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[Pulmonary Epithelioid Hemangioendothelioma Requiring Differentiation from Metastatic Lung Tumor:Report of a Case]
Jin Sakamoto1, Tadashi Gomyoda, Noritaka Isowa
1Department of Thoracic Surgery, Shimane Prefectural Cantral Hospital, Izumo, Japan.
Background:
Pulmonary epithelioid hemangioendothelioma is a rare malignant disease, and most cases are found as multiple lung nodules, rarely as a single nodule.
Case:
Computed tomography( CT) in a 71-year-old man revealed a growing 3-mm lung nodule in the left S6 after rectal cancer operation. Wedge resection was performed. A pathological examination resulted in a diagnosis of pulmonary epithelioid hemangioendothelioma based on CD31 and CD34 positivity in immunohistochemistry.
Conclusion:
When new nodules are noted on routine CT scans of other malignancies, it is essencial to make a pathological diagnosis, bearing in mind that pulmonary nodules can arise from a variety of causes.
