Höbarth K, Susani M, Szabo N, Kratzik C
Department of Urology, University of Vienna Medical School, Austria.
Urology. 1992 Nov;40(5):464-7. doi: 10.1016/0090-4295(92)90467-b.
In adults polytopic intratubular calcifications of the testes are rare. Known as testicular microlithiasis, they manifest themselves in a characteristic echo pattern on sonography with high-frequency transducers (5 to 10 MHz). This consists of multiple echogenic specks in an otherwise normal testicular parenchyma. In a retrospective analysis of 1,710 testicular sonograms of adults, bilateral intratesticular microliths were found in 11 cases (0.6%). In 5 of them, the microliths were associated with a testicular tumor. One patient with a tumor in the contralateral testis had undergone radiotherapy and another one presented with hypogonadism. Four patients with noncontributory histories presented with varicocele or epididymal cyst. Sonographic findings were confirmed histologically in 6 patients. Multiple intratubular calcifications were found in all of them. The pathogenesis of testicular microliths is still poorly understood. Their clinical relevance is unclear, but their incidence in adults appears to be higher than reported in the literature.
在成年人中，睾丸多发性管内钙化很少见。它们被称为睾丸微石症，在使用高频换能器（5至10兆赫）进行超声检查时，会呈现出特征性的回声模式。这表现为在原本正常的睾丸实质内有多个强回声斑点。在一项对1710例成年男性睾丸超声图的回顾性分析中，发现11例（0.6%）存在双侧睾丸微石症。其中5例微石症与睾丸肿瘤有关。1例对侧睾丸有肿瘤的患者曾接受过放疗，另1例伴有性腺功能减退。4例无相关病史的患者表现为精索静脉曲张或附睾囊肿。6例患者的超声检查结果经组织学证实。在所有这些患者中均发现了多发性管内钙化。睾丸微石症的发病机制仍知之甚少。它们的临床相关性尚不清楚，但在成年人中的发病率似乎高于文献报道。
