Qaiser Sehrish, Ahsan Amna, Khaliq M, Ghafoor Abdul
Acute and General Medicine, University Hospitals Birmingham, Birmingham, GBR.
Cardiology, Queen Elizabeth Hospital Birmingham, Birmingham, GBR.
Cureus. 2025 Jun 29;17(6):e86952. doi: 10.7759/cureus.86952. eCollection 2025 Jun.
Background When abdominal CT scans are performed for reasons other than problems with the urinary tract, renal cysts are frequently seen. The objective of this study was to determine how common renal cysts are during CT imaging for other medical reasons in adult patients. Methods This study was conducted as a prospective cross-sectional study with 120 adults who were having abdominal CT scans for conditions such as those of the intestines, liver, or blood vessels. People with a history of kidney disease were not included in the study. All cysts were measured based on their number, size, diameter, and classification using Bosniak standards. Statistical Package for the Social Sciences (SPSS) v26.0 and OpenEpi v3.0.0 were used for performing statistical analyses via chi-square and t-tests with p-value < 0.05. Results Incidental renal cysts were present in 37 (30.8%) of the 120 (100%) patients. About three-quarters (28; 77.2%) of the cysts were simple (Bosniak I), with an average size of 22.4 ± 9.1 mm, and most (31; 82.6%) appeared on only one side. There were 6 (16.3%) minimally complex cysts (Bosniak II) that were a little larger than others, with an average size of 29.5 ± 10.4 mm. The most complex cysts (Bosniak IIF/III) represented 2 (6.5%) of the cases and had the largest average size of 33.2 ± 12.7 mm. In addition, patients with cysts were older on average, at 64.8 ± 11.2 years, compared to those without cysts, whose presence of renal cysts was strongly connected to being male (24; 65.2%) vs. 38 (45.7%), having hypertension (23; 63.0%) vs. 31 (37.5%) and having a history of smoking (17; 44.6%) vs. 26 (31.3%). All patients with Bosniak IIF/III cysts were told to have follow-up imaging, but those with Bosniak I cysts didn't need any follow-up. Conclusion Most of these cysts found in the kidney are benign and often occur in the elderly. When we apply the Bosniak classification, we reduce unnecessary checks and tests for the patient. Clinicians ought to weigh each case by risk to avoid carrying out numerous tests on normal cysts.
当因非泌尿系统问题进行腹部CT扫描时，经常会发现肾囊肿。本研究的目的是确定在因其他医疗原因对成年患者进行CT成像检查期间肾囊肿的常见程度。
本研究作为一项前瞻性横断面研究，对120名因肠道、肝脏或血管等疾病接受腹部CT扫描的成年人进行。有肾脏疾病史的人不包括在研究中。所有囊肿均根据其数量、大小、直径，并使用博斯尼亚克标准进行分类测量。使用社会科学统计软件包（SPSS）v26.0和OpenEpi v3.0.0通过卡方检验和t检验进行统计分析，p值<0.05。
120名（100%）患者中有37名（30.8%）存在偶然发现的肾囊肿。约四分之三（28个；77.2%）的囊肿为单纯性（博斯尼亚克I类），平均大小为22.4±9.1毫米，且大多数（31个；82.6%）仅出现在一侧。有6个（16.3%）复杂性最低的囊肿（博斯尼亚克II类），比其他囊肿稍大，平均大小为29.5±10.4毫米。最复杂的囊肿（博斯尼亚克IIF/III类）占病例的2个（6.5%），平均大小最大，为33.2±12.7毫米。此外，有囊肿的患者平均年龄较大，为64.8±11.2岁，而无囊肿患者中，肾囊肿的存在与男性（24名；65.2%）vs.38名（45.7%）、患有高血压（23名；63.0%）vs.31名（37.5%）以及有吸烟史（17名；
