Journal of Veterinary Radiology and Ultrasound Flashcards
(14 cards)
- Bile Duct Abscess in a Pig
A 4-year-old pot-bellied pig presents for progressive icterus, anorexia, and abdominal discomfort. CT imaging reveals a large, rim-enhancing mass adjacent to the common bile duct with secondary biliary dilation. Which of the following is the most likely diagnosis?
A) Gallbladder mucocele
B) Common bile duct abscess
C) Biliary cystadenoma
B) Common bile duct abscess ✅
- Liver Lobe Torsion in a Rabbit
A 2-year-old neutered male rabbit presents acutely for lethargy and anorexia. CT imaging shows a hypoattenuating liver lobe with loss of contrast enhancement and peripheral rim enhancement. Hounsfield unit analysis is consistent with necrosis. What is the most appropriate diagnosis?
A) Hepatic abscess
B) Liver lobe torsion
C) Hepatic neoplasia
B) Liver lobe torsion
- Osteosarcoma in a Rabbit
A young crossbred rabbit presents with hind limb lameness. Radiographs reveal a permeative lesion with cortical destruction in the distal femur, and thoracic imaging shows multiple pulmonary nodules. What is the most appropriate diagnosis?
A) Osteomyelitis
B) Osteosarcoma with pulmonary metastasis
C) Fibrous dysplasia
B) Osteosarcoma with pulmonary metastasis
- Lagomorph Confluence Sinuum
During the CT evaluation of the head of a rabbit for suspected encephalitis, you observe considerable variation in the venous anatomy at the confluence sinuum. Which of the following statements is most accurate?
A) The confluence sinuum is consistent across individuals
B) Significant inter-individual variation in morphology is common
C) The confluence sinuum is not visible on contrast-enhanced CT
B) Significant inter-individual variation in morphology is common
- Cardiac Size in Ferrets
A middle-aged ferret presents for coughing and decreased activity. Thoracic radiographs show an enlarged cardiac silhouette. Which radiographic metric has been shown to be accurate for assessing cardiomegaly in ferrets?
A) Modified vertebral heart score
B) Thoracic width ratio
C) Sternal contact length
A) Modified vertebral heart score
- Adrenal Glands in Guinea Pigs
You are performing an abdominal ultrasound on a clinically healthy adult guinea pig. You identify elongated adrenal glands, with the left side being significantly larger. What is the most appropriate interpretation?
A) Adrenal asymmetry is a normal finding in guinea pigs
B) This indicates adrenal neoplasia
C) Adrenal glands are not reliably seen on ultrasound
A) Adrenal asymmetry is a normal finding in guinea pigs
- Rabbit Spleen on CT
During a CT study of a healthy rabbit, the spleen appears as a homogeneously enhancing, well-defined soft tissue structure. What is the correct interpretation?
A) Normal rabbit spleen
B) Splenic infarct
C) Splenic lymphoma
A) Normal rabbit spleen
- Small Intestinal Obstruction in Rabbits
A 3-year-old rabbit presents with severe anorexia and decreased fecal output. CT imaging shows a trichobezoar within a dilated intestinal segment, with oral segmental dilation and an abrupt transition point. What is the most likely diagnosis?
A) Intestinal volvulus
B) Small intestinal obstruction due to trichobezoar
C) Cecal impaction
B) Small intestinal obstruction due to trichobezoar
- Pituitary Gland CT in Rabbits
CT measurements of the pituitary gland in pet rabbits show a positive correlation with body weight. Which of the following is the most correct statement?
A) Pituitary size cannot be correlated with any physiologic parameter
B) Pituitary size increases with age but not weight
C) Pituitary size correlates positively with body weight
C) Pituitary size correlates positively with body weight
- Heart Morphometry in Guinea Pigs
A group of presumed healthy guinea pigs undergo thoracic radiography and anatomical dissection for heart morphometry. What was the study’s conclusion regarding heart size assessment?
A) Anatomical morphometric data supports radiographic assessment
B) Radiographs overestimate heart size
C) Cardiac size cannot be assessed reliably in guinea pigs
A) Anatomical morphometric data supports radiographic assessment
- Vertebral Heart Score in Rats
A colony of 124 healthy rats undergo thoracic radiography to establish normal cardiac dimensions. What scoring system was validated for this purpose?
A) Cardiothoracic ratio
B) Vertebral heart score
C) Sternal length index
B) Vertebral heart score
- Cysticercosis in a Rabbit
Ultrasonographic evaluation of a domestic rabbit with intermittent lethargy reveals multiple well-defined, anechoic mesenteric cysts with fine echogenic walls. What is the most likely diagnosis?
A) Peritoneal abscessation
B) Mesenteric cysticercosis
C) Mesenteric lymphadenopathy
B) Mesenteric cysticercosis
- Chordoma in a Ferret
A 6-year-old ferret presents with a non-painful, slowly growing mass at the base of the tail. Radiographs show an expansile lytic lesion of the caudal vertebra. Which diagnosis is most likely?
A) Caudal vertebral chordoma
B) Osteomyelitis
C) Osteosarcoma
A) Caudal vertebral chordoma
- Postoperative Gastric Rupture in Rabbit
A 2.5-year-old Flemish Giant rabbit is treated surgically for a left medial liver lobe torsion. Within hours post-op, it acutely deteriorates and dies. Necropsy reveals peritonitis and a large rent in the stomach wall. What is the most likely cause of death?
A) Postoperative sepsis
B) Acute gastric rupture
C) Thromboembolism
B) Acute gastric rupture
