|Description:||This image depicts the penis of a male patient, which displayed pathologic changes on the preputial skin, i.e., foreskin, which was determined to be balanitis xerotica obliterans (BXO). Note the erythematous, thickened appearance of the glans penis exterior, and the inclusion of the prepuce in the cutaneous pathology.|
Commonly occurring on the glans penis and foreskin, as was the case here, BXO involves the evolution of white patches of atrophic skin, and a ring of indurated tissue surrounding the urethral meatus, which could become a stricture that can cause urinary retention with eventual damage to the bladder and kidneys.
In general, the cause of BXO is uncertain, and has ranged from human papilloma virus (HPV), spirochetes, mycobacteria, and bacterial balanitis. Autoimmune disorders may also be associated with this condition.