Case of the week

Created on March 26, 2024

Case of the Week

26 March 2024

1 / 2

What’s your diagnosis?

Small bowel obstruction.

Internal hernia.

Cecal volvulus

Ileus.

2 / 2

Which of the following are diagnostic clues in such a case

Haustral folds in distended bowel loop.

Whirl sign of mesentery.

Coffee bean sign.

All of the above.

Your score is

The average score is 41%

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Previous Week Cases

Created on February 27, 2024

Case of the Week

27 Feb 2024

1 / 2

In a patient with sore throat and fever, the CT scan of the neck demonstrates a small

Retropharyngeal abscess

Peritonsillar abscess

Bezold abscess

Parotid abscess

2 / 2

The traditional name for this condition was

Dropsy

Quinsy

Flimsy

Banksy

Your score is

The average score is 60%

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Created on February 06, 2024

Case of the Week

6 Feb 2024

1 / 2

In a patient with paroxysmal cough and left anterior chest pain the images likely represent

Rib fracture

Costal cartilage fracture

Sternal fracture

Clavicle fracture

2 / 2

The associated finding is

Pneumothorax

Pneumomediastinum

Chest wall hematoma

Hemopericardium

Your score is

The average score is 67%

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Created on January 29, 2024

Case of the Week

29 Jan 2024

1 / 2

All are seen on the scan except

Colonic obstruction

Colonic wall pneumatosis

Rectal wall thickening

Ruptured aneurysm

2 / 2

Pneumatosis is a sign of

Infarcted bowel

Penetrating trauma

Bowel obstruction

Gastrointestinal hemorrhage

Your score is

The average score is 56%

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Created on January 11, 2024

Case of the Week

11 Jan 2024

1 / 2

The vascular lesion demonstrated is most likely a

Penetrating Aortic Ulcer

Aortic Dissection

Intramural Hematoma

Aortic Pseudoaneurys

2 / 2

Differentiators between Penetrating Aortic Ulcer (PAU) and Aortic Dissection (AD) are related to

PAU occurs in older patients with atherosclerosis

PAU more commonly occurs in the distal thoracic aorta

PAU can be classified by the Stanford classification

PAU may occur as an incidental finding

Your score is

The average score is 23%

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Created on January 02, 2024

Case of the Week

2 Jan 2024

1 / 2

What is the diagnosis? 

Ruptured aortic aneurysm

Endoleak

Saccular pseudoaneurysm

Hemorrhagic cyst

2 / 2

Which of the following is not correct regarding endovascular leak ?

Type I endoleak leakage of blood between stent-graft and one of

Type II endoleak: reflux of blood into aneurysm sac through collateral vessels, most commonly lumbar or inferior mesenteric arteries

Type III endoleak: leakage of blood through defect in stent-graft wall.

Type III is the most common type

Your score is

The average score is 52%

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Created on December 07, 2023

Case of the Week

07 Dec 2023

1 / 2

Which of the following is the most common predisposing factor for emphysematous cystitis?

Prolonged catheterization.

Diabetes mellitus.

Neurogenic bladder

Immunocompromised state

2 / 2

The main diagnostic feature of emphysematous cystitis on imaging is

Gas within the urinary bladder wall.

Wall thickening.

Perivesical fat stranding.

Intraluminal gas.

Your score is

The average score is 68%

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Created on November 15, 2023

Case of the Week

15 Nov 2023

1 / 2

What diagnosis best fits the above images?

Metastatic carcinoid tumor.

Small bowel obstruction due to intussusception.

Colon carcinoma with colonic obstruction.

Impacted fecal matter and stercoral colitis.

2 / 2

All the following are true except

In small bowel obstruction, abdominal pain is described as intermittent and colicky but improves with vomiting, while the pain associated with LBO is continuous.

The vomiting in small bowel obstruction tends to be more frequent, in larger volumes, and bilious, which is in contrast to vomiting during an large bowel obstruction, which typically presents as intermittent and feculent when present.

