Cutaneous leiomyosarcoma is a rare malignant soft tissue sarcoma that accounts for about 2-3% of all superficial soft tissue sarcomas. It mostly present in middle aged to elderly males with a predilection for lower limbs. Due to non specific morphologic features with a host of differential diagnosis, immunohistochemistry plays important role in arriving at the final diagnosis. We present the case of 77 year old woman with cutaneous leiomyosarcoma located on the upper back.