title: Megalourethra.
abstract: Megalourethra is a rare congenital malformation characterized by dilatation of the penile urethra. We review 6 previously unreported cases and 35 cases reported in the literature. The distinction between scaphoid and fusiform megalourethra seems arbitrary, and the disorder is better viewed as a spectrum rather than as 2 distinct entities. Significant concomitant upper urinary tract abnormalities may be present in any patient with megalourethra, a fact that should lead to the routine investigation of the upper urinary tract in all patients with this developmental anomaly.
mesh_terms: D000015:Abnormalities, Multiple / Q000473:pathology*; D004108:Dilatation, Pathologic / Q000473:pathology; D006801:Humans; D006869:Hydronephrosis / Q000473:pathology; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010413:Penis / Q000002:abnormalities*; D011535:Prune Belly Syndrome / Q000473:pathology*; D014521:Urethra / Q000002:abnormalities* / Q000601:surgery; D014551:Urinary Tract / Q000002:abnormalities*