Abdominal and Pelvic Radiology — Flashcards

Flashcard 81: Acute _____ shows a dense persistent nephrogram.

Answer: urinary obstruction

Flashcard 82: _____ refers to the transient transverse bands seen in the mid and lower oesophagus on a double contrast barium swallow

Answer: Feline oesophagus

Flashcard 83: Investigation of choice for an abdominal desmoid tumor is _____

Answer: MRI

Flashcard 84: Sawtooth appearance on barium enema is seen in colonic _____

Answer: diverticulosis

Flashcard 85: What is the percentage malignancy rate of Bosniak 2F?_____

Answer: 5%

Flashcard 86: Northern exposure sign represents dilated sigmoid colon that extends cranial to the transverse colon, seen in _____ on a supine abdominal x-ray

Answer: sigmoid volvulus

Flashcard 87: Which investigation gives the best impression of collection in a CBD injury?_____

Answer: CECT

Flashcard 88: Investigation of choice in detecting congenital uterine anomalies is _____

Answer: MRI

Flashcard 89: 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 90: The gold standard for the diagnosis of an acute arterial occlusive disease (mesenteric ischemia) is _____

Answer: angiography