computed tomography (CT)

A 32-year-old woman presents to the ED with acute lower abdominal pain and nausea. She reports her last menstrual period was 6 weeks ago, and home pregnancy test was negative yesterday. Vitals are stable. A CT scan of the abdomen and pelvis is performed, the relevant image is shown. What is the MOST appropriate next step in management?

A 68-year-old man with a 40 pack-year smoking history presents with a 3-month history of persistent cough, occasional haemoptysis, and a 5 kg weight loss. A chest X-ray shows a left upper lobe opacity. A subsequent CT scan of the chest, abdomen, and pelvis confirms a 4 cm mass in the left upper lobe and identifies several enlarged mediastinal lymph nodes (largest 1.5 cm). There is no clear evidence of distant metastatic disease on the CT scan. He has no neurological symptoms or bone pain. Pulmonary function tests are pending. What is the most appropriate next investigation for staging this patient's non-small cell lung cancer?

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 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 38-year-old male presents to the emergency department with a 2-day history of intermittent abdominal pain, nausea, and vomiting. He reports passing dark, tarry stools. He has a known history of multiple cutaneous hemangiomas since childhood. On examination, his abdomen is distended and tender to palpation, particularly in the periumbilical region. Bowel sounds are hyperactive. Vitals are: HR 110 bpm, BP 100/60 mmHg, RR 20 breaths/min, SpO2 97% on room air, Temp 37.2°C. A CT scan of the abdomen and pelvis is performed, and a representative image is shown. Given the clinical presentation and imaging findings, what is the MOST appropriate initial management strategy?

A 78-year-old male on warfarin presents with dyspnea and pleuritic chest pain after a fall. INR is 7.0. A chest CT is performed (image attached). After initial resuscitation, what is the MOST appropriate next step?

A 72-year-old male with a history of hypertension and hyperlipidemia presents for a routine follow-up. He is asymptomatic. A contrast-enhanced CT scan of the abdomen was performed as part of a screening protocol. An axial view is shown. What is the MOST appropriate next step?

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. Considering the patient's acute presentation, physical examination findings, and the specific anatomical relationship demonstrated in the image, what is the most critical potential complication requiring urgent surgical assessment?

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 months despite being on maintenance therapy with azathioprine. A CT scan of the abdomen and pelvis is performed, as shown. Based on the imaging findings, which of the following 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). The provided image was obtained as part of his staging workup. Which of the following is the MOST appropriate next step in management?

A 78-year-old male on warfarin for atrial fibrillation presents 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 pharmacological agents is the most appropriate immediate intervention?

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 68-year-old male presents to the ED with severe groin pain and a palpable mass. He reports constipation and inability to pass flatus for 24 hours. Examination reveals tenderness and erythema. A CT scan is performed. What is the MOST appropriate next step in management?

A 70-year-old man presents with a 3-month history of worsening constipation, occasional bright red rectal bleeding, and unexplained fatigue. His GP notes mild pallor. Full blood count reveals a haemoglobin of 105 g/L and low ferritin. A colonoscopy is performed, and the image provided is a representative view of a finding in the sigmoid colon. Biopsies were taken. Considering the clinical context and the endoscopic appearance, which of the following is the most appropriate next step in the management pathway to determine the extent of disease?

A 28-year-old woman presents with pelvic pain that started suddenly 2 days ago. Her periods are regular. She denies fever or vomiting. The shown CT was performed. What is the MOST likely diagnosis?

A 2-year-old with a palpable abdominal mass and periorbital ecchymoses has the shown CT. What is the MOST likely diagnosis?

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 to his general practitioner with a three-month history of progressive dysphagia to both solids and liquids, accompanied by postprandial regurgitation. He also reports experiencing early satiety and occasional episodes of nocturnal coughing. His past medical history is significant for well-controlled hypertension and a remote history of smoking (quit 20 years ago). Physical examination reveals mild epigastric fullness, but is otherwise unremarkable. His vital signs are within normal limits. An abdominal CT scan with contrast was performed, and a representative image is shown. Given the clinical presentation and the findings on the image, which of the following is the MOST appropriate next step in the management of this patient?

A 28-year-old immunocompetent patient presents with a chronic cough and low-grade fever. Initial investigations, including sputum microscopy, are negative. A PET-CT scan was performed (image shown). What is the MOST appropriate next step?

