American Board of Pathology (ABPath) Practice Test 2026 - Free Pathology Exam Practice Questions and Study Guide

A hydrocele forms between the parietal and visceral layers of the tunica vaginalis, which is a pouch of serous membrane surrounding the testes. This condition arises when there is an accumulation of fluid in this space, often due to issues like inflammation, infection, or injury. The tunica vaginalis comprises two layers: the parietal layer lines the inner surface of the scrotum, while the visceral layer covers the testes themselves.

In a hydrocele, the imbalance between fluid production and absorption leads to a buildup, resulting in the characteristic swelling that can be palpated in the scrotal area. Understanding this anatomical relationship is crucial for anyone studying pathology or urology, as it provides insight into various conditions affecting the scrotal contents and their fluid dynamics.