eng Science and Education Publishing American Journal of Medical Case Reports 2374-216X 2017-08-23 5 8 217 220 10.12691/ajmcr-5-8-4 AJMCR2017584 article Yusfitaria Alvina 1 Muhammad Nuralim Mallapasi 2 Rosie Rosie 2 Prihantono Prihantono prihantono.md@gmail.com 2 Department of Surgery, Faculty of Medicine Hasanuddin University, Makassar, Indonesia Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine Hasanuddin University, Makassar, Indonesia Malignant Fibrous Histiocytoma (MFH) is a mesenchymal tumor from fibroblast differentiation and histiocyte like cells. This tumor found in 1964 and representing the biggest type of sarcoma. The Incidence of Malignant Fibrous Histiocytoma in lung about 20-24%, with the men and women ratio 2: 1. Diagnosis of Malignant Fibrous Histiocytoma's hard because found in a patient without symptoms. In this case, a 62 years old patient, professional history as a gold miner for 36 years complained chest pain particularly in the left chest. Investigated by posteroanterior chest radiograph and thoracic CT scan obtained a picture of the left lung tumor, then performed thoracotomy surgery and excision of tumors. Histopathological examination showed a Malignant Fibrous Histiocytoma. Patient is repatriated from the hospital 5 days after surgery in good condition and undergoes routine follow up every six months. Follow up 3 years after Surgery patient is in good health and no sign of residif of the tumor. http://pubs.sciepub.com/ajmcr/5/8/4/ajmcr-5-8-4.pdf malignant fibrous histiocytoma lungs fibroblast