Submitted material is fragmented showing ulcerated surface mucosa with related dense infiltration by neutrophils, lymphocytes, plasma cells and, macrophages. Picture is consistent with chronic suppurative inflammation complicating an underlying perianal fistula. No evidence of specific granulomas. No evidence of malignancy.
Recurrent perianal fistula.
Fibrotic fragment measures 8x6x4 mm.
Perianal lesion, Excision: