摘要
Background: An osteolipoma is defined as a lipoma with osseous component. Despite of the lipoma exists as a common soft tissue tumor, the osteolipoma is extremely rare. Literature review revealed limited case reports with its main occurrence located in the head and neck region. Its occurrence in the distal leg has rarely been reported. In this report, a case of osteolipoma at the distal leg was reported with series image studies and pathology. Aim and Objectives: By reporting a rare case of osteolipoma at the distal leg and its characteristic radiological, operative, and pathological findings, we believe it will be helpful for the management of the soft tissue tumor with calcification. Materials and Methods: We treated a 65-year-old woman presented with a non-tender and slowly enlarging mass in the right distal leg, close to the Achilles tendon, for more than 10 years. Preoperative physical examinations and x-ray showed a 2.6 × 2.5 cm firm and non-tender soft tissue tumor with peripheral calcification, suggesting an osteolipoma from the magnetic resonance imaging. Results: Surgical excision was done uneventfully and the pathology confirmed a benign osteolipoma. Neither complication nor tumor recurrence occurred during the 6-month follow-up. Conclusion: Although the osteolipoma is rare, preoperative diagnosis usually can be made by the magnetic resonance imaging. Afterward, its treatment is quite straightforward by surgical excision.
並列摘要
背景：定義上，骨脂瘤為具有骨成分的脂肪瘤，雖然脂肪瘤是常見的軟組織腫瘤，骨脂瘤卻非常罕見，文獻回顧僅有少數的案例報告，且主要發生在頭部和頸部，出現在遠端小腿的案例極少被報告過。這是一篇骨脂瘤發生在遠端小腿的案例報告包括一系列影像學檢查及病理結果。目的及目標：透過報告一例罕見的遠端小腿骨脂瘤及其特徵性的影像學、手術中及病理發現，我們相信這將有助於治療出現鈣化的軟組織腫瘤。材料及方法：我們治療了一位65歲的女性，該女性在10年前開始於右側遠端小腿靠近阿基里斯肌腱處出現了一個不痛且緩慢增大的腫瘤。術前理學檢查及X光影像顯示為一個2.6×2.5公分的軟組織腫瘤合併周遭鈣化，核磁共振成像臆測為一骨脂瘤。結果：該腫瘤透過手術順利移除，病理診斷確定為良性骨脂瘤。在六個月的追蹤期間，沒有術後併發症及腫瘤復發。結論：儘管骨脂瘤很少見，但通常可以通過核磁共振成像進行術前診斷。在那之後，透過手術治療將之切除是相當直接的。