Goede J, Hack W W M, van der Voort-Doedens L M, Sijstermans K, Pierik F H
Department of Pediatrics, Medical Center Alkmaar, Alkmaar and Netherlands Organization for Applied Scientific Research TNO, Delft (FHP), The Netherlands.
J Urol. 2009 Oct;182(4):1516-20. doi: 10.1016/j.juro.2009.06.065. Epub 2009 Aug 15.
We assessed the prevalence of testicular microlithiasis via ultrasound in asymptomatic males 0 to 19 years old.
We studied only patients with 2 scrotal testes at birth and at examination. We excluded boys with a history of undescended testis, hydrocele, varicocele and syndromes associated with testicular microlithiasis. To assess for testicular microlithiasis, we scanned the scrotum ultrasonographically by recording transverse and longitudinal images of each testis. Classic testicular microlithiasis was defined as 5 or more echogenic foci in either or both testes. Boys with fewer than 5 microliths (but with at least 1) were deemed to have limited testicular microlithiasis.
We examined 694 asymptomatic boys between October 2007 and July 2008, of whom 670 participated in the study. Classic testicular microlithiasis was present in 16 boys (2.4%) and limited testicular microlithiasis in 12 (1.8%), yielding a total prevalence of 4.2%. Classic testicular microlithiasis was found in 1 patient younger than 6 years, 8 boys 6 to 12 years old and 7 boys older than 12 years. There was a significant difference in prevalence among the 3 age groups (p = 0.032). Testicular malignancies were not found in any patient. Of the 24 boys excluded from the study testicular microlithiasis was seen in 4.
The prevalence of classic testicular microlithiasis in asymptomatic boys is 2.4% and increases with age.
我们通过超声评估了0至19岁无症状男性睾丸微结石症的患病率。
我们仅研究出生时及检查时双侧阴囊内均有睾丸的患者。我们排除了有隐睾、鞘膜积液、精索静脉曲张病史以及与睾丸微结石症相关综合征的男孩。为评估睾丸微结石症，我们通过记录每个睾丸的横向和纵向图像对阴囊进行超声扫描。典型睾丸微结石症定义为一侧或双侧睾丸中有5个或更多的强回声灶。微结石少于5个（但至少有1个）的男孩被认为患有局限性睾丸微结石症。
我们在2007年10月至2008年7月期间检查了694名无症状男孩，其中670名参与了研究。16名男孩（2.4%）存在典型睾丸微结石症，12名（1.8%）存在局限性睾丸微结石症，总患病率为4.2%。在1名6岁以下患者、8名6至12岁男孩和7名12岁以上男孩中发现了典型睾丸微结石症。3个年龄组的患病率存在显著差异（p = 0.032）。所有患者均未发现睾丸恶性肿瘤。在被排除研究的24名男孩中，有4名发现有睾丸微结石症。
无症状男孩中典型睾丸微结石症的患病率为2.4%，且随年龄增长而增加。
