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Chromophobe Renal Cell Carcinoma With Multimodal Imaging Features: A Case Report
Jiale Hu1, Feifei Song1, Shufang Xiang1
1Department of Ultrasound First Affiliated Hospital of Yangtze University Jingzhou China.
Introduction:
Chromophobe renal cell carcinoma (chRCC) is a rare renal cell carcinoma subtype with nonspecific imaging features, making preoperative diagnosis challenging. We present a pathologically confirmed case highlighting its multimodal imaging characteristics.
Methods:
A 51-year-old woman with an incidentally detected left renal mass underwent contrast-enhanced CT, MRI, contrast-enhanced ultrasound (CEUS), ultrasound-guided biopsy and subsequent surgical resection with histopathological and immunohistochemical evaluation.
Results:
CT and MRI demonstrated a solid left renal mass with enhancement persistently lower than that of the renal cortex. CEUS showed delayed iso-enhancement followed by rapid washout, consistent with a slow wash-in and fast wash-out pattern. Biopsy and postoperative histopathology with immunohistochemistry confirmed chRCC.
Discussion:
The concordant hypovascular findings across CEUS, CT and MRI supported suspicion of a non-clear cell RCC subtype. CEUS provided complementary real-time information on tumour perfusion.
Conclusion:
Combining CEUS with CT and MRI may improve the preoperative characterisation of renal masses and diagnostic confidence in suspected chRCC.
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