Practice targeted AMC-style multiple-choice questions on computed tomography (CT).
A 68-year-old male presents to the emergency department complaining of abdominal pain, distension, and obstipation for the past 3 days. He reports a history of multiple abdominal surgeries for adhesions. His vital signs are: HR 110 bpm, BP 110/70 mmHg, RR 22 breaths/min, SpO2 97% on room air, and temperature 37.8°C. Physical examination reveals a distended abdomen with high-pitched bowel sounds. An upright abdominal X-ray is performed, as shown. Given the clinical context and the findings on the imaging, what is the MOST appropriate next imaging investigation to guide management?
A 68-year-old man with a history of smoking, hypertension, and dyslipidaemia presents for investigation of intermittent flank pain. Physical examination is unremarkable. Routine blood tests are normal. A CT scan of the abdomen is performed. Considering the findings demonstrated in the image, what is the most appropriate next step in the management of this patient?
A 35-year-old presents with colicky abdominal pain and vomiting. An X-ray is performed. What is the MOST likely finding on subsequent CT imaging?
A 70-year-old male with a history of hypertension and smoking undergoes a CT scan for investigation of chronic back pain. He denies any abdominal pain, pulsatile mass, or leg ischaemia. His blood pressure is 130/80 mmHg, pulse 72 bpm. The image provided is an axial view from this scan. Based on this finding, what is the most appropriate next step in his management?
A 68-year-old man presents to the emergency department with a 2-day history of worsening left lower quadrant abdominal pain, associated with subjective fever, chills, and nausea. He reports some recent constipation. On examination, his temperature is 38.5°C, pulse 95 bpm, BP 130/80 mmHg. Abdominal examination reveals tenderness and guarding in the left iliac fossa. Bowel sounds are reduced. Blood tests show a white cell count of 15 x 10^9/L (neutrophils 85%) and C-reactive protein of 120 mg/L. Urea, electrolytes, and creatinine are within normal limits. A CT scan of the abdomen and pelvis is performed (image provided). Considering the clinical presentation and the findings demonstrated in the provided image, which of the following represents the most appropriate initial management strategy?
A 4-year-old boy presents with left flank pain and a palpable abdominal mass. His mother reports decreased appetite and recent weight loss. A CT scan of the abdomen is performed (image attached). What is the MOST likely diagnosis?
A 62-year-old male presents to the emergency department complaining of left lower quadrant abdominal pain for the past three days. He describes the pain as constant and sharp, rating it an 8 out of 10. He also reports nausea, decreased appetite, and subjective fevers. His past medical history is significant for hypertension and hyperlipidemia, both well-controlled with medications. He denies any recent travel or sick contacts. On physical examination, his abdomen is tender to palpation in the left lower quadrant with guarding. Bowel sounds are present but diminished. The remainder of his examination is unremarkable. His vital signs are: Temperature 38.2°C, Heart Rate 98 bpm, Blood Pressure 140/90 mmHg, Respiratory Rate 18 breaths per minute, and Oxygen Saturation 98% on room air. Laboratory results show a white blood cell count of 14,000/µL with a neutrophilic predominance. A CT scan of the abdomen and pelvis with intravenous contrast is performed, and a representative image is shown. Assuming the patient has no allergies, what is the MOST appropriate initial management strategy?
A 63-year-old man presents with increasing shortness of breath and epigastric discomfort, particularly after meals. He has a history of GERD. Physical examination reveals decreased breath sounds at the left lung base. An axial CT image is shown. Considering the clinical presentation and imaging findings, what is the MOST appropriate next step in management?
A 58-year-old woman with poorly controlled diabetes presents with severe RUQ pain, fever, and vomiting for 3 days. The provided CT was performed. What is the MOST appropriate initial management strategy?
