Myxoma as a Rare Cause of Posterior Mediastinal Masses

黏液瘤是一種常出現在心臟的間質細胞瘤。然而在縱膈腔的黏液瘤是相當罕見的，只有非常少數的縱膈腔黏液瘤曾在過去的文獻被提及。在此，我們報告一位54歲男性於健康檢查接受胸部X光檢查時，意外發現的縱膈腔黏液瘤。病人僅抱怨輕微的右側胸痛，其電腦斷層顯示在縱膈腔出現一個均質、未顯影，且被完整包覆的腫瘤。病人之後接受胸腔鏡手術切除腫瘤。病理切片上發現在鬆散的纖維基質中散布著一些紡錘狀細胞。病理診斷最終確定是縱膈腔的黏液瘤。而在術後的兩年追蹤也沒有發現復發的情形。本病例提醒我們，黏液瘤仍舊可能是造成縱膈腔腫瘤的原因，而治療上則是建議完全的切除以避免再度復發。

關鍵字

黏液瘤；縱膈腔腫瘤；縱膈腔黏液瘤

並列摘要

Myxomas are rare benign mesenchymal tumors that most frequently occur within the myocardium. Myxoma with mediastinal localization is extremely rare, and few cases have been described in the medical literature. Here, we present a 54-year-old man with a mediastinal mass found incidentally by chest radiography. He complained only of vague chest pain at the right-side chest wall. Computed tomography scan of the chest revealed a wellencapsulated, homogenous and non-enhanced lesion at the posterior mediastinum, with a content density higher than water and normal fat. He received video-assisted thoracoscopic surgery for tumor excision, and pathology revealed spindle cells set in a loosely fibrillar stroma, compatible with the histological diagnosis of myxoma. During follow-up for 2 years after the surgical resection, there was no recurrence. Our case reminds us that myxoma may be a rare cause of mediastinal tumors, and complete resection of the tumor is recommended in order to avoid recurrence.

並列關鍵字

myxoma ； mediastinal mass ； mediastinal myxoma

國際替代計量

Myxoma as a Rare Cause of Posterior Mediastinal Masses

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