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Pilomatricomas: the diagnostic value of ultrasound

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Abstract

Objective

The purpose of this study was to analyze statistically significant diagnostic factors for pilomatricoma on the basis of ultrasonographic features.

Methods

Sonographic images were retrospectively reviewed from 44 pilomatricomas, and from 43 control subjects with other subcutaneous tumors. Two radiologists determined the tumoral shape, margin, echotexture, echogenicity, posterior shadowing, posterior enhancement, hypoechoic rim, internal calcification, and vascularity.

Results

The reliable diagnostic factors for pilomatricoma were hypoechogenicity (P < 0.001), heterogenicity (P < 0.05), internal calcification (P < 0.001), hypoechoic rim (P < 0.001), and posterior shadowing (P < 0.001). Scattered dots were the most common patterns of internal calcification. A combination of hypoechogenicity, heterogenicity, internal calcification of scattered-dot pattern, and a hypoechoic rim was a statistically significant difference between the two groups (P < 0.001; odds ratio, 21).

Conclusions

The features of heterogeneous echotexture, internal echogenic foci in scattered-dot pattern, and a hypoechoic rim or posterior shadowing itself could be discriminative ultrasonographic criteria for differentiating pilomatricomas from other subcutaneous tumors.

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Authors and Affiliations

  1. Department of Diagnostic Radiology, College of Medicine, Inje University Pusan Paik Hospital, Busan, Korea, 614-735

    Hye Jung Choo, Sun Joo Lee, Myung Hee Kim, Eun Joo Lee, Jong Woon Song, Sook Jung Kim & Dong Wook Kim

  2. Department of Diagnostic Radiology, College of Medicine, Daegu Catholic University Medical Center, Daegu, Korea, 705-718

    Young Hwan Lee

  3. Department of Diagnostic Radiology, College of Medicine, Kyungpook National University Hospital, Daegu, Korea, 700-721

    Jae Hyuk Lee

  4. Department of Regional Clinical Trial Center, College of Medicine, Inje University Pusan Paik Hospital, Pusan, Korea, 614-735

    Minkyung Oh

Authors
  1. Hye Jung Choo
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  2. Sun Joo Lee
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  3. Young Hwan Lee
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  4. Jae Hyuk Lee
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  7. Eun Joo Lee
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  9. Sook Jung Kim
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Corresponding author

Correspondence to Sun Joo Lee.

Additional information

This work was supported by the 2005 Inje University Research Grant and Busan Paik Hospital Imaging Research Institute

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Choo, H.J., Lee, S.J., Lee, Y.H. et al. Pilomatricomas: the diagnostic value of ultrasound. Skeletal Radiol 39, 243–250 (2010). https://doi.org/10.1007/s00256-009-0678-x

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  • DOI: https://doi.org/10.1007/s00256-009-0678-x

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