Endometriosis of the urinary bladder

This paper describes two cases of women with endometriosis localized to the urinary bladder, including diagnostic workup with cystoscopy and imaging and subsequent management decisions involving transurethral resection in one case and surgical resection plus LH-RH analog therapy in the other. In the first patient, small bladder lesions were resected and danazol was given, after which a solitary lesion regressed spontaneously and follow-up cystoscopy later showed no findings; the second patient had bladder-wall involvement without urothel communication and underwent resection of the posterior bladder wall after medical therapy did not lead to regression. The authors explicitly note that bladder endometriosis is extremely rare and therefore diagnostically challenging due to limited urologic experience, and that most described locations are not easily captured because multiple implants can exist. This paper is centrally about endometriosis — specifically endometriosis of the urinary bladder and bladder-wall–isolated detrusor involvement.

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