Incidence of testicular microlithiasis

Area of Science:

• Urology
• Radiology
• Andrology

Background:

• Polytopic intratubular calcifications of the testes, known as testicular microlithiasis, are uncommon in adults.
• Testicular microlithiasis presents as multiple echogenic specks on high-frequency sonography, distinct from normal testicular parenchyma.

Purpose of the Study:

• To retrospectively analyze the incidence and sonographic findings of testicular microlithiasis in an adult population.
• To investigate potential associations between testicular microlithiasis and other testicular pathologies or conditions.

Main Methods:

• Retrospective analysis of 1,710 adult testicular sonograms.
• Identification of characteristic sonographic patterns of testicular microlithiasis.
• Correlation of sonographic findings with clinical histories and histological confirmation where available.

Main Results:

• Bilateral testicular microlithiasis was identified in 11 cases (0.6%) out of 1,710 adults.
• Five cases (45%) were associated with testicular tumors.
• Other associations included radiotherapy history, hypogonadism, varicocele, and epididymal cysts.

Conclusions:

• Testicular microlithiasis, while rare, may have a higher incidence in adults than previously reported.
• The clinical relevance remains unclear, but associations with testicular tumors and other conditions warrant further investigation.