pseudomegacolon

pseu·do·meg·a·col·on

(sū'dō-meg'ă-kōl'ăn),
Enlargement of the distal colon with sluggish muscular function without the neurologic abnormalities of congenital megacolon (Hirschsprung disease).

pseudomegacolon

[-meg′əkō′lon]
a dilation of the colon in an adult patient.