毛細血管腫を伴う片側性胸水

Unilateral pleural effusion with capillary haemangioma.

• Nozomi Kadota
• Manabu Murakami
• Ryosuke Imai
• Torahiko Jinta
• Tomohide Tamura

抄録

ここでは、当初肺癌と胸膜炎を疑っていた中縦隔上の血管腫に片側性胸水を合併した1例を報告する。30歳女性の胸部X線検査で左下肺野に均一な混濁を認めた。腫瘤を切除し，病理学的には滲出性胸水を伴う良性縦隔血管腫瘍と診断された．我々の知る限りでは、この症状は縦隔血管腫の0.5％未満で発生し、さらに胸水の存在は極めて稀であり、その根本的な機序は不明である。縦隔血管腫は手術なしでは診断が困難であるが、片側性胸水を伴う腫瘍の鑑別診断に含めるべきである。

Here, we report a case of haemangioma on middle mediastinum accompanied by unilateral pleural effusion, which was initially suspected to be lung cancer and pleurisy. During annual check-up, chest radiography of a 30-year-old female showed homogeneous opacity in the left lower pulmonary field. Excision was performed, and the mass was pathologically diagnosed as benign mediastinal vascular tumour with exudative pleural effusion. To our knowledge, this presentation occurs in <0.5% of tumours of the mediastinum, and furthermore, the presence of pleural fluid is extremely rare, and the underlying mechanism is unknown. Although mediastinal haemangioma is hard to diagnose without surgery, we should include it in the differential diagnosis of a tumour with unilateral pleural effusion.

© 2020 The Authors. Respirology Case Reports published by John Wiley & Sons Australia, Ltd on behalf of The Asian Pacific Society of Respirology.