Detection and monitoring of simple renal cysts with computed tomography.
We retrospectively investigated the incidence of simple renal cysts in 1,288 healthy subjects, and monitored the growth and formation of such cysts in 39 subjects using abdominal computed tomography (CT). Simple renal cysts were detected in 138 (10.7%) of the 1,288 subjects. The incidence of simple renal cysts increased significantly with the subject's age (p < 0.001). We found that cyst size increased significantly with age and over time on serial CT studies (p < 0.001). Exoparenchymal cysts, comprising greater than 50% of extraparenchymal lesions, were significantly larger than endoparenchymal cysts (p < 0.001), and showed a greater tendency to increase in size over time.
Tsugaya
M
M
Department of Urology, Nagoya City University Medical School, Japan.
Kajita
A
A
Hayashi
Y
Y
Okamura
T
T
Kohri
K
K
Kato
Y
Y
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D003560:Cysts / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D015994:Incidence; D007674:Kidney Diseases / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D017678:Sex Distribution; D014057:Tomography, X-Ray Computed