Adenomatoid Tumor of Testis

Waqas Amin,Anil V Parwani

doi:10.4137/cpath.s3091

Abstract

Adenomatoid tumors are responsible for 30% of all paratesticular masses. These are usually asymptomatic, slow growing masses. They are benign tumors comprising of cords and tubules of cuboidal to columnar cells with vacuolated cytoplasm and fibrous stroma. They are considered to be of mesothelial origin supported by histochemical studies and genetic analysis of Wilms tumor 1 gene expression. Excision biopsy is both diagnostic and therapeutic procedure. The main clinical consideration is accurate diagnosis preventing unnecessary orchiectomy. Diagnostic studies include serum tumor markers (negative alpha fetoprotein, beta HCG, LDH) ultrasonography (hypoechoic and homogenous appearance) and frozen section.

Highlights

Adenomatoid tumors are rare and benign tumors of the male and female genital tract. They are known by the pseudonym of “benign mesothelioma” of the intrascrotal tumors but they usually present as extra testicular masses, they are the most common paratesticular neoplasm and account for approximately 30% of all paratesticular masses.[1,2]
They occur as an intratesticular mass. The histiogenesis of this rare neoplasm has been a source of controversy and it is generally agreed that they are of mesothelial origin
Adenomatoid tumor of testis gadolinium-enhanced-gradient echo T1 weighted images are captured in axial plane and followed 30, 60 and 90 seconds after contrast administration and delayed gadolinium—enhances gradient echo T1-weighted images in sagittal and axial planes.Alens shaped mass is seen on unenhanced images originating from the testicular surface, the mass is somewhat hypointense in comparison with the testicular parenchyma

Summary

Introduction

Adenomatoid tumors are rare and benign tumors of the male and female genital tract. They are known by the pseudonym of “benign mesothelioma” of the intrascrotal tumors but they usually present as extra testicular masses, they are the most common paratesticular neoplasm and account for approximately 30% of all paratesticular masses.[1,2] Occasionally they occur as an intratesticular mass. They may be found in the tunica vaginalis and rete testis.[2] Adenomatoid tumors are the most common paratesticular neoplasms and account for approximately 30% of all paratesticular masses and unusual locations include the adrenal gland, pleura and lymph nodes resulting in diagnostic difficulties.[1,4] On gross appearance these tumors are usually small, solid, firm, grayish white to tan and poorly to well circumscribed masses.

Results

Conclusion