[Two cases of adult T-Cell leukemia/lymphoma with main lesion in stomach treated by VCAP-AMP-VECP regimen].

We report two cases of adult T-cell leukemia/lymphoma(ATLL)having their main lesions in the stomach. Case 1 was a 74-year-old man, complaining of left upper abdominal mass and pain. Upper gastrointestinal endoscopy revealed an ulcerous lesion in the stomach. Histological analysis and southern blotting for HTLV-1 pro-viral DNA led us to our diagnosis of ATLL. There were no apparent lesions in the bone marrow and other organs. He died of tumor lysis and multi-organ failure shortly after treatment with the VCAP-AMP-VECP regimen. Case 2 was a 68-year-old man complaining of abdominal bloating and pain. Upper gastrointestinal endoscopy disclosed an irregularity of the gastric mucosa. A biopsy sample was diagnosed pathohistologically as non-Hodgkin's lymphoma. We conducted total gastrectomy. Based on the results from the histological study and southern blotting for HTLV-1 p ro-viral DNA in the resected specimen, a diagnosis of ATLL was made. We treated him with a VCAP-AMP-VECP regimen, but multiple bone metastases and pathologic fracture occurred, proving that the disease was progressive. ATLL having a main lesion in the stomach is rare, and requires an accumulation of cases analyzed with careful diagnostic approach to establish a standard therapy for it.