Pilomatricoma (calcifying epithelioma): MDCT and MR imaging findings in 31 patients with radiological-pathological correlation

European Journal of Radiology
Kun-Ming YiYi Wang

Abstract

To describe the radiological characteristics of pilomatricomas on multi-detector computed tomography (MDCT) and magnetic resonance imaging (MRI), and to correlate the radiological findings and pathological features. The radiological findings of 41 pilomatricomas in 31 patients were retrospectively reviewed. The images were evaluated with emphasis on calcifications, reticular and ring-like appearances, enhancement patterns, circular target sign and peritumoral fat stranding, and correlating these with pathological features. Of the 31 lesions evaluated by MDCT, 25(80.6%) showed different patterns of calcifications which included single in 12(38.7%) lesions and multiple in 13(41.9%) lesions, but peritumoral fat stranding was observed only in 2(6.5%) lesions. MRI scans were performed in 11 patients with 21 lesions, homogeneous and inhomogeneous hypointensities on T1-weighted (T1W) images were showed respectively in 14(66.7%) and 7(33.3%) lesions. On fat-suppressed (FS) T2-weighted (T2W) images, a ring-like hyperintensity was observed in all 21(100%) lesions, reticular hyperintensity, circular target sign, peritumoral fat stranding and secondary anetoderma were seen in 7(33.3%), 4(19%), 4(19%) and 1(4.8%) lesions, respectively; and a...Continue Reading

Citations

Apr 26, 2020·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Ping HeQian Zhang

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