Chen T C, Wu J H, Ng K F, Lien J M, Hung C F
Department of Pathology, Chang Gung Memorial Hospital, Tao Yuan, Taiwan, Republic of China.
Am J Hematol. 1998 Jul;58(3):235-8. doi: 10.1002/(sici)1096-8652(199807)58:3<235::aid-ajh13>3.0.co;2-8.
Solitary extramedullary plasmacytoma is an uncommon neoplasm and occurs most frequently in the upper respiratory tract. Herein, we reported a solitary extramedullary plasmacytoma in the retroperitoneum. A 28-year-old man presented with obstructive jaundice and a retroperitoneal tumor. Ultrasound-guided biopsy confirmed that the lesion was a plasma cell neoplasm. A detailed investigation showed that no other sites were involved. The tumor got a moderate reduction following local irradiation, and a complete remission was achieved after 12 courses of adjuvant chemotherapy. Therefore, the possibility of a solitary extramedullary plasmacytoma should be considered in the differential diagnosis of obstructive jaundice without a history of multiple myeloma.
