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Ossifying renal tumor of infancy: findings at ultrasound, CT and MRI

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Abstract

A 4-month-old boy presented with persistent gross hematuria. At ultrasonography, a 3.5-cm echogenic mass with posterior shadowing and tumor vascularity was detected within the right renal pelvis. Precontrast CT showed a slightly hyperattenuating mass in the renal pelvis. At MRI the mass was heterogeneously hypointense on T2-weighted images and isointense on T1-weighted images. Contrast-enhanced CT and MRI both revealed peripheral enhancement of the mass. A histological diagnosis of ossifying renal tumor of infancy was made after open pyelostomy and tumor enucleation. We suggest that ossifying renal tumor of infancy should be considered when a mass with posterior acoustic shadowing and tumor vascularity on US, hyperattenuation on precontrast CT and hypointensity on T2-weighted MRI is seen within the renal pelvis of an infant with hematuria.

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Authors and Affiliations

  1. Department of Radiology, Seoul National University College of Medicine, 28 Yongon-Dong, Jongno-Gu, Seoul, 110-744, Republic of Korea

    Sang Hwan Lee, Young Hun Choi, Woo Sun Kim & Jung-Eun Cheon

  2. The Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea

    Sang Hwan Lee, Young Hun Choi, Woo Sun Kim & Jung-Eun Cheon

  3. Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea

    Kyung Chul Moon

Authors
  1. Sang Hwan Lee
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  2. Young Hun Choi
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  3. Woo Sun Kim
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  4. Jung-Eun Cheon
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  5. Kyung Chul Moon
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Correspondence to Woo Sun Kim.

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Lee, S.H., Choi, Y.H., Kim, W.S. et al. Ossifying renal tumor of infancy: findings at ultrasound, CT and MRI. Pediatr Radiol 44, 625–628 (2014). https://doi.org/10.1007/s00247-013-2855-2

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  • DOI: https://doi.org/10.1007/s00247-013-2855-2

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