Duplication of the duodenum presenting as an adrenal tumor.
D000293:Adolescent; D000310:Adrenal Gland Neoplasms / Q000175:diagnosis*; D003560:Cysts / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004386:Duodenum / Q000002:abnormalities*; D006801:Humans; D008297:Male