Localized colitis cystica profunda, showing evidence of proctitis as the pathogenetic mechanism, occurred in a 27-year-old man. Local excision of these midrectal lesions via posterior proctotomy is a satisfactory approach to their management. Awareness of the entity on the part of surgeons and pathologists will prevent needless radical surgery.
Ballas M, Nunez L, Miller EM. Localized Colitis Cystica Profunda. Arch Surg. 1971;103(3):406-408. doi:10.1001/archsurg.1971.01350090088019