Abdominal distention is marked in large bowel obstruction with obstipation more commonly present

Large bowel obstruction will mimic small bowel obstruction if the ileocecal valve is competent.

Your score is

The average score is 44%

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Created on October 16, 2023

Case of the Week

16 Oct 2023

1 / 2

Which is the most likely etiology based on the reformatted image?

Ureterocele.

Retroaortic left renal vein

Bladder Neoplasm

Trauma

2 / 2

What is the most likely diagnosis for the renal finding?

Left pyelonephritis.

Obstructed left ureter

Left renal vein thrombosis

Left renal artery stenosis

Your score is

The average score is 19%

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Created on September 25, 2023

Case of the week

25 Sept 2023

1 / 2

What is the diagnosis? 

TORCH infection

AVM

Sturge weber syndrome

Healed cortical infarct

2 / 2

Which of the following is not CT findings in sturge weber syndrome

subcortical calcification (seen at an earlier age than plain film) and associated parenchymal volume loss

Tram-track sign of cortical and subcortical calcification

ipsilateral choroid plexus may be enlarged

Ventriculomegaly

Your score is

The average score is 58%

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Created on September 19, 2023

Case of the Week

19 Sept 2023

1 / 2

What is the diagnosis?

Retroperitoneal rhabdomyosarcoma

Retroperitoneal extramedullary hematopoiesis

Retroperitoneal fibrosis

Abdominal aorta thrombosed aneurysm

2 / 2

Which of the following is a false statement regarding retroperitoneal fibrosis?

It causes medial deviation of the middle third of the ureters.

It develops around the renal hila and spreads downwards where it can envelop the aortic bifurcation. 

On MRI, the soft tissue mass is usually dark on T1W and T2W unless there is an active inflammation whereby the T2W images can be hyperintense. 

Your score is

The average score is 57%

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Created on September 04, 2023

Case of the Week

4 September 2023

1 / 2

In this patient with head trauma the most likely diagnosis is

Epidural hematoma

Subdural hematoma

Diffuse Axonal Injury

Duret Hemorrhage

2 / 2

Features of DAI include all except

The mechanism is commonly a shear injury

The neurologic manifestations are disproportionate to the imaging findings

Hemorrhages commonly involve the grey-white interface and corpus callosum

CT is superior to MRI in evaluation

Your score is

The average score is 65%

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Created on August 29, 2023

Case of the Week

28th August 2023

1 / 2

What is the diagnosis? 

Lacunar infarcts

Prominent Virchow Robin space

Carbon monoxide poisoning

Neurogenic cyst

2 / 2

Which of the following is a false statement regarding carbon monoxide poisoning?

arbon monoxide poisoning may result in an anoxic-ischemic encephalopathy, with acute as well as delayed effects.

Carbon monoxide strongly binds to hemoglobin and the resultant carboxyhemoglobin in the bloodstream can cause profound hypoxic/anoxic injury

Treatment consists of administering 100% oxygen which accelerates the elimination of carboxyhemoglobin 9.

CT is considered the most sensitive and specific imaging modality for diagnosis. 

Your score is

The average score is 57%

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Created on August 09, 2023

Case of the week

7 August 2023

1 / 2

The most likely diagnosis in this patient with uncontrolled hypertension and headache is

Multiple sclerosis

Leukodystrophy

PRES

Cerebral infarct

2 / 2

All of the following are true about PRES except

It can present with visual disturbance

Risk factors include pre-eclampsia/eclampsia, renal failure and cytotoxic agents

Treatment is supportive and involves correcting the underlying cause

Prognosis is poor and the minority of patients recover

Your score is

The average score is 71%

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Created on July 31, 2023

Case of the Week

31 July 2023

1 / 2

What is the finding seen in given images?

