Tajima Kouhei, Uchida Nobuyuki, Azuma Yoko, Okada Toshiyuki, Sasamoto Hajime, Yokoo Hideaki, Kuwano Hiroyuki
Department of Surgery, Haramachi Red Cross Hospital, Agatsuma-gun, Gunma, Japan.
Ann Thorac Cardiovasc Surg. 2014;20 Suppl:609-12. doi: 10.5761/atcs.cr.12-02235. Epub 2013 Oct 3.
Plasma cell neoplasms can present as a single lesion (solitary plasmacytoma) or as multiple lesions (multiple myeloma). Solitary plasmacytoma is a rare plasma cell neoplasm. There are 2 separate entities, dependent on the location of the lesion originating in either bone or extramedullary soft tissue. It is defined as a proliferation of monoclonal plasma cells without evidence of significant bone-marrow plasma-cell infiltration. We present a 71-year-old woman who was diagnosed with a solitary plasmacytoma of the bone located in the right third rib after surgical resection. A chest roentgenogram showed a solitary expanding lesion in the right third rib. Chest computed tomography (CT) revealed an osteolytic chest wall tumor. Fluorodeoxyglucose positron emission tomography and CT (PET-CT) showed no abnormal uptake in the whole body, except for the third rib lesion. The patient underwent complete en-bloc resection of the chest wall including ribs, muscle, and parietal pleura. The patient is asymptomatic without any recurrence after one and a half years of follow up.
浆细胞肿瘤可表现为单个病灶（孤立性浆细胞瘤）或多个病灶（多发性骨髓瘤）。孤立性浆细胞瘤是一种罕见的浆细胞肿瘤。它有两种不同的类型，取决于病灶起源于骨骼还是髓外软组织。其定义为单克隆浆细胞增殖，且无明显骨髓浆细胞浸润的证据。我们报告一名71岁女性，在手术切除后被诊断为位于右第三肋骨的骨孤立性浆细胞瘤。胸部X线片显示右第三肋骨有一个孤立性扩张病灶。胸部计算机断层扫描（CT）显示为溶骨性胸壁肿瘤。氟脱氧葡萄糖正电子发射断层扫描和CT（PET-CT）显示，除第三肋骨病灶外，全身无异常摄取。患者接受了包括肋骨、肌肉和壁层胸膜在内的胸壁完整整块切除。随访一年半后，患者无症状，无任何复发。
