rheumatoid Arthritis

Figure 5

Immunohistological analyses of the tenosynovial tissue biopsy specimens. Abnormal lymphocytes with CD3(+), CD4(+), CD8(-), CD20(-), CD25(+), CD30(-), CCR4(+), and Foxp3(+) profiles are observed. Ki-67 was positively expressed overall. H&E: hematoxylin and eosin; CCR4: CC chemokine receptor 4.