portal vein thrombosis

superior mesenteric vein thrombosis

inferior mesenteric vein thrombosis

left gonadal vein thrombosis

2 / 2

What is the pathology usually associated with this finding?

appendicitis

diverticulitis

epiploic appendagitis

gastritis

Your score is

The average score is 52%

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Created on July 24, 2023

Case of the Week

24 July 2023

1 / 2

The most likely diagnosis on this noncontrast head CT is

Brainstem glioma

CP angle meningioma

Vertebral artery aneurysm

AV malformation

2 / 2

Vertebral artery aneurysm can present with

Subarachnoid hemorrhage

Medullary compression

Cranial neuropathy

All of the above

Your score is

The average score is 81%

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Created on July 17, 2023

Case of the Week

17 July 2023

1 / 2

The type of hernia demonstrated is a/an

Inguinal hernia

Femoral hernia

Obturator hernia

Ventral hernia

2 / 2

CT features of an incarcerated hernia typically include all except

Dilated bowel with transition at the hernia neck

Mesenteric vascular congestion in the hernia

Fluid in the hernia sac

Retroperitoneal hemorrhage

Your score is

The average score is 69%

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Created on July 10, 2023

Case of the Week

10 July 2023

1 / 2

The most likely diagnosis in this patient with right lower quadrant pain is

Appendicitis

Transverse colon diverticulitis

Meckel’s diverticulitis

Salpingitis

2 / 2

The most common location for diverticulitis is

Ascending colon

Transverse colon

Descending colon

Sigmoid colon

Your score is

The average score is 56%

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Created on July 03, 2023

Case of the Week

3 July 2023

1 / 2

The pattern of hemorrhages seen in the head CT indicate a mechanism of

Shear injury

Venous infarct

Ruptured aneurysm

Cerebral amyloidosis

2 / 2

All of these statements are true about Diffuse Axonal Injury except

It is caused by shear forces (sudden deceleration injury)

The pattern consists of multiple small hemorrhages at the grey white interface, corpus callosum and brainstem

Post-traumatic coma may last a considerable time

CT is more sensitive than MRI

Your score is

The average score is 52%

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Created on June 26, 2023

Case of the Week

26 June 2023

1 / 2

What are the findings in the above image?

Hemothorax

Mediastinal shift to the left

Small focus of active hemorrhage in the intercostal region

All of the above.

2 / 2

What are the complication of hemothorax

Hypotension/shock

Empyema

Chronic fibrothorax

All of the above.

Your score is

The average score is 77%

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Created on June 19, 2023

Case of the Week

19 June 2023

1 / 2

What are the CT findings seen in this unresponsive patient, post cardiac arrest?

Diffuse sulcal effacement

Loss of grey-white differentiation

Pseudosubarachnoid hemorrhage

All of the above.

2 / 2

What is the diagnosis?

Hypoxic ischemic encephalopathy

Posterior Reversible Encephalopathy Syndrome (PRES)

Creutzfeldt Jakob Disease

Status Epilepticus

Your score is

The average score is 71%

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Created on June 12, 2023

Case of the Week

12 June 2023

1 / 2

What is the diagnosis on this contrast CT image of the abdomen and pelvis?

Rectus Sheath Hematoma with active contrast extravasation

Desmoid Tumor of abdominal wall

Spindle cell tumor

Cesarean scar Endometriosis.

2 / 2

Rectus sheath hematoma develops due to which of the following causes?

Tearing of fibres of the rectus abdominis muscle

Direct blunt abdominal trauma.

Rupture of epigastric arteries

All of the above.

Your score is

The average score is 87%

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Created on June 05, 2023

Case of the Week

5 June 2023

1 / 2

What is the diagnosis?

Gallbladder mucocele

Liver abscess

Emphysematous cholecystitis

Acute acalculous cholecystitis

2 / 2

Which of the following is a false statement regarding emphysematous cholecystitis?

Vascular compromise of the cystic artery is thought to play a significant role in causing emphysematous cholecystitis.

