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Findings > Imaging > Flashcards

Imaging Flashcards

1
Q

NEURO

Stroke (Ischemic)

  • MRI (diffusion-weighted = highest sensitivity for early ischemia) -> ?
  • Non-Contrast CT -> ?
A
  • Bright (3 - 30 mins)
  • ABSENCE of bright areas + dark abnormality (12 - 24 hrs)
  • ** Absence of bright areas very accurate to exclude hemorrhage.***
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2
Q

NEURO

Epidural Hematoma

CT -> ?

A

Lens / “biconvex disk”-shaped lesion. Not crossing suture lines.

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3
Q

NEURO

Subdural Hematoma

CT -> ?

A

Crescent-shaped lesion. Crosses suture lines. Midline shift.

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4
Q

NEURO

Pilocytic Astrocytoma

A

“Cystic lesion” with “mural nodule”

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5
Q