Tag: flashcard

Neuroradiology #30

~ EDiR Holders - Dr. Czarniecki; Dr. Ghoneim; Dr. Gümeler; Dr. van Hoyweghen; Dr. Pons; Dr. Tolman ~ Leave a comment

A 6-year-old boy presenting to emergency department with headache, nausea, and vomiting

What do you see?

Intra-axial cystic lesion with mass effect shows CSF signal intensity on all sequences, without enhancement and perilesional edema

Differential diagnosis include

* Parasitic diseases (hydatid cyst) spheric
* Neuroglial cyst may have surrounding gliosis
* Porencephalic cyst surrounding gliosis, communicates with ventricle

Same cystic lesion in superior lobe of left lung

What is the most likely diagnosis?

Hydatid cyst disease
Both lesions were treated by surgery

Emergency #27 – Flashcard

~ EDiR Holders - Dr. Czarniecki; Dr. Ghoneim; Dr. Gümeler; Dr. van Hoyweghen; Dr. Pons; Dr. Tolman ~ 2 Comments

Elbow pain after a fall. What do you see?

Click here to see the answer

Findings

Large joint effusion with the displacement of the anterior fat pad. Mild posterior soft tissue swelling over the olecranon. Fracture line along the lateral aspect of the radial neck. Radial head and articular surface are normal

Diagnosis

Nondisplaced radial head fracture

Teaching points

– Check not only the bones and joints but also the soft tissues
– Search and interpret the findings in two different positions
– Pain always withholds a story behind

Head and Neck #4 – Flashcard

~ EDiR Holders - Dr. Czarniecki; Dr. Ghoneim; Dr. Gümeler; Dr. van Hoyweghen; Dr. Pons; Dr. Tolman ~ Leave a comment

CT – Coronal + C
CT – Axial + C
Where is the abnormality?​

Left side of the neck.

How can the abnormality be described?​

Multiple enlarged neck clustered lymph nodes, with some of them showing necrosis.

What is the differential diagnosis?

Infectious lymphadenitis: such as TB or pyogenic lymphadenitis.
Metastasis: particularly from head and neck malignancies.
Treated lymphoma or lymphoma in immune compromised patient.

What is the final diagnosis

TB lymphadenitis

Emergency #26 – Flashcard

~ EDiR Holders - Dr. Czarniecki; Dr. Ghoneim; Dr. Gümeler; Dr. van Hoyweghen; Dr. Pons; Dr. Tolman ~ 1 Comment

A 30-year-old female with right shoulder pain.

4 images of the right shoulder were obtained (axillar, Y-view, internal rotation, external rotation)

Click here to see the images
Y-view

Internal rotation
External rotation
Findings:

Findings


Right shoulder: There is a nondisplaced fracture involving the inferior aspect of the glenoid, with involvement of the articular surface. Glenohumeral joint shows normal alignment. Acromioclavicular joint is normal. No soft-tissue calcification. No fracture or dislocation

What is the most likely diagnosis?

The most likely diagnosis is Hill-Sachs lesion

Hill-Sachs lesions are a posterolateral humeral head compression fracture. Typically occurs secondary to recurrent anterior shoulder dislocations. It is often associated with a Bankart lesion of the glenoid

Internal Rotation
External Rotation

These lesions are best seen following relocation of the joint. It appears as a sclerotic line running vertically from the top of the humeral head towards the shaft. A wedge defect may be evident in large lesions. The lesions are better appreciated on internal rotation views

Neuroradiology #24 – Flashcard

~ EDiR Holders - Dr. Czarniecki; Dr. Ghoneim; Dr. Gümeler; Dr. van Hoyweghen; Dr. Pons; Dr. Tolman ~ Leave a comment

89-year-old female patient with aplastic anemia. Showing CT images without contrast media. What do you see?

Click here to see the answer

CT images without contrast media: Subacute isodense right subdural hematoma, revealed with narrowing of right cerebral hemispheric sulci and right lateral ventricle and minimal midline shift (red arrows), acute left subdural hematoma (blue arrow)

Musculoskeletal #12 – Flashcard

~ EDiR Holders - Dr. Czarniecki; Dr. Ghoneim; Dr. Gümeler; Dr. van Hoyweghen; Dr. Pons; Dr. Tolman ~ Leave a comment

43-year-old healthy patient:
– with fibromyalgia
– No other relevant medical history

What do you see on the following images?

Click here to see the answer

IMAGING FINDINGS:

Multiple focal sclerotic bone lesions clustered around joints in both knees and sacroiliac joints

DIAGNOSIS:

Osteopoikilosis

TEACHING POINTS:

Sclerosing bony dysplasia characterized by multiple enostoses
Typically clustered around joints, aligned parallel to trabeculae. Usually 1-3 mm, they can reach up to 20 mm
Rare condition; inherited; asymptomatic; incidental
Important to avoid misdiagnosis with other relevant pathologies such as metastasis

Head and Neck – Flashcard #2

~ EDiR Holders - Dr. Czarniecki; Dr. Ghoneim; Dr. Gümeler; Dr. van Hoyweghen; Dr. Pons; Dr. Tolman ~ Leave a comment

What do you see on the following images?

Click here to see the answer

Dehiscent jugular bulb

The jugular bulb bulges into the left middle ear cavity with absence of the sigmoid plate separating the jugular bulb from the middle ear in keeping with dehiscent jugular bulb.

It is one of the causes of pulsatile tinnitus, patients can also present with conductive hearing loss if the jugular vein contacts the tympanic membrane.

Head and Neck – Flashcard #1

~ EDiR Holders - Dr. Czarniecki; Dr. Ghoneim; Dr. Gümeler; Dr. van Hoyweghen; Dr. Pons; Dr. Tolman ~ Leave a comment

Axial CT bone window

What do you see on this image?

Click here to see the answer

Otosclerosis

There is a small lucency anterior to the vestibule, just lateral to the basal turn of the cochlea. Consistent with fenestral otosclerosis.

There are two types of otosclerosis:

1- Fenestral: is the most common type. It involves the bone anterior to the oval window and causes conductive hearing loss.
2- Retro-fenestral: involves the cochlear capsule and causes sensorineural hearing loss.
The two types can occur simultaneously.

Abdominal #9 – Flashcard

~ EDiR Holders - Dr. Czarniecki; Dr. Ghoneim; Dr. Gümeler; Dr. van Hoyweghen; Dr. Pons; Dr. Tolman ~ 1 Comment

31-year-old male with:

* Right upper quadrant & epigastric pain
* History of gastric bypass surgery

What aquatic sign is used for the finding in the red circle?

Whirlpool sign

What is shown at the blue arrow?

The transition point from dilated small bowel (with the “small bowel feces sign”) to non-dilated small bowel at the site of internal herniation through a mesenteric defect.