Tsuruda T, Ohashi T, Uezono S, Kato J, Nagatomo Y, Sakata J, Haraguchi Y, Eto T
First Department of Internal Medicine, Miyazaki Medical College.
Intern Med. 1996 May;35(5):422-6. doi: 10.2169/internalmedicine.35.422.
A case of extramedullary plasmacytoma (EMP) of the jejunum, an uncommon neoplasia, is reported. A 56-year-old Japanese woman who experienced intermittent upper abdominal pain and weight loss had a large movable mass in the upper abdomen. The mass was hypervascular in an angiographic study and positive for gallium-67 citrate scintigraphy. Immunoelectrophoresis showed the presence of an M-component of immunoglobulin (Ig) A-lambda in the serum. It was identified as an EMP immunohistochemically positive for IgA-lambda. This M-component disappeared after resection and chemotherapy. The clinical features of this rare neoplastic disorder are discussed.
本文报告一例空肠髓外浆细胞瘤（EMP），这是一种罕见的肿瘤。一名56岁的日本女性，有间歇性上腹部疼痛和体重减轻的症状，上腹部可触及一个较大的活动肿块。血管造影显示该肿块血运丰富，枸橼酸镓-67闪烁扫描呈阳性。免疫电泳显示血清中存在免疫球蛋白（Ig）A-λ的M成分。经免疫组化鉴定为IgA-λ阳性的EMP。切除及化疗后，该M成分消失。本文还讨论了这种罕见肿瘤性疾病的临床特征。
