male reproductive system disorder congenital megaprepuce MONDO:0700340 UMLS:C4316485 MEDGEN:940198 Orphanet:696897 CMP Rare congenital urological condition, subtype of buried penis, characterized by redundant inner prepuce, phimosis and deficient penile skin, leading to ballooning foreskin that can trap urine, and characterized by an abnormally large, ballooning foreskin that can trap urine, leading to ballooning during urination, difficulty emptying the bladder, and recurrent infections. https://github.com/monarch-initiative/mondo/issues/8881