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  • Title: Characteristic endobronchial ultrasound image of hemangiopericytoma/solitary fibrous tumor.
    Author: Chen F, Yoshizawa A, Okubo K, Date H.
    Journal: Interact Cardiovasc Thorac Surg; 2010 Sep; 11(3):331-2. PubMed ID: 20591892.
    Abstract:
    Hemangiopericytomatous pattern is characteristic of hemangiopericytoma/solitary fibrous tumor (HPC/SFT) and certain histological features might indicate a malignant potential, but the behavior of HPC/SFT is unpredictable. Endobronchial ultrasound (EBUS) is a useful diagnostic device in that the ultrasonographic image can be viewed and the EBUS-transbronchial needle aspiration can obtain a biopsied sample. We herein report a patient undergoing multiple surgical resections of recurrent HPC/SFT. A 74-year-old man had undergone right upper lobectomy for HPC/SFT 15 years ago. He received a partial resection of the left lung and a resection of the anterior mediastinal mass for its recurrences 13 years and six years ago, respectively. He had also undergone surgery for gastric carcinoma two years ago. He then presented with a tumor measuring 3 x 4 cm in the subcarinal area. Preoperative EBUS revealed a tumor with abundant thin-walled vessel-like structures, which was consistent with HPC/SFT. The tumor was completely resected and was finally diagnosed as low-grade malignant HPC/SFT.
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