1. Bladder Endometriosis: Deep Infiltrating Endometriosis or Adenomyosis?
Luigi Fedele, Elena Piazzola, Ricciarda Raffaelli, Stefano Bianchi 
Fertility and Sterility 
Volume 69, Issue 5, Pages (May 1998)
DOI: /S (98)00048-X

2. Fig. 1
Whole mounted section of bladder wall infiltrated by endometriosis. Endometriosis mainly infiltrates the muscular layer (stain, hematoxylin and eosin; original magnification, ×3.5).
Fertility and Sterility  , DOI: ( /S (98)00048-X)

3. Fig. 2
Endometrial glands surrounded by scant stroma infiltrate the bladder mucosa (stain, hematoxylin and eosin; original magnification, ×40).
Fertility and Sterility  , DOI: ( /S (98)00048-X)