Practice targeted AMC-style multiple-choice questions on computed tomography (CT).
A 3-year-old child is brought to the paediatric clinic by their parents due to a 2-month history of increasing abdominal distension, poor appetite, and occasional constipation. On physical examination, a firm, irregular mass is palpable in the upper abdomen, crossing the midline. Vital signs are stable. Initial blood tests, including full blood count and liver function tests, are within normal limits. An abdominal CT scan is performed (image provided). Considering the findings demonstrated in the image, which of the following investigations represents the most appropriate next step in establishing a definitive diagnosis and guiding further management?
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 48-year-old woman presents with acute onset severe left flank pain radiating to the groin, associated with nausea. She denies fever or dysuria. Vitals are stable. Urinalysis shows haematuria. Serum creatinine is 75 µmol/L. An ultrasound is performed. Considering the clinical presentation and the findings demonstrated in the provided image, which of the following is the most appropriate next diagnostic step?
A 68-year-old male with a long history of alcohol-related cirrhosis and previous treatment for hepatitis C presents with increasing abdominal distension, fatigue, and a dull ache in the right upper quadrant. He denies acute pain or fever. On examination, he has mild jaundice, shifting dullness, and spider naevi. His vital signs are stable. Recent blood tests show albumin 28 g/L, INR 1.4, total bilirubin 45 µmol/L, ALT 65 U/L, AST 88 U/L, creatinine 90 µmol/L. Alpha-fetoprotein (AFP) is 850 µg/L (normal <10). An abdominal CT scan with contrast is performed, axial views of which are shown. Considering the patient's clinical presentation, laboratory results, and the findings on the provided imaging, what is the MOST appropriate immediate next step in the management of this patient?
A 72-year-old male with a history of smoking and hyperlipidemia presents for a health check. He is asymptomatic. A contrast-enhanced CT abdomen is performed as part of a screening protocol. An axial view is shown. Besides optimizing medical management, what is the MOST appropriate next step?
A 55-year-old man presents with 2 days of left lower quadrant pain and mild constipation. He denies fever, nausea, or vomiting. On examination, he is afebrile, BP 120/70, HR 65, O2 sat 99% on air. There is mild LLQ tenderness without guarding or rebound. Bloods show WCC 11.5, CRP 30. A CT scan is performed. Considering the clinical presentation and the findings demonstrated in the image, what is the most appropriate initial management plan?
A 70-year-old male presents to his general practitioner complaining of mild, chronic lower back pain that has been present for several months. He describes the pain as a dull ache, worse with prolonged standing. He has a significant past medical history including hypertension, hyperlipidemia, and a 50-pack-year smoking history, all of which are currently managed with medications. He denies any acute abdominal pain, pulsatile sensation, or leg symptoms. On physical examination, his vital signs are stable: blood pressure 135/85 mmHg, heart rate 72 bpm, respiratory rate 14 breaths/min, and oxygen saturation 99% on room air. Abdominal examination is soft, non-tender, with no palpable masses. Peripheral pulses are symmetric and strong. As part of the investigation into his chronic back pain, a contrast-enhanced CT scan of the abdomen and pelvis is performed. An axial view from the scan is shown. Based on the clinical presentation and the findings demonstrated in the provided image, which of the following 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 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 68-year-old man presents to the emergency department with a 3-day history of left lower quadrant abdominal pain, associated with mild fever (38.1°C) and constipation. On examination, he has localised tenderness in the left iliac fossa without guarding or rebound. His blood pressure is 130/80 mmHg, heart rate 78 bpm, respiratory rate 16 bpm. Blood tests show a white cell count of 12.5 x 10^9/L (normal range 4-11). A CT scan of the abdomen and pelvis is performed (image provided). Considering the patient's presentation and the findings demonstrated in the image, which of the following represents the most appropriate initial management strategy?
A 65-year-old male presents with a 3-month history of unintentional weight loss and early satiety. Gastroscopy and biopsy confirmed a gastric mixed adenoneuroendocrine carcinoma. Staging CT imaging is shown. Considering the clinical presentation and the findings on the provided imaging, what is the most appropriate initial management strategy?
