Anatomopathological lesions of bladder endometriosis are heterogeneous.
OBJECTIVE
To present the anatomopathological characteristics of deep bladder endometriosis.


METHODS
Descriptive anatomapathological study.


METHODS
A university hospital department of gynecological surgery.


METHODS
Eleven consecutive patients complaining of pelvic pain and painful urinary functional symptoms.


METHODS
Laparoscopic partial cystectomy.


METHODS
Macroscopic and microscopic characteristics of deep bladder endometriosis lesions.


RESULTS
Deep bladder endometriosis lesions were extremely heterogeneous, not only in any one patient but also from one patient to another. Bladder muscularis propria presented three aspects: [1] hyperplasia of the fibromuscular tissue (4/11); [2] simple dissociation of the smooth muscle fiber bundles with no veritable "disorganization" (4/11); [3] simple thickening of the interstitial collagen network, or sclerosis (3/11). A histological adenomyotic nodule aspect was only observed in one patient (9%).


CONCLUSIONS
Bladder endometriosis is an enigmatic disease. No hypothesis can be proposed as a single explanation for its pathogenesis.
Chapron
Charles
C
Assistance Publique, Hôpitaux de Paris (AP-HP), Service de Chirurgie Gynécologique, Clinique Universitaire Baudelocque, Paris, France. charles.chapron@cch.ap-hop-paris.fr
Boucher
Eric
E
Fauconnier
Arnaud
A
Vieira
Marco
M
Dubuisson
Jean-Bernard
JB
Vacher-Lavenu
Marie-Cécile
MC
D004715:Endometriosis / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D006965:Hyperplasia; D001745:Urinary Bladder Diseases / Q000473:pathology* / Q000601:surgery