Case of the Week

Case of the week

07 March 2022

1 / 2

What is the diagnosis?

History: 13/y male with pain in right hip and walking difficulty.

Perthes disease

Slipped capital femoral epiphysis

Tuberculous arthritis

Juvenile rheumatoid arthritis

2 / 2

What is the main role of MRI in assessment of disease?

Early diagnosis

Cartilaginous involvement

Assessment of joint congruence and containment

All of the above.

Your score is

The average score is 58%

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11

Case of the week

28 February 2022

1 / 2

The CT scan of the neck shows

Peritonsillar abscess

Ludwigs Angina

Retropharyngeal abscess

Submandibular sialadenitis

2 / 2

All are true about retropharyngeal abscess except

Half of the retropharyngeal abscesses are believed to be attributed to antecedent upper respiratory tract infection

The number one cause of death in patients with retropharyngeal abscess is upper airway occlusion

Retropharyngeal abscesses are often polymicrobial infections

Oral antibiotics are generally sufficient to treat this infection.

Your score is
The average score is 41%
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0%

9

Case of the week

21 February 2022

1 / 2

The images in this patient with acute onset of chest pain show

Aortic intramural hematoma

Hemopericardium

Potential cardiac tamponade

All of the above

2 / 2

The sign on the noncontrast CT that indicates this diagnosis is

Hyperdense crescent sign

Doughnut sign

Terry Thomas sign

Drooping lily sign

Your score is
The average score is 11%
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9

Case of the week

14 February 2022

1 / 2

The CT images demonstrate findings of all except

Spondylitis

Discitis

Psoas phlegmon

Compression fracture

2 / 2

All of the following are true about spinal infection except

Accounts for less than 5% of osteomyelitis overall

Fever is a common presenting symptom

Vertebral endplates are more commonly involved because of their abundant vascular supply

The thoracolumbar junction is the most commonly affected segment of the spine involved in tuberculous infection

Your score is
The average score is 39%
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16

Case of the week

07 February 2022

1 / 2

In a patient with bloody diarrhea, the CT findings include

Colonic wall edema

Pneumatosis coli

Portal venous gas

All of the above

2 / 2

The diagnosis is most likely

Ulcerative colitis

Ischemic colitis

Amebic colitis

None of the above

Your score is
The average score is 56%
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0%

13

Case of the week

31 January 2022

1 / 2

Findings are characteristic of

Trauma

Posterior reversible Encephalopathy syndrome (PRES)

Cysticercosis

Pick’s Disease

2 / 2

The lesions are in the

Parietal lobes, grey matter

Frontal lobes, white matter

Temporal lobes, grey matter

Occipital lobes, white matter

Your score is
The average score is 65%
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0%

27

Case of the week

24 January 2022

1 / 2

In a patient presenting with sudden onset of abdominal pain, the findings above are most suggestive of a

Sigmoid volvulus

Cecal volvulus

Gastric volvulus

Intusussception

2 / 2

All of the following are correct except:

Cecal volvulus accounts for approximately 50% of all intestinal volvulus

Cecal volvulus generally occurs in somewhat younger patients than with a sigmoid volvulus.

In the absence of bowel wall ischemia, the treatment can be performed endoscopically

If unrecognized and untreated, it can result in bowel perforation and fecal peritonitis.

Your score is
The average score is 31%
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0%

28

Case of the week

10 January 2022

1 / 2

The noncontrast CT in this patient who is post cardiac arrest (left image current, right image prior for comparison) shows all the following signs except:

Effacement of sulci, ventricles and basal cisterns

Loss of gray-white matter differentiation

Pontine hemorrhage

Pseudo Subarachnoid hemorrhage sign

2 / 2

The physiologic basis for these changes in the given setting includes

Ruptured aneurysm resulting in Subarachnoid hemorrhage

Hypoxic injury resulting in cerebral edema

Vascular occlusion resulting in cerebral infarct

Dehydration resulting in Dural sinus thrombosis

Your score is
The average score is 61%
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0%

13

Case of the week

03 January 2022

1 / 2

In a young female with right pelvic pain the findings most likely represent

Hydrosalpinx

Appendicitis

Ovarian torsion

Diverticular abscess

2 / 2

The common organisms involved in PID are all except

Chlamydia

Gardnerella

Neisseria

Meningococcus

Your score is
The average score is 65%
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0%

10

Case of the week

27 December 2021

1 / 3

The location of the hemorrhage is the

Falx

Pons

Midbrain

Cerebellum

2 / 3

Risk factors for brainstem hemorrhage include

Hypertension

Vascular malformation

Bleeding diathesis

All of the above

3 / 3

The following are true about midbrain haemorrhage

The majority present with acute symptoms

Common presenting symptoms are alteration of consciousness and headache

Most patients deteriorate rapidly

In approximately 1/3 no cause is apparent

Your score is
The average score is 70%
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0%

16

Case of the week

20 December 2021

1 / 2

The CT images demonstrate a

Gastric volvulus

Small bowel volvulus

Cecal volvulus

Sigmoid volvulus

2 / 2

All are true except

Approximately 60% of intestinal volvulus involves the sigmoid colon

Sigmoid volvulus is more common in younger patients

Bird beak sign is a radiologic feature of sigmoid volvulus

Endoscopic detorsion in the initial treatment of choice.

