例1,男,56岁,左腓骨上1/3处肿块3年,近来增大,轻痛,质硬不活动,X线诊断为外生性骨疣,术中见结节状肿块,骨周无粘连,术后痊愈。 病理检查:病理号801322,骨组织切面见1.5 cm×2cm×2 cm结节状淡黄界清。镜下见成熟脂肪,其中有散在骨小梁,无造血成份。诊断:骨内脂肪瘤。 例2,男,67岁,因下肢轻痛1年并摸到隆起,X线见右腓小头骨质膨胀呈多房囊性透光区。无骨膜反应,考虑 Example 1, male, 56 years old, with a mass of 1/3 of the left sacrum for 3 years, recently enlarged, light pain, hard inactivity, X-ray diagnosis of exogenous osteophyte, nodular mass during surgery, periodontal No adhesion, recovery after surgery. Pathological examination: pathological number 801322, bone tissue section see 1.5 cm × 2cm × 2 cm nodular pale yellow border clear. See mature fat under the microscope, which scattered bone trabecula, no hematopoietic ingredients. Diagnosis: Intraosseous lipomas. Example 2, male, 67 years old, with mild pain in the lower extremities for 1 year and touching uplift, X-ray seen in the right skull with small skull mass swelling in multi-room cystic translucent area. No periosteal reaction, consider