Contrast and Radiological Procedures — MCQs

Q: Identify the radiographic sign seen in the IVP image given below:

Fish hook sign. ***Fish hook sign*** - This appearance is characteristic of a **ureter** that is displaced superiorly and medially by an **enlarged prostate** gland, often seen on an IVP. - The term describes the distal ureters taking an unusual hooked course as they enter the **bladder base** due to prostatic enlargement. *Adder head appearance* - This sign, also known as the **cobra head sign**, represents a **ureterocele** seen on IVP as a cystic dilatation of the distal ureter. - It appears as a round or oval lucency within the **bladder shadow** surrounded by a thin radiopaque rim of contrast. *Ball-on-tee sign* - This radiographic finding is associated with **osteonecrosis** of the femoral head, particularly in later stages. - It describes the fragmented and deformed femoral head sitting on the femoral neck, resembling a ball sitting on a tee. *Spoke-wheel sign* - This is a descriptive term often used in ultrasound or MRI, classically associated with **oncocytomas** of the kidney. - It refers to the central **stellate scar** with radiating vascularity, which is distinct from ureteral findings in IVP.

Contrast and Radiological Procedures — MCQs

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