Solitary extramedullary plasmacytoma in the retroperitoneum.
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.
Chen
T C
TC
Department of Pathology, Chang Gung Memorial Hospital, Tao Yuan, Taiwan, Republic of China.
Wu
J H
JH
Ng
K F
KF
Lien
J M
JM
Hung
C F
CF
D000328:Adult; D001651:Cholestasis, Extrahepatic / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D010954:Plasmacytoma / Q000175:diagnosis*; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*; D013927:Thrombosis / Q000175:diagnosis; D014682:Vena Cava, Inferior