Adenomatoid tumour of the epididymis
Adenomatoid tumor is a benign mesothelial tumor, which arises from the lining of organs. It generally presents in the genital tract, in regions such as the testis and  epididymis. It is the second most common extratesticular scrotal mass, after lipoma, and accounts for 30% of these masses.  It also has been found in the  pancreas. 
In the female, it has been found in the body of the
uterus and the fallopian tube. 
References [ edit ]
^ Williams SB, Han M, Jones R, Andrawis R (2004). "Adenomatoid tumor of the testes". Urology. 63 (4): 779–81. doi: 10.1016/j.urology.2003.11.035. PMID 15072910.
^ "Adenomatoid tumor of the epididymis" . Retrieved . 2007-12-15
^ Cassidy, Fiona Hughes; Ishioka, Kevin M.; McMahon, Colm J.; Chu, Pauline; Sakamoto, Kyoko; Lee, Karen S.; Aganovic, Lejla (May 2010). "MR Imaging of Scrotal Tumors and Pseudotumors". RadioGraphics. 30 (3): 665–683. doi: 10.1148/rg.303095049.
^ Overstreet K, Wixom C, Shabaik A, Bouvet M, Herndier B (Jun 2003). "Adenomatoid tumor of the pancreas: a case report with comparison of histology and aspiration cytology". Mod Pathol. 16 (6): 613–7. doi: 10.1097/01.MP.0000072803.37527.C8. PMID 12808068.
^ Huang CC, Chang DY, Chen CK, Chou YY, Huang SC (Sep 1995). "Adenomatoid tumor of the female genital tract". Int J Gynaecol Obstet. 50 (3): 275–80. doi: 10.1016/0020-7292(95)02453-J. PMID 8543111.