Dedifferentiated Liposarcoma Mimicking a Bosniak IV Cyst: A Rare Case of Radiographic Mimicry

Key Points

• To illustrate a rare case of dedifferentiated liposarcoma that radiographically resembles a Bosniak IV cyst.
• Detailed imaging analysis of the renal mass
• Comparative review of benign and malignant cystic lesions
• Histopathological examination confirmed diagnosis
• The imaging characteristics closely aligned with Bosniak IV cyst criteria
• Histopathology confirmed diagnosis of dedifferentiated liposarcoma
• This case emphasizes the importance of differential diagnosis in renal cysts