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The common ultrasonographic features of pilomatricoma

Title
The common ultrasonographic features of pilomatricoma
Authors
Hwang J.Y.Lee S.W.Lee S.M.
Ewha Authors
이선화황지영
SCOPUS Author ID
이선화scopus; 황지영scopus
Issue Date
2005
Journal Title
Journal of Ultrasound in Medicine
ISSN
0278-4297JCR Link
Citation
vol. 24, no. 10, pp. 1397 - 1402
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Objectives. The purpose of this series was to describe typical ultrasonographic features of 20 cases of pilomatricoma and to improve its diagnostic rate with the use of an ultrasonographic approach. Methods. For 20 pilomatricomas in 19 patients with preoperative ultrasonography from 1995 to 2004, we reviewed age, sex, symptoms, duration, referring clinician, and tumor sites. The ultrasonographic findings were retrospectively analyzed for tumor location, shape, size, margin, echo texture, echogenicity, presence, amount, and shape of calcification, presence of a hypoechoic rim, and Doppler flow pattern. Results. The mean age of the 19 patients was 6.9 years (range, 1-21 years), and the female-male ratio was 1.1:1. Patients had a painful palpable mass in 10 cases (50%). Nine lesions occurred in the neck, 5 in the cheek, 2 in the preauricular region, and 4 in the extremity. All tumors were located in the subcutaneous layer. The mean size of the tumors was 13.4 mm. Fourteen pilomatricomas (70%) appeared as well-defined oval masses. Tumors were heterogeneously hyperechoic in 80% of cases. All tumors had internal echogenic foci. A hypoechoic rim was seen in 17 cases (85%). Doppler flow signals were observed in the peripheral region in 14 cases (70%). A correct preoperative diagnosis was made in 33% on the basis of clinical findings and in 76% by ultrasonography. Conclusions. Diagnosis of pilomatricoma should be considered when a well-defined mass with inner echogenic foci and a peripheral hypoechoic rim or a completely echogenic mass with strong posterior acoustic shadowing in the subcutaneous layer of the head, neck, or extremity is found on ultrasonography. © 2005 by the American Institute of Ultrasound in Medicine.
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의학전문대학원 > 의학과 > Journal papers
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