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. 2024 Jun 20;49(12):4521–4530. doi: 10.1007/s00261-024-04366-w

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© The Author(s) 2024

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Fig. 4 — a Noncontrast CT shows an indeterminate lesion arising from the lower pole left kidney (arrow). Grayscale ultrasound b reveals a well-circumscribed cystic lesion with echogenic debris or soft tissue (arrow). CEUS c confirms no enhancement of the debris (arrow), consistent with a hemorrhagic cyst. d Illustration of a hemorrhagic cyst with internal debris (arrow)