Women are affected twice as commonly as men.

It is a surgical emergency and treatment is emergent surgical intervention.

CT is considered the most sensitive and specific imaging modality for identifying gas within the gallbladder lumen or wall.

Your score is

The average score is 57%

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Created on May 29, 2023

Case of the Week

29 May 2023

1 / 2

What is the diagnosis?

Sinding-Larsen-Johansson disease

Osgood-Schlatter disease

Jumper’s knee

Infrapatellar bursitis

2 / 2

Which of these is not an MRI finding of Osgood-Schlatter disease?

Thickening and edema of the distal patellar tendon

Bone marrow edema at the tibial tuberosity

Prepatellar bursitis

Deep infrapatellar bursitis

Your score is

The average score is 51%

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Created on May 22, 2023

Case of the Week

22 May 2023

1 / 2

What is the finding seen in the given CT images

Pancreatic pseudocyst

Gastric outlet obstruction with pneumatosis of gastric wall

Toxic megacolon with pneumatosis coli

Bezoar

2 / 2

Causes of gastric wall pneumatosis may include

Ingestion of corrosives

Gastric outlet obstruction

Gastric volvulus

All of the above

Your score is

The average score is 92%

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Created on May 15, 2023

Case of the Week

15 May 2023

1 / 2

The maxillofacial CT scan demonstrates

Orbital floor blowout fracture

Lamina papyracea blowout fracture

Tripod fracture

Hemosinus

2 / 2

Complications of this injury may include

Extraocular muscle entrapment

Enopthalmos

Hypoglobus

All of the above

Your score is

The average score is 79%

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Created on May 08, 2023

Case of the Week

8 May 2023

1 / 2

In the above given frontal and lateral wrist radiograph, identify the fracture

Normal radiograph. No fracture identified.

Torus fracture involving distal radial metaphysis.

Greenstick fracture involving the distal radial metaphysis.

Salter Harris type V involving the distal radial epiphysis.

2 / 2

Which among the following is true regarding above depicted fracture.

Also known as buckle fractures, are incomplete fractures of shaft of long bones better characterized by bulging of the cortex.

They result from trabecular compression due to an axial loading forces along the long axis of the bone.

Usually seen in children, frequently involving the distal radial metaphysis.

All of the above

Your score is

The average score is 61%

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Created on April 24, 2023

Case of the Week

24 April 2023

1 / 2

What is the complete diagnosis?

Occlusion of the right common carotid artery

Occlusion of the right internal carotid artery

Occlusion of the right vertebral artery

Segmental occlusion of both vertebral arteries

2 / 2

Which of these is false about the vertebral artery?

PICA is a paired artery originating from V4 segment of the vertebral artery

Most common cause of vertebral artery thrombosis is vertebral artery dissection

Vertebral artery dissection is encountered in older patients than internal carotid artery dissection

Rotational vertebral artery occlusion syndrome (bow hunter’s syndrome) is a rare form of vertebrobasilar insufficiency secondary to dynamic compression of the usually dominant vertebral artery.

Your score is

The average score is 45%

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Created on April 17, 2023

Case of the Week

17 April 2023

1 / 2

What is the diagnosis?

Non-ketotic hyperglycaemic hemichorea (NHH)/ hemichorea – hemiballismus syndrome

Hypertensive hemorrhages

Basal ganglia calcifications

Tuberous sclerosis.

2 / 2

Which of these is false about non-ketotic hyperglycaemic hemichorea

Non-ketotic hyperglycaemic hemichorea is always bilateral

CT brain initially is normal, but later can demonstrate hyperdensity in the Caudate nuclei and Putamen. MRI brain is the diagnostic modality of choice

Findings tend to be contralateral to the body side affected by hemiballistic, hemichoreic movements.

Symptoms and imaging findings resolve upon normalization of glucose levels.

Your score is

The average score is 61%

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