Objectives Patients with rheumatoid arthritis ( RA ) may develop lymphoproliferative
disorders ( RA ‐ LPD ). Immunosuppressive states due to methotrexate ( MTX ) and Epstein–Barr …

The World Health Organization classification was used to conduct an analysis of geographic,
age, sex, and lesion primarily biopsied/resected distribution of 2260 lymphoid neoplasms …

Angioimmunoblastic T‐cell lymphoma (AITL) is a peripheral T‐cell lymphoma characterized
by systemic disease with polymorphous infiltrate including macrophages. Although many …

Composite lymphomas (CLs) have been reported in 1–4.7% of all lymphomas, however, CLs
containing both T‐ and B‐cell lymphomas (CTBLs) are very rare. Here, we examined the …

Adult T-cell leukemia/lymphoma is an aggressive malignant disease associated with regulatory
T cells as discussed in some recent reports. We analyzed the expression of FOXP3, a …

We examined clinicopathologic findings in 17 cases of peripheral T-cell lymphoma, follicular
variant (f-PTCL), and compared these findings with angioimmunoblastic T-cell lymphoma (…

Primary splenic lymphoma is rare, but malignant lymphoma often produces a lesion in the
spleen as part of systemic disease. The frequency of splenic malignant lymphoma in Japan is …

Although approximately 10–20% cases of follicular lymphoma lack BCL2 gene rearrangement,
there are few reports having described the alternative genetic aberrations and their …

BACKGROUND: Blastic plasmacytoid dendritic cell neoplasm (BPDC) is a rare hematologic
neoplasm, which almost always involves the skin and shows poor prognosis. OBJECTIVE: …

Mantle cell lymphoma (MCL) is recognized as a well‐defined B cell neoplasm characterized
by overexpression of cyclin D1 (CCND1), with “classical” and “aggressive” variant subtypes. …