Testis & paratestis
Nonneoplastic lesions
Rete testis adenomatous hyperplasia
Author: Rafael E. Jimenez, M.D., M.H.A.
Last author update: 1 March 2012
Last staff update: 12 April 2021
Copyright: 2003-2025, PathologyOutlines.com, Inc.
PubMed Search: Adenomatous hyperplasia[title] rete testis
Table of Contents
Definition / general | Gross description | Microscopic (histologic) description | Positive stains | Negative stains | Differential diagnosisCite this page: Jimenez R. Rete testis adenomatous hyperplasia. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/testisreteadenomatoushyper.html. Accessed January 18th, 2025.
Definition / general
- Uncommon benign lesion; usually an incidental finding
- May be similar to papillary adenoma of rete testis
- Mean age 59 years, range 30 - 74 years
- References: Am J Surg Pathol 1991;15:350, Am J Surg Pathol 1991;15:66
Gross description
- May be solid / cystic mass in testicular hilus; usually small, incidental microscopic finding
Microscopic (histologic) description
- Tubulopapillary or cribriform proliferations of bland epithelium that projects into dilated channels of rete testis
- Associated with hyaline globules (represent proteins absorbed from lumen by epithelial lining cells)
Differential diagnosis
