FNAC of inflammatory myofibroblastic tumour of the subcutis: a diagnostic dilemma.

Inflammatory myofibroblastic tumour formerly also known as inflammatory pseudotumour, was recognized initially in the lung and has been described in other visceral organs. It's occurrence in the subcutis is not well documented and its cytological appearance may be misinterpreted as malignant. This is the first case report of inflammatory myofibroblastic tumour of the subcutis in pediatric age group. A 12 year old female child presented with a subcutaneous swelling in the left anterior chest wall. FNA was performed and the cytological appearances were interpreted as malignant. Histopathology and immunohistochemistry revealed an inflammatory myofibroblastic tumour of the subcutis. FNA cytology is not very helpful in distinguishing inflammatory myofibroblastic tumour from malignant lesions especially soft tissue sarcomas. Awareness of it's occurrence in the subcutis is of importance for it's proper identification and treatment.