Abdominal and Pelvic Radiology — Flashcards

Flashcard 91: What type of nephrogram is seen in ADPKD?_____

Answer: Swiss cheese nephrogram

Flashcard 92: The _____ sign in hydatid disease is characterized by two layers/arches of air: one between the pericyst and ectocyst, and another within the endocyst.

Answer: Double-arch sign (Cumbo sign)

Extra: The presence of only a single thin crescent of air between the pericyst and ectocyst is known as the **crescent sign** (or Garnier sign). The **double-arch sign** (Cumbo sign) occurs when air is present in both the pericyst-ectocyst space and within the endocyst. These signs are typically seen in pulmonary hydatid disease.

Flashcard 93: A hypovascular mass in the liver (which may show slight arterial phase enhancement) on triple-phase contrast CT, in a patient with a history of colorectal cancer points to the diagnosis of _____

Answer: Liver metastasis

Flashcard 94: _____ is the preferred imaging technique for the diagnosis and characterization of cervicouterine (Müllerian duct) anomalies

Answer: MRI (Magnetic Resonance Imaging)

Flashcard 95: The _____ sign on barium study is seen in Ileocecal TB.

Answer: Fleischner

Flashcard 96: The most common method for diagnostic investigation in renal cell carcinoma is _____ of the abdomen and pelvis

Answer: computed tomography (CT) scan

Flashcard 97: IOC in testicular and Ovarian torsion is _____

Answer: doppler

Flashcard 98: Which classification for renal cysts is helpful in predicting a risk of malignancy and suggesting either follow up or treatment?_____

Answer: Bosniak classification

Flashcard 99: IVP in _____ may show a streaky appearance, representing the ectatic collecting ducts

Answer: Autosomal recessive polycystic kidney disease (ARPKD)

Extra: The 'sunburst' or streaky appearance on IVP in ARPKD is due to contrast filling the dilated radially-oriented collecting ducts. Note: Medullary sponge kidney (MSK) also shows linear streaks (paintbrush appearance) due to ectatic collecting ducts in the medullary pyramids.

Flashcard 100: ERCP study shows the classic double-duct sign in a patient suffering from _____

Answer: pancreatic carcinoma