title: Colonic vascular invasion as a possible route of extraintestinal cryptosporidiosis.
mesh_terms: D000818:Animals; D003106:Colon / Q000098:blood supply* / Q000469:parasitology; D003457:Cryptosporidiosis / Q000209:etiology*; D003458:Cryptosporidium / Q000302:isolation & purification; D006801:Humans; D008297:Male; D008875:Middle Aged