SinMycosis fungoides (MF), a common form of primary ctitaneous T-cell lymphoma (CTCL), is a type of to nonHodgkin's lymphoma (HL). Although the coexistence of multiple distinct lymphoid neoplasms in the same itidividual is rare, cases of CTCL associated with HL or other types of non-Hodgkin's lymphoma have been described previously (1-3). We report here a rare case of MF associated with a composite recurrent HL and diffuse large B-cell lymphoma (DLBCL).
CASE REPORTiA 75-year-oid Japatiese man was referred to our hospital with scaly erythematous plaques distributed over most of his body. The patient had a histoiy of nodular-sclerosing subtype HL diagnosed at the age of62 years with persistent fever and left axillary lymph node swelling. Biopsy specimens from axillary lymph nodes showed a pleomorphic cellular infiltróte with bands of fibrosis and contained nunieroiis large atypicul cells, including ReedStemberg cells and lacunar cells {Fig. la). Immunohistochemistry and in situ hybridization showed thai the Reed-Stcmbcrg cells were positive for CD30 and Epstein-Barr vims-encoded RNA (EBER) and negative for CD20. In addition. T-cell markers were negative. These features confirmed the diagnosis of nodularsclerosis subtype of HL. He was treated with polychemotherapy (cyclophosphamide, vincristine, procarbazine and prednisolone) combined with radiation therapy and complete remission was achieved. Mis medical history was otherwise unremarkable.At presentation, scaly erythematous patches and infiltrated plaques were distributed over most of ihe patient's body (Fig. 2a). The skin lesions had initially appeared at the age of 64 years on his left arm and the number of lesions increased year after year. He had no lymphadenopathy. Hislological examination of a skin biopsy specimen from the left shoulder revealed infiltration of small lymphocytes with only subtle nuclear atypia in the epidermis and superficial dennis (Fig. 2b). Immunohistochemieal study showed that these atypical cells were positive forCD3 and CD4., bul negative for CD20 and CD30. Southern blotting analysis of T-cell receptor gene using DNA from lesional skin detected a monoclonal rearrangement band. Further detailed examination revealed no visceral, lymph node, or blood involvement. The patient was diagnosed with MF. T2bNOMOIîO, clinical stage Ib.The skin lesions were treated with oral psoralen-ultraviolet A (PUVA) therapy and topical corticosteroid. resulting in partial improvement. The skin lesions remained stable thereafter. Three years after the diagnosis of MF. a subcutaneous mass (3.5x3.0 cm) appeared on the patient's left lower abdomen. He also developed swelling of multiple lymph nodes, ranging from the aortic bifurcation region to the bilateral inguinal region. Biop.sy specimens from the inguinal lymph nodes showed almost the same pathological findings as those from axillary lymph nodes at the age of 62 years (Fig. Ib). In addition, there was a lesion composed of diffuse infiltration of large-sized centroblasts(FÍg. le). Most large atypical lymphocyt...