Sahni, VaibhavSunandan, SikdarAgarwal, Satish KSingh, Narinder PGanguli, Anirban2009-05-282009-05-282005-07-09Sahni V, Sunandan S, Agarwal SK, Singh NP, Ganguli A. Rare thoracic mass lesion--myofibrobastoma. Indian Journal of Cancer. 2005 Jul-Sep; 42(3): 161-4http://imsear.searo.who.int/handle/123456789/49690Mesenchymal soft tissue masses are uncommon tumours of the chest. Myofibroblastoma is a recently described entity consisting of cells with origin from the myoepethelial cell, mostly seen as benign well-circumscribed neoplasms of the breast tissue. Though usually classified as a benign lesion, rarely it can be multifocal and prone to recurrence. We describe below the case of a 26-year-old female who presented with exertional dyspnoea and evidence of a massive mass lesion in the left hemithorax causing mediastinal displacement to the opposite side. On histological and immunophenotypic analysis, a diagnosis of the very rare thoracic myofibroblastoma was made. The incidence, salient features, pathological differential diagnoses and treatment are reviewed.engAdultDiagnosis, DifferentialFemaleHumansImmunohistochemistryNeoplasms, Muscle Tissue --diagnosisSoft Tissue Neoplasms --diagnosisCase Reports