A 78-year-old male presents to the emergency department with a 6-hour history of sudden onset, severe pain and swelling in his right groin. He reports nausea but no vomiting. On examination, there is a tender, firm, non-reducible lump in the right inguinal region. Bowel sounds are present. Vitals are stable: BP 130/80, HR 75, Temp 36.8°C. A CT scan of the pelvis is performed, shown in the image. Based on the clinical presentation and the findings demonstrated in the image, what is the most appropriate immediate next step in the management of this patient?
A 2-year-old with a palpable abdominal mass and periorbital ecchymoses has the shown CT. What is the MOST likely diagnosis?
A 68-year-old woman with a history of hypertension and hyperlipidemia presents to the emergency department with a sudden onset of left-sided hemianopia and mild right-sided weakness. Her symptoms began approximately 4 hours prior to arrival. Initial neurological examination reveals intact language function and no cognitive deficits. A CT angiogram was performed, followed by endovascular coiling. The provided image shows a post-operative angiogram. Despite the intervention, the patient's hemianopia persists, and her weakness has slightly worsened. What is the MOST appropriate next step in the management of this patient?
A 72-year-old male with a history of hypertension presents with a sudden onset of right-sided weakness and expressive aphasia. He underwent endovascular coiling for a PCA aneurysm 1 year ago. The attached image was obtained. What is the MOST likely cause of his current presentation?
A 55-year-old woman presents with 24 hours of severe right upper quadrant pain, fever, and nausea. Examination reveals RUQ tenderness and a positive Murphy's sign. Vitals: T 38.5°C, HR 105, BP 130/80, RR 18, SpO2 98% RA. Labs: WCC 16, CRP 120, LFTs normal. An urgent abdominal CT is performed. Considering the clinical presentation and the findings on the provided imaging, what is the most appropriate definitive management strategy for this patient?
A 65-year-old man presents with 2 days of left lower quadrant abdominal pain, fever, and nausea. On examination, he is afebrile, haemodynamically stable, with localised tenderness in the LLQ. Blood tests show a WCC of 14.5. A CT scan of the abdomen and pelvis is performed. Considering the clinical presentation and the findings demonstrated in the image, what is the most appropriate initial management plan?
A 58-year-old male with cirrhosis presents for routine surveillance. His AFP is elevated. A CT scan with contrast is performed (image attached). What is the MOST appropriate next step to determine definitive management?
A 28-year-old male presents with a persistent cough and fatigue. A PET-CT scan was performed. What is the MOST likely diagnosis?
A 28-year-old female presents to the ED with acute onset right lower quadrant pain. She reports nausea and vomiting. Her last menstrual period was 6 weeks ago, and she denies any vaginal bleeding. She is hemodynamically stable. A CT scan of the abdomen and pelvis is performed, with a relevant image shown. Considering the clinical presentation and the imaging findings, what is the MOST appropriate next step in the management of this patient?
A 63-year-old male presents with postprandial vomiting and persistent retrosternal discomfort. He reports feeling full quickly after eating only small amounts. An abdominal CT scan is performed, the axial view is shown. What is the MOST likely underlying mechanism contributing to this patient's symptoms?
A 72-year-old man presents with sudden onset of severe right groin pain and a firm, non-reducible bulge. He reports mild nausea but denies vomiting or change in bowel habit. Vital signs are stable. A CT scan of the pelvis is performed, as shown. Considering the clinical context and the imaging findings, what is the most appropriate immediate management?
A 28-year-old female presents to the ED with acute onset right lower quadrant pain. She reports nausea and vomiting. Her last menstrual period was 6 weeks ago, and she denies any vaginal bleeding. She is hemodynamically stable. A CT scan of the abdomen and pelvis is performed, with a relevant image shown. What is the MOST appropriate next step in the management of this patient?
A 4-year-old presents with abdominal distension and back pain for 2 months. Exam reveals a firm, fixed abdominal mass. Vitals are normal. An abdominal CT is performed (axial view shown). Which lab finding would MOST strongly support the suspected diagnosis?
A 32-year-old male with a history of Crohn's disease presents with worsening abdominal pain, diarrhea, and a low-grade fever. He reports that his symptoms have been progressively worsening over the past few weeks despite being compliant with his prescribed mesalamine. A CT scan of the abdomen and pelvis is performed, as shown. What is the MOST appropriate next step in management?
A 58-year-old male presents with left lower quadrant abdominal pain and a low-grade fever. The provided image was obtained. What is the most likely diagnosis?
A 62-year-old male presents with a 3-month history of worsening upper abdominal pain, significant fatigue, and a 10 kg unintentional weight loss. His medical history includes long-standing peptic ulcer disease managed with proton pump inhibitors. On examination, he has mild hepatomegaly and trace ascites. Initial blood tests show elevated alkaline phosphatase and gamma-glutamyl transferase, with normal serum bilirubin and transaminases. A contrast-enhanced CT scan of the abdomen and pelvis is performed, and representative images are provided. Considering the clinical presentation and the findings demonstrated on the imaging, which of the following represents the MOST appropriate immediate next step in the management of this patient?
A 63-year-old man presents to the ED with increasing shortness of breath and epigastric discomfort, particularly after meals. He has a history of well-controlled hypertension and takes no regular medications. Physical examination reveals decreased breath sounds at the left lung base. An abdominal CT scan is performed, the axial view is shown. What is the MOST appropriate next step in management?
A 3-year-old presents with abdominal distension and vague pain. Vitals are stable. An abdominal CT is performed (image attached). Elevated levels of HVA and VMA are noted in the urine. What is the MOST likely origin of the primary lesion?
A 68-year-old male presents with fatigue, weight loss, and vague abdominal discomfort. His past medical history includes a recent diagnosis of gastric mixed adenoneuroendocrine carcinoma (MANEC). A CT scan of the abdomen is performed. Based on the imaging, what is the MOST appropriate next step in management?
A 62-year-old male presents with left lower quadrant pain, fever, and leukocytosis. A CT scan of the abdomen and pelvis is performed (image attached). Assuming the diagnosis, which of the following is the MOST appropriate initial management?
A 45-year-old patient with a known history of multiple cutaneous vascular lesions presents to the emergency department with a 2-day history of intermittent, colicky abdominal pain and nausea. They report chronic fatigue and have a history of iron deficiency anaemia requiring occasional transfusions. On physical examination, vital signs are stable (BP 120/80, HR 75, RR 16, Temp 36.8°C). There is mild diffuse abdominal tenderness without guarding or rebound. Cutaneous examination reveals multiple blue-purple papules and nodules scattered over the trunk and limbs. An abdominal CT scan is performed. Considering the patient's clinical presentation, known history, and the findings demonstrated in the provided image, what is the most appropriate initial management strategy?
A 28-year-old female presents to her general practitioner with a 6-month history of intermittent abdominal pain, predominantly in the right lower quadrant. She describes the pain as cramping and associated with occasional episodes of non-bloody diarrhea. She denies fever, weight loss, or recent travel. Her past medical history is significant for well-controlled asthma, for which she uses an inhaled corticosteroid as needed. Physical examination reveals mild tenderness to palpation in the right lower quadrant, but is otherwise unremarkable. Bowel sounds are normal. Initial laboratory investigations, including a complete blood count and comprehensive metabolic panel, are within normal limits. Stool studies for ova and parasites, bacterial culture, and Clostridium difficile toxin are negative. Given her persistent symptoms, the GP refers her for further evaluation. A CT enterography is performed, and relevant images are shown. Based on the clinical presentation and imaging findings, which of the following is the MOST likely long-term complication this patient is at increased risk of developing?
A 70-year-old male undergoes a CT scan for investigation of chronic back pain. He has no history of abdominal pain or pulsatile mass. His blood pressure is 130/80 mmHg. The image provided is an axial view from this scan. Based on this finding and the patient's clinical status, what is the most appropriate next step in management according to current guidelines?
A 48-year-old man with multiple cutaneous hemangiomas presents with crampy abdominal pain and guaiac-positive stools. The provided image was obtained. What is the MOST appropriate initial diagnostic test to identify the source of bleeding?
A 58-year-old male with a 15-year history of chronic hepatitis B infection and established cirrhosis presents for a routine surveillance appointment. He reports feeling generally well, with no significant weight loss, abdominal pain, or jaundice. He denies alcohol use. On examination, his vital signs are stable. He has mild palmar erythema but no ascites or peripheral oedema. Liver span is normal. Recent blood tests show platelet count 120 x 10^9/L, albumin 35 g/L, INR 1.2, total bilirubin 20 µmol/L, ALT 40 U/L, AST 55 U/L, creatinine 80 µmol/L. Alpha-fetoprotein (AFP) has risen from 50 µg/L six months ago to 450 µg/L today. A triphasic CT scan of the abdomen was performed as part of the surveillance protocol, axial views of which are provided. Considering the patient's clinical history, laboratory trends, and the findings demonstrated on the provided imaging, which of the following represents the MOST appropriate immediate next step in the management of this patient?
A 78-year-old male on warfarin for atrial fibrillation presents to the emergency department with sudden onset of severe dyspnoea and right-sided pleuritic chest pain. He denies trauma. On examination, he is tachypnoeic, oxygen saturation is 92% on room air. Blood pressure 110/70 mmHg, heart rate 95 bpm. Chest examination reveals decreased breath sounds on the right. A CT scan of the chest is performed. Considering the patient's clinical presentation, medical history, and the findings demonstrated in the provided image, which of the following represents the most appropriate immediate management strategy?
A 35-year-old female presents with chronic pelvic pain. The provided CT was performed. What is the MOST appropriate initial management?
A 55-year-old male presents with LLQ pain, fever, and increased WBC. A CT scan is performed. He is hemodynamically stable. Based on the image, which of the following is the MOST appropriate initial management strategy?
A 65-year-old man presents to his GP with a 2-day history of constant, dull aching pain in the left lower quadrant of his abdomen. He reports mild nausea but no vomiting. His bowel movements have been normal. He denies fever or chills. His past medical history includes well-controlled hypertension. On examination, he is afebrile (37.2°C), blood pressure is 135/85 mmHg, heart rate 72 bpm, respiratory rate 16 bpm. Abdominal examination reveals mild tenderness on deep palpation in the left iliac fossa, without guarding or rebound tenderness. Bowel sounds are normal. Digital rectal examination is unremarkable. Laboratory investigations show a white cell count of 10.5 x 10^9/L (normal range 4-11) and a C-reactive protein of 25 mg/L (normal <5). A CT scan of the abdomen and pelvis is performed (image provided). Considering the patient's clinical presentation and the findings demonstrated in the provided image, which of the following represents the most appropriate initial management strategy?
A 70-year-old man presents for a routine check-up. He reports occasional mild, non-radiating abdominal discomfort over the past few months, which he attributes to indigestion. He has a history of well-controlled hypertension and hyperlipidaemia, and quit smoking 10 years ago. Physical examination is unremarkable, with no palpable abdominal masses. Routine blood tests are within normal limits. An abdominal CT scan is performed to investigate the abdominal discomfort. Considering the findings demonstrated in the image, what is the most appropriate next step in the management of this patient?
A 62-year-old male presents to the emergency department complaining of worsening abdominal pain, fatigue, and a 10kg unintentional weight loss over the past 3 months. He reports a history of peptic ulcer disease treated with long-term proton pump inhibitors. Physical examination reveals mild hepatomegaly and trace ascites. Initial laboratory investigations show elevated alkaline phosphatase and gamma-glutamyl transferase (GGT), with normal bilirubin and transaminases. A CT scan of the abdomen and pelvis with contrast is performed, and relevant images are shown. Given the clinical presentation and the findings on the imaging, which of the following is the MOST appropriate next step in management?
A 68-year-old male presents to the ED with left lower quadrant abdominal pain, fever, and leukocytosis. A CT scan of the abdomen and pelvis is performed. Based on the image, what is the most appropriate next step in management?
A 68-year-old male presents with fatigue, weight loss, and vague abdominal discomfort. His past medical history is significant for a recently diagnosed gastric mixed adenoneuroendocrine carcinoma (MANEC). A CT scan of the abdomen is performed. Based on the imaging, what is the MOST appropriate next step in management?
A 45-year-old male with a known history of Blue Rubber Bleb Naevus Syndrome, characterised by recurrent gastrointestinal bleeding and multiple cutaneous vascular lesions, presents to the emergency department with acute onset severe, colicky abdominal pain, nausea, and vomiting. On examination, his abdomen is distended and diffusely tender with reduced bowel sounds. Vital signs are within normal limits. An urgent abdominal CT scan is performed. Based on the clinical presentation and the findings demonstrated in the image, what is the most appropriate immediate next step in management?
A 3-year-old presents with abdominal distension, irritability, and periorbital ecchymosis. Examination reveals a firm, irregular abdominal mass. The provided image is an axial CT slice. Considering the clinical presentation and the findings demonstrated in the image, which of the following biochemical markers is MOST likely to be significantly elevated?
A 35-year-old male presents with a two-month history of fatigue, unintentional weight loss, and a persistent dry cough. He denies fever or night sweats. A PET-CT scan of the chest was performed (image shown). What is the MOST appropriate next step in management?
A 55-year-old male presents to the emergency department with a 2-day history of left lower quadrant abdominal pain, associated with fever (38.2°C) and mild nausea. He denies vomiting, diarrhoea, or rectal bleeding. On examination, he has localised tenderness in the left iliac fossa. His blood pressure is 130/80 mmHg, heart rate 85 bpm, respiratory rate 16 bpm. Blood tests show a white cell count of 14 x 10^9/L and CRP 80 mg/L. A CT scan of the abdomen and pelvis is performed (image provided). Considering the patient's presentation and the findings on the provided image, which of the following is the most appropriate initial management strategy?
A 45-year-old patient with a long history of recurrent gastrointestinal bleeding and multiple cutaneous vascular lesions presents with acute onset severe abdominal pain, nausea, and distension. Physical examination reveals a distended, mildly tender abdomen. Bowel sounds are reduced. Vital signs are stable. Imaging is performed. Considering the patient's presentation and the findings demonstrated in the image, which of the following represents the most appropriate initial management approach?
A 68-year-old man presents with a 4-month history of increasing constipation alternating with loose stools, occasional rectal bleeding, and fatigue. He denies significant weight loss. Physical examination is unremarkable. Full blood count shows a haemoglobin of 115 g/L with low ferritin. A colonoscopy was performed, and the image provided is a representative view. Biopsies were taken from the observed lesion. Considering the clinical presentation and the endoscopic finding, what is the most appropriate next investigation to determine the extent of disease and inform definitive management planning?
A 58-year-old woman presents with a 7-year history of chronic cough productive of copious, often purulent, sputum, particularly noticeable in the mornings. She reports requiring 4-5 courses of antibiotics annually for exacerbations of her 'chronic bronchitis'. She is a non-smoker and has no significant past medical history other than childhood measles complicated by pneumonia. On examination, she has scattered coarse crackles bilaterally at the lung bases. Her oxygen saturation is 96% on room air. Spirometry performed 3 months ago showed FEV1 78% predicted, FVC 85% predicted, FEV1/FVC 0.75. A recent chest X-ray was reported as showing 'mild peribronchial thickening'. Given the clinical suspicion, what is the single most appropriate next investigation to establish the diagnosis?
An asymptomatic 70-year-old male undergoes a CT scan of the abdomen as part of an investigation for mild, intermittent lower back pain. His vital signs are stable, and physical examination is unremarkable. Considering the findings on the provided image, what is the most appropriate next step in this patient's management?