Myopericytoma: a pleural-based spindle cell neoplasm off the beaten path.

Myopericytoma is a recently described hemangiopericytoma-like neoplasm with myoid differentiation. These tumors are typically located in the subcutaneous and soft tissues of the extremities. The authors report a rare pleural-based pulmonary myopericytoma in a 58-year-old woman.

Pleural mesothelioma: sensitivity and incidence of needle track seeding after image-guided biopsy versus surgical biopsy.

Purpose: To retrospectively compare the sensitivity of image-guided core-needle biopsy, thoracoscopy, and thoracotomy in the diagnosis of malignant pleural mesothelioma and to retrospectively determine the incidence of needle track seeding after these procedures.

Materials And Methods: Institutional review board approval was obtained, and informed consent was not required. The study included 100 consecutive patients (81 men, 19 women; average age, 65.