摘要
脂肪肉瘤(liposarcoma)是源自間葉細胞的惡性腫瘤，好發於四肢深層軟組織以及後腹腔，發生在頭頸部不及5%。頭頸部之脂肪肉瘤因為生長緩慢，初期症狀多以無痛腫塊表現，少部分起因於腫塊過大造成局部疼痛，或因壓迫造成呼吸困難和吞嚥不適。病理上分為5種形態，以圓細胞型(round cell)和多形型(pleomorphic)為較惡性。好發於頭頸部的脂肪肉瘤則以分化良好型和黏液樣型居多。本病例報告為－24歲男性病患，主訴左前頸腫塊兩週，合併壓痛感，電腦斷層呈現左側甲狀腺一實質性腫塊合併局部氣管壓迫，經手術完整取出腫塊，病理報告證實為合併黏液樣及圓細胞型的脂肪肉瘤，術後接受全身骨骼掃描及腹部超音波檢查無異狀。因為脂肪肉瘤在頭頸部少見，而黏液樣合併圓細胞脂肪肉瘤在頭頸部更屬罕見，特提出報告。
並列摘要
Liposarcoma is a malignant tumor differentiated from mesenchymal origin, which commonly affects the extremities and retroperitoneum and makes up 9.8-16% of all soft tissue sarcoma. Head and neck liposarcoma, compared to other regions, has a prevalence rate of less than 5% and are usually symptom-free upon initial presentation. Pain and functional disturbance may occur with increasing tumor size. According to histopathological classifications from the World Health Organization five variants, namely well-differentiated, myxoid, round cell, pleomorphic, and mixed types, can be differentiated. In our report we present a case of anterior neck liposarcoma of both myxoid and round cell types in a 24-year-old male. Due to its low prevalence rate and rare histopathological pattern, it is worthy of mention.
延伸閱讀
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