A 3-year-old child presents with a 2-month history of increasing abdominal distension and intermittent pain. On examination, a firm, non-tender mass is palpable in the upper abdomen. Initial blood tests reveal mild anaemia. Vital signs are stable. The provided image was obtained as part of the diagnostic evaluation. Based on the findings in the image and the clinical context, which of the following imaging modalities is most likely to provide critical information regarding potential metastatic disease, which is essential for accurate staging and treatment planning in this paediatric patient?
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 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 68-year-old male presents with dysphagia and weight loss. Gastroscopy and biopsy confirm gastric adenocarcinoma. Staging CT imaging is shown. His ECOG performance status is 1. Considering the clinical presentation and the findings demonstrated in the provided images, what is the most appropriate initial management strategy for this patient?
A 72-year-old male presents to the ED with sudden onset shortness of breath and right-sided chest pain. He has a history of atrial fibrillation and has been taking warfarin for the past 5 years. His INR is currently 6.0. A CT scan of the chest is performed (image attached). What is the MOST appropriate initial management step?
A 68-year-old male presents for a routine check-up. He has a history of smoking and hypertension, managed with lisinopril. He denies any abdominal pain, back pain, or lower extremity claudication. Physical exam is unremarkable. A contrast-enhanced CT scan of the abdomen is performed, the axial view is shown. What is the MOST appropriate next step in management?
A 28-year-old female presents with a chronic cough and fatigue. She has no significant past medical history. A chest PET-CT was performed as part of her workup. The axial view is shown. What is the MOST appropriate next step in management, considering the image and her presentation?
A 72-year-old woman presents with a 3-month history of worsening constipation, occasional bright red rectal bleeding, and unintentional weight loss of 4 kg. She reports feeling increasingly tired. Her past medical history includes hypertension and osteoarthritis. On examination, her vital signs are stable. Abdominal examination is soft, non-tender, with no palpable masses. Digital rectal examination reveals no palpable lesion. Blood tests show a haemoglobin of 108 g/L, MCV 78 fL, and ferritin 12 µg/L. A colonoscopy was performed, and the image provided was captured during the procedure. Considering the clinical presentation and the finding observed during the colonoscopy, which of the following investigations is most crucial for determining the extent of disease and guiding definitive treatment planning within the multidisciplinary team framework?
A 32-year-old male presents to the emergency department with a 3-day history of worsening abdominal pain, primarily localized to the right lower quadrant. He reports associated nausea and decreased appetite but denies vomiting or diarrhea. His past medical history is significant for Crohn's disease, diagnosed 8 years ago, managed with intermittent courses of oral corticosteroids and azathioprine. He admits to poor adherence to his azathioprine regimen over the past year. On examination, he is afebrile with a heart rate of 92 bpm, blood pressure of 120/80 mmHg, and oxygen saturation of 98% on room air. Abdominal examination reveals tenderness to palpation in the right lower quadrant with guarding. Bowel sounds are normoactive. Laboratory investigations reveal a white blood cell count of 11,500/µL with neutrophilia, a C-reactive protein (CRP) of 45 mg/L, and normal liver function tests. A CT scan of the abdomen and pelvis with IV contrast is performed, the relevant images of which are shown. Given the patient's presentation and imaging findings, which of the following is the MOST appropriate next step in management?
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 65-year-old presents with 2 days of left lower quadrant pain, fever (38.5°C), and nausea. On examination, there is localised tenderness in the LLQ. Vitals: BP 130/80, HR 90, RR 16, SpO2 98%. CRP is 150 mg/L, WCC 18 x 10^9/L. This image is obtained as part of the workup. Based on the clinical presentation and imaging findings, what is the most appropriate initial management step?
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 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. Integrating the patient's symptoms, physical examination, and the findings shown in the image, what is the most appropriate immediate next step?
A 3-year-old presents with abdominal distension and bone pain. An abdominal CT is performed (image attached). Which of the following is the MOST appropriate initial investigation to confirm the suspected diagnosis?
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 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?
An 80-year-old male presents to the emergency department with sudden onset of severe right groin pain and a non-reducible bulge. He has a history of a reducible inguinal hernia. Vitals are stable. A CT scan of the pelvis is performed. Considering the clinical presentation and the provided imaging, what is the most appropriate immediate management step?
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 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 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 63-year-old man presents to the ED with increasing shortness of breath and epigastric discomfort, particularly after meals. He has a history of GERD managed with occasional antacids. Physical examination reveals decreased breath sounds at the left lung base. A CT scan of the abdomen and pelvis is performed, the axial view is shown. What is the MOST appropriate next step in management?
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 65-year-old presents with 2 days of left lower quadrant pain, fever (38.5°C), and nausea. On examination, there is localised tenderness in the LLQ. Vitals: BP 130/80, HR 90, RR 16, SpO2 98%. CRP is 150 mg/L, WCC 18 x 10^9/L. This image is obtained as part of the workup. Considering the clinical context and the findings on the image, which of the following represents the most appropriate initial management strategy?
A 75-year-old female presents to the emergency department with a 24-hour history of worsening colicky abdominal pain, nausea, and multiple episodes of bilious vomiting. She reports no passage of flatus or stool for the past 18 hours. Her past medical history includes an open appendectomy 30 years ago and a hysterectomy 10 years ago. On examination, she is afebrile, heart rate 92 bpm, blood pressure 130/80 mmHg, respiratory rate 18/min, oxygen saturation 98% on room air. Her abdomen is distended and diffusely tender to palpation, with high-pitched tinkling bowel sounds on auscultation. A plain abdominal X-ray series, including the image provided, was obtained. Considering the patient's clinical presentation and the findings demonstrated in the provided image, which of the following represents the most appropriate immediate next step in her management?
A 55-year-old male presents with LLQ pain, fever, and increased WBC. A CT scan is performed, as shown. He is hemodynamically stable. What is the MOST appropriate initial management?
A 35-year-old male presents to the ED with intermittent abdominal pain, nausea, and melena. He has multiple cutaneous hemangiomas. A CT scan is performed, as shown. What is the MOST appropriate next step in management?
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 a left homonymous hemianopia, mild right hemiparesis (4/5 strength), and intact sensation. A CT angiogram was performed, and the patient underwent endovascular coiling. The image shows a follow-up angiogram post-procedure. Despite the intervention, the patient's left homonymous hemianopia persists, and her right hemiparesis has not improved. What is the MOST appropriate next step in the management of this patient?
A 55-year-old male presents to the emergency department with a 2-day history of left lower quadrant abdominal pain, associated with subjective fever and chills. He denies nausea, vomiting, or change in bowel habits. On examination, he is afebrile, heart rate 85 bpm, blood pressure 130/80 mmHg. Abdominal examination reveals tenderness in the left iliac fossa without guarding or rebound. White cell count is 14 x 10^9/L, CRP 80 mg/L. A CT scan of the abdomen and pelvis is performed, the relevant axial image is shown. Considering the patient's presentation and the findings on the provided image, which of the following represents the most appropriate initial management strategy?
A 65-year-old male presents with a 2-month history of fatigue, poor appetite, and 5kg weight loss. He reports mild upper abdominal discomfort. Physical examination is unremarkable. Initial blood tests show mild anaemia. An upper endoscopy revealed a suspicious gastric lesion, with biopsy results pending. A CT scan of the abdomen and pelvis was performed. Given the clinical presentation and the findings on the provided imaging, which of the following statements regarding this patient's likely prognosis and management is most accurate?
A 68-year-old man with a history of diverticulosis presents with recurrent, large volume rectal bleeding. Initial colonoscopy failed to identify or control the source. He remains haemodynamically stable after resuscitation. What is the most appropriate next step in management?
A 62-year-old male with a history of hepatitis C presents with new-onset right upper quadrant pain and a 5kg weight loss over the past 3 months. His liver function tests show elevated ALT and AST. An abdominal CT scan with and without contrast is performed (image attached). What is the MOST appropriate 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 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 68-year-old male presents to the emergency department with a 12-hour history of severe, constant left groin pain. He reports a bulge in his groin that has been present for several years, which he can usually reduce himself. However, today he has been unable to push it back in, and the pain has become excruciating. He denies any fever, nausea, or vomiting. On examination, his vital signs are stable: temperature 37.0°C, heart rate 88 bpm, blood pressure 130/80 mmHg, respiratory rate 16 breaths/min, and oxygen saturation 98% on room air. Abdominal examination is unremarkable. Palpation of the left groin reveals a firm, tender mass that is non-reducible. The overlying skin is erythematous, but there is no crepitus. A CT scan of the abdomen and pelvis is performed, and an axial slice is shown. Considering the clinical presentation and the findings demonstrated in the image, what is the MOST appropriate next step in management?
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?