Your score is
The average score is 50%
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0%

10

Case of the week

13 December 2021

1 / 2

The significant finding is

Pneumobilia

Pneumatosis

Pneumothorax

Pneumoperitoneum

2 / 2

Other causes of this finding include

Toxic caustic ingestion

Scleroderma

Steroids

Lymphangioleiomyomatosis

Your score is
The average score is 55%
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0%

16

Case of the week

06 December 2021

1 / 2

The significant abnormality is in the

Pituitary gland

Falx

Pineal gland

Septum pellucidum

2 / 2

The following are true about pituitary apoplexy except

An existing pituitary macroadenoma is usually present

Pregnancy is a predisposing factor

It may result in oculomotor palsy

Hypopituitarism is an uncommon sequelae

Your score is
The average score is 50%
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0%

13

Case of the week

29 November 2021

1 / 2

Hemorrhage is seen in all except

Right thalamus

Right lateral ventricle

Left lateral ventricle

Right frontal convexity

2 / 2

The pattern of hemorrhage is suggestive of a

Bleed from vascular malformation

Bleed from tumor

Hypertensive bleed

Ruptured aneurysm

Your score is
The average score is 73%
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0%

11

Case of the week

22 November 2021

1 / 2

The image shows

Bartholin cyst

Perianal abscess

Urethral diverticulum

Vulvar abscess

2 / 2

All of the following facts are true about this entity except

Much more common in females

Usually appears in early adolescence

Its size does not correlate with symptoms

Causes recurrent urinary infections

Your score is
The average score is 36%
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0%

13

Case of the week

15 November 2021

1 / 2

The radiograph shows

Right AC joint subluxation

Sternal fracture

Left clavicle fracture

Pneumothorax

2 / 2

All the following except ___________ can be better diagnosed on a lateral radiograph

Vertebral compression fracture

Sternal fracture

Retropharyngeal abscess

Widening of the carinal angle

Your score is
The average score is 62%
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0%

11

Case of the week

08 November 2021

1 / 2

The finding on this contrast CT of the neck is

Peritonsillar abscess

Thyroid mass

Left internal carotid artery occlusion

Parotid abscess

2 / 2

Predisposing factors include

Hashimoto’s disease

Sjogren syndrome

Hypercholesterolemia

Tonsillitis

Your score is
The average score is 64%
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0%

11

Case of the week

25 October 2021

1 / 2

In a patient with a history of gastric sleeve surgery, the hepatic finding seen on the CT images above most likely represents

Thrombosed hepatic vein

Thrombosed portal vein

Dilated bile duct

Hepatic laceration

2 / 2

All of the following statements are correct except

Portal vein thrombosis is a common complication of laparoscopic bariatric surgery

Portal venous flow is affected by increased intraabdominal pressure with carbon dioxide pneumoperitoneum.

Treatment of PVT is guided by the acuity of the disease and the underlying cause, if known.

Clinical presentation may be subtle and requires a high index of suspicion.

Your score is
The average score is 18%
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0%

6

Case of the week

18 October 2021

1 / 2

The CT angiogram of the brain demonstrates all the findings except

Left transverse sinus thrombosis

Left sigmoid sinus thrombosis

Left internal jugular vein thrombosis

Basilar artery thrombosis

2 / 2

Risk factors for the above would include

Heparin overdose

Hemophilia

Thrombocytopenia

COVID-19 infection

Your score is
The average score is 58%
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0%

6

Case of the week

11 October 2021

1 / 2

In a patient experiencing abdominal pain following a motor accident the findings most likely represent

Rectal perforation

Small bowel perforation

Urinary Bladder trauma

Iliac vessel injury

2 / 2

The follow up delayed rescan confirms

Intraperitoneal bladder rupture

Extraperitoneal bladder rupture

Malpositioned Foley Catheter

Bowel rupture

Your score is
The average score is 67%
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0%

6

Case of the week

04 October 2021

1 / 2

In a patient with a recent drop in hemoglobin, the significant finding on this CT scan is

Iliopsoas hematoma

Gluteal hematoma

Rectus sheath hematoma

Hemoperitoneum

2 / 2

All are true about this condition except

Generally self-limiting

More common in males

Contrast CT can demonstrate active hemorrhage

Anticoagulation is a risk factor

Your score is
The average score is 58%
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0%

11

Case of the week

27 September 2021

1 / 2

In a patient with left flank pain, the most likely diagnosis on this non-contrast CT is

Left psoas hematoma

Pancreatic pseudocyst

Left UPJ obstruction

Angiomyolipoma

2 / 2

All of the following are correct about this condition except

It can be congenital or acquired

There is a female predominance

It increases the risk of renal injury

An anomalous vessel can result in this entity

Your score is
The average score is 73%
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0%

6

Case of the week

20 September 2021

1 / 2

The CT findings in this patient with pelvic pain include all except

Sigmoid diverticulitis

Extraluminal air

Pelvic fat inflammation

Abscess

2 / 2

Risk factors for colonic diverticulitis include all except

Obesity

Low fat diet

Low fiber diet

Increasing age

Your score is
The average score is 67%
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0%

32

Case of the week

13 September 2021

1 / 2

On the axial and coronal noncontrast CT images provided the findings are indicative of

Xanthogranulomatous pyelonephritis

Emphysematous pyelonephritis

Medullary sponge kidney

Ureteropelvic junction obstruction

2 / 2

All of the following are true about this entity except

It is more common in uncontrolled diabetics

It is more common in male patients

It is a necrotizing infection of the kidney

Associated thrombocytopenia is associated with a poor prognosis

Your score is
The average score is 42%
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0%