Malignant Fibrous Histiocytoma of Shoulder Masquerading as Adhesive Capsulities

Dr. Kushwanth, Dr. Venkatachalam

Abstract: Malignant fibrous histiocytoma (MFH) is a rare malignant primary bone tumour that contains a mixture of fibrogenic cells that are histologically similar to histocytes. Histologically MFH appear as large multi-nucleated malignant cells, with abundant cytoplasmic nuclei. Incidence: MFH constitutes less than 2 % of all primary malignant bone tumours. Common in males. A number of histological subtypes have been described including (1, 2) • storiform-pleomorphic: most common 50-60 % • myxoid: 25 %, myxofibrosarcoma • inflammatory: 5-10 % • giant cell: 5-10 % • angiomatoid Location: distal femur (most common) >proximal tibia>proximal humerus (rare).

Keywords: Malignant primary bone tumour, Malignant fibrous histiocytoma