Objective: The aim of this study was to evaluate the prevalence of intratesticular isolated anechoic areas (ITIAAs) in a large population, the seminal profile, and follow-up of patients with ITIAAs.
Methods: A total of 2223 patients underwent an andrologic examination and scrotal sonography. In the patients with ITIAAs, a hormonal profile was obtained, and screening for neoplastic markers was performed. In selected cases, standard semen analysis was performed. Finally, a longitudinal study was initiated.
Results: The prevalence of ITIAAs was 2.7% (59 of 2223 cases). In 48 of 59 cases (81.4%), a single ITIAA was found, whereas in the other 11 cases (18.6%), multiple ITIAAs were detected. Among the 59 patients with ITIAAs, we observed concomitant epididymal anechoic areas (EAAs) in 25 (42.4% of cases), specifically in 19 of 48 cases with a single ITIAA and 6 of 11 cases with multiple ITIAAs. Regarding age, 91.5% (54 of 59 cases) of the ITIAAs were found in patients older than 30 years; concomitant EAAs were present in about 50% of the cases. In patients younger than 30 years, no EAAs were detected. The seminal profile showed reduced sperm motility percentages in the patients with ITIAAs and concomitant EAAs. The longitudinal study did not show any significant variation of ITIAA patterns; all neoplastic markers remained negative.
Conclusions: An ITIAA is a pattern occasionally observed on sonography. The findings suggest that an ITIAA with a concomitant EAA could have a microtraumatic or inflammatory pathogenesis, whereas an ITIAA without a concomitant EAA in young patients could have a dysontogenetic origin.
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