A 70-year-old male with known gastric MANEC presents with worsening jaundice and ascites. The provided CT scan was performed. Which of the following serum markers would be MOST useful in monitoring disease progression in this patient?

A 68-year-old man presents with a 3-month history of progressive dysphagia, early satiety, and unintentional weight loss of 8 kg. He has a background of well-controlled hypertension. Physical examination reveals mild epigastric tenderness. Initial blood tests show a normocytic anaemia. An urgent upper endoscopy identified a large, ulcerated mass in the gastric body, and biopsies were taken. A staging CT scan of the abdomen and pelvis was subsequently performed. Considering the clinical presentation and the findings demonstrated in the provided imaging, which of the following statements best reflects the likely prognosis and primary management strategy for this patient?

A 70-year-old male undergoes a CT scan for investigation of chronic back pain. He is otherwise asymptomatic with stable vital signs. The image provided is an axial view from this scan. Based on this finding, what is the most appropriate next step in the patient's management according to current guidelines?

A 78-year-old male on warfarin for atrial fibrillation presents with acute severe dyspnoea and right-sided pleuritic chest pain. Vitals: T 36.8°C, HR 95, BP 110/70, RR 24, SpO2 92% RA. Exam: decreased breath sounds, dullness right hemithorax. A CT scan of the chest is performed. Considering the patient's presentation, history, and the imaging findings, which is the most appropriate immediate management?

A 63-year-old man presents with increasing postprandial fullness and epigastric discomfort. He reports occasional regurgitation of undigested food. A CT scan of the abdomen is performed. Based on the image, what is the MOST appropriate next step in management?

A 62-year-old male presents to the emergency department with right upper quadrant abdominal pain, weight loss, and jaundice. He has a known history of chronic hepatitis C infection. His vital signs are stable. Physical examination reveals hepatomegaly and mild ascites. The patient denies any alcohol consumption. Laboratory investigations reveal elevated alpha-fetoprotein (AFP) levels. A CT scan of the abdomen with and without contrast is performed, as shown. Based on the imaging and clinical findings, what is the MOST appropriate next step in management?

A 32-year-old male presents to the emergency department complaining of intermittent abdominal pain, nausea, and vomiting for the past 24 hours. He reports passing a small amount of blood in his stool this morning. He denies any fever or chills. His past medical history is significant for multiple cutaneous hemangiomas, which he has had since childhood. On physical examination, his abdomen is mildly distended and tender to palpation in the periumbilical region. Bowel sounds are hyperactive. The patient is hemodynamically stable. A CT scan of the abdomen is performed, the results of which are shown. Given the clinical presentation and imaging findings, what is the MOST appropriate next step in the management of this patient?

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 55-year-old woman presents to her general practitioner with a 3-month history of increasing abdominal bloating, early satiety, and a vague, intermittent dull ache in her lower abdomen. She reports a 5 kg weight loss over the same period, which she attributes to reduced appetite. Her last menstrual period was 5 years ago. She has a past medical history of well-controlled hypertension and osteoarthritis. She is on perindopril and paracetamol as needed. On physical examination, her vital signs are stable (BP 130/80 mmHg, HR 72 bpm, RR 16/min, Temp 36.8°C). Abdominal examination reveals mild distension and a firm, non-tender mass palpable in the suprapubic and left iliac fossa regions, estimated to be about 8 cm in size. Bowel sounds are normal. Pelvic examination is deferred due to patient discomfort and preference for imaging first. Routine blood tests, including full blood examination, urea and electrolytes, liver function tests, and C-reactive protein, are all within normal reference ranges. A CT scan of the abdomen and pelvis is performed to investigate her symptoms, an axial image from which is shown. Considering the clinical presentation and the findings on the image, what is the most appropriate immediate next step in the management of this patient?

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 45-year-old male presents with left flank pain radiating to the groin. Urinalysis shows microscopic hematuria. What is the MOST likely diagnosis based on the image?

A 55-year-old male presents to the emergency department with a 2-day history of left lower quadrant abdominal pain, associated with a low-grade fever (38.1°C) and mild nausea. He denies vomiting, diarrhoea, or rectal bleeding. On examination, he has localised tenderness in the left iliac fossa. His vital signs are stable: BP 130/80 mmHg, HR 78 bpm, RR 16/min, SpO2 98% on air. Blood tests show a white cell count of 12.5 x 10^9/L and CRP 45 mg/L. An abdominal CT scan is performed (image provided). Based on the clinical presentation and the provided image, what is the most appropriate initial management plan?

