Central Stellated Scar Sign:: Classic Imaging Finding of Renal Oncocytoma with Radiopathological Correlation

• Juan Carlos González Matos ^[1] ; Juan Jesús Gómez-Herrera ^[2] ; María Pilar Ortega de la Obra ^[1]
  1. [1] Complejo Asistencial de Segovia

     Complejo Asistencial de Segovia

     Segovia, España

     
  2. [2] Department of Radiology, Hospital Universitario Nuestra Señora del Prado, Talavera de la Reina, Toledo, Spain
• Localización: Archivos españoles de urología, ISSN 0004-0614, Tomo 75, Nº. 5, 2022, págs. 480-481
• Idioma: inglés
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• Resumen

  • Oncocytomas are benign tumors, with the classic stellate scar found in up to a third of cases, mainly in large ones. We present the case of a 69-year-old man with a palpable, mobile, and painless mass on the right flank, where abdominal ultrasound and abdominal computed tomography detected the presence of a solid right kidney lesion with a central stellate area in the sinus.

    Postoperative histological analysis confirmed the presence of oncocytoma with a central stellate scar. Biopsy may not be useful to distinguish this entity from renal carcinoma, surgery being necessary for definitive confirmation of the diagnosis of oncocytoma.