This case is a pathologically proven case of nodular fasciitis (also termed sometimes nodular pseudosarcomatous fasciitis).
Although nodular fasciitis tends to be smaller than 4-5 cm size, this is an unusual case with large size of the lesion. Possibilities of nodular fasciitis and low-grade fibrosarcoma were kept. While doing surgery, surgeon took a wide incision, and lesion was excised in-toto. It is important to rule out cold abscess in such cases, as a cold abscess could be easily drained by a smaller incision.