Congenital dilation of the urethra.


/meg·a·lo·ure·thra/ (-u-re´thrah) congenital dilation of the urethra, due usually to abnormal development of the corpus spongiosum but occasionally to some abnormality of the corpus cavernosum.


Diffuse dilation of the penile (anterior) urethra due to nondevelopment of erectile tissue of the penis; it is not associated with distal obstruction.
References in periodicals archive ?
Congenital absence of corpora cavernosum on a patient with megalourethra
Contraindications to neonatal circumcision include prematurity, family history of bleeding disorder, hypospadias/epispadias, webbed penis, micropenis, megalourethra, ambiguous genitalia, bilateral large hydroceles, buried/concealed penis, and congenital penile lymphedema.