荻野 和大¹, 薮 重宣¹, 清水 宏之², 脇田 重明², 鄭 昌彦³, 大田 豊承⁴

Kazuhiro OGINO¹, Shigenori YABU¹, Hiroyuki SHIMIZU², Shigeaki WAKITA², Masahiko TEI³, Toyotsugu OTA⁴

¹三菱京都病院臨床検査科, ²三菱京都病院整形外科, ³三菱京都病院腎臓内科, ⁴滋賀医科大学放射線科

¹Department of Clinical Laboratory, Mitsubishi Kyoto Hospital, ²Department of Orthopedic Surgery, Mitsubishi Kyoto Hospital, ³Department of Nephrology, Mitsubishi Kyoto Hospital, ⁴Departmeht of Radiology, Shiga University of Medical Science

キーワード : Renal failure, Tumoral calcinosis, Ultrasonography, X-ray CT

US findings from a case of so-called tumoral calcinosis of the gluteal region were correlated with appearance in CT and macroscopic images. Ultrasonography (US) showed this mass to be composed of three kinds of lesions: (1) cystic areas with a thin wall, (2) a cystic area with a thick wall in which a fluid-fluid level could be seen, and (3) a stone-like area. US was able to detect the fluid-fluid level within the cystic mass, this fluid being a characteristic CT finding in tumoral calcinosis. US could not, however, readily demonstrate fluid collection in the stone-like area. The combination of CT and US would thus appear useful for defining the detailed characteristics of tumoral calcinosis.