Buckley S L, Burkus J K
Department of Orthopaedic Surgery, Naval Hospital, Oakland, California 94627.
Clin Orthop Relat Res. 1988 Mar(228):297-301.
Intraosseous lipoma is the rarest of the benign primary tumors of bone. It occurs most often in the metaphysis of long bones and is usually identified as an incidental roentgenographic finding. A 53-year-old man demonstrated a mass in his buttock and a lytic lesion of his ilium. Preoperative computed axial tomography (CAT) scanning was helpful in establishing its anatomic boundaries and the cellular composition of the mass. The CAT scan demonstrated the tumor extending anteriorly and posteriorly through the ilium and having a uniform soft tissue density with the same attenuation as adipose tissue. The patient was successfully treated with a marginal excision of the tumor. An intraosseous lipoma seems not to have been previously reported to involve the ilium or be associated with significant extension into soft tissue.
骨内脂肪瘤是最罕见的原发性骨良性肿瘤。它最常发生于长骨的干骺端，通常是在X线检查时偶然发现。一名53岁男性臀部出现肿物，髂骨有溶骨性病变。术前计算机轴向断层扫描（CAT）有助于确定其解剖边界和肿物的细胞组成。CAT扫描显示肿瘤通过髂骨向前和向后延伸，具有均匀的软组织密度，与脂肪组织的衰减相同。患者通过肿瘤边缘切除得到成功治疗。此前似乎没有骨内脂肪瘤累及髂骨或显著延伸至软组织的报道。
