FCPS Part 1 Radiology: Gastrointestinal & Genitourinary Imaging MCQs

Gastrointestinal and Genitourinary Radiology together make up nearly 500 questions in HighYield's FCPS Part 1 Radiology bank (247 and 244 questions respectively) — and much of that volume comes down to classic named signs candidates are expected to recognise on sight. Below is a sample set of GI and GU Radiology MCQs in the same one-line format the real exam uses.

Gastrointestinal Radiology

1. The "double bubble" sign on a neonatal abdominal X-ray is classically associated with:

• A) Pyloric stenosis
• B) Duodenal atresia ✅
• C) Meconium ileus
• D) Malrotation with volvulus

2. An "apple-core" (napkin-ring) lesion on barium enema is the classic appearance of:

• A) Diverticulitis
• B) Annular colorectal carcinoma ✅
• C) Ulcerative colitis
• D) Ischemic colitis

3. The "string sign" on small bowel imaging is most classically associated with:

• A) Ulcerative colitis
• B) Crohn's disease (terminal ileal stricture) ✅
• C) Diverticulosis
• D) Acute appendicitis

Genitourinary Radiology

4. A staghorn calculus filling the renal pelvis and calyces is most commonly composed of:

• A) Calcium oxalate
• B) Uric acid
• C) Struvite (magnesium ammonium phosphate) ✅
• D) Cystine

5. Complex cystic renal lesions are stratified for malignancy risk on CT using which classification system?

• A) TNM staging
• B) Bosniak classification ✅
• C) Fuhrman grading
• D) Gleason score

6. A "cobra head" (spring onion) appearance at the ureterovesical junction on IVU or CT urogram is classic for:

• A) Vesicoureteral reflux
• B) Ureterocele ✅
• C) Posterior urethral valves
• D) Ureteropelvic junction obstruction

Why Named Signs Deserve Dedicated Revision

GI and GU Radiology together are among the largest subspecialty areas in the FCPS Part 1 Radiology question pool, and much of that testing comes down to a finite list of classic named signs — double bubble, apple-core, string sign, staghorn calculus, Bosniak, cobra head — that either you recognise instantly or you don't. Drilling these in isolation, before mixing them with anatomy and physiology review, is one of the highest-yield uses of limited prep time.

HighYield's FCPS Part 1 Radiology QBank covers Gastrointestinal and Genitourinary Radiology alongside every other radiology subspecialty and the basic-sciences core, with every question explained. For the full picture of training and scope, see our FCPS Radiology Syllabus & Scope guide. Try the first 20 questions free, no sign-in required.