A 72-year-old woman presents with iron deficiency anaemia and a 4-month history of intermittent lower abdominal pain and tenesmus. Colonoscopy was performed, and the image shows a finding in the sigmoid colon. Biopsies are pending but highly suspicious for malignancy. What is the MOST appropriate initial staging investigation?

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 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 interventions is most critical to initiate *before* considering invasive drainage?

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. His past medical history includes hypertension and hyperlipidaemia, both well-controlled on medication. On examination, his temperature is 38.5°C, pulse 95 bpm, BP 130/80 mmHg, respiratory rate 18/min, oxygen saturation 98% on room air. Abdominal examination reveals tenderness and guarding in the left iliac fossa, with mild rebound tenderness. Bowel sounds are reduced. Digital rectal examination is unremarkable. Blood tests show a white cell count of 15 x 10^9/L (neutrophils 85%), haemoglobin 145 g/L, platelets 250 x 10^9/L, C-reactive protein of 120 mg/L. Urea, electrolytes, and creatinine are within normal limits. Liver function tests are normal. A CT scan of the abdomen and pelvis is performed (image provided). Considering the clinical presentation and the specific findings demonstrated in the provided image, which of the following interventions is most likely to be required in addition to intravenous antibiotics and supportive care?

A 55-year-old male presents to the emergency department with a 2-day history of left lower quadrant abdominal pain, associated with a low-grade fever (38.1°C) and mild nausea. He denies vomiting, diarrhoea, or rectal bleeding. On examination, he has localised tenderness in the left iliac fossa. His vital signs are stable: BP 130/80 mmHg, HR 78 bpm, RR 16/min, SpO2 98% on air. Blood tests show a white cell count of 12.5 x 10^9/L and CRP 45 mg/L. An abdominal CT scan is performed (image provided). Based on the clinical presentation and the provided image, if outpatient management is deemed appropriate, which of the following antibiotic regimens is most consistent with current Australian guidelines?

A 68-year-old male presents to the ED with left lower quadrant abdominal pain, fever, and nausea for 3 days. His WBC count is 14,000. 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 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 imaging, what is the MOST appropriate next step in management?

An 68-year-old man attends his GP for a routine check-up. He has a history of well-controlled type 2 diabetes, hypertension, and smoked for 30 years, quitting 5 years ago. He denies any abdominal pain, back pain, or pulsatile sensation. Physical examination is unremarkable. As part of a cardiovascular risk assessment, an abdominal ultrasound is initially performed, which is inconclusive due to bowel gas. A follow-up contrast-enhanced CT scan is arranged. Considering the findings demonstrated in the image, what is the most appropriate next step in the management of this patient?

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 68-year-old male presents to the ED with a painful lump in his groin that has been present for 3 days. He reports nausea but denies vomiting. His vital signs are stable. An abdominal CT is performed, and a slice is shown. What is the MOST appropriate next step in management?

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 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 31-year-old woman presents with pelvic pain and bloating for 3 months. Her periods are regular. Pelvic exam reveals mild adnexal tenderness. A CT scan is performed, with a relevant image shown. What is the MOST appropriate next step?

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?

A 42-year-old male presents to the emergency department with a 3-day history of colicky abdominal pain, nausea, and vomiting. He reports that he has not had a bowel movement in 2 days and has noticed some blood in his vomit. He has a known history of multiple cutaneous hemangiomas since childhood. On examination, his abdomen is distended and tympanic, with tenderness to palpation in all quadrants. Bowel sounds are high-pitched and infrequent. Vitals are stable. A CT scan of the abdomen and pelvis is performed, and a representative image is shown. What is the MOST likely underlying cause of the patient's acute presentation, considering his history and the imaging findings?

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, as shown. Which of the following is the MOST appropriate next step in management?

A 63-year-old man presents to his GP with a 6-month history of intermittent postprandial fullness and mild dysphagia, particularly with solid foods. He reports occasional regurgitation but denies significant heartburn or chest pain. His vital signs are stable, and physical examination is unremarkable. Recent blood tests show mild iron deficiency anaemia. The provided image is from a CT scan of the chest and upper abdomen performed as part of his investigation. Considering the clinical presentation and the significant anatomical finding demonstrated in the image, what is the most appropriate next step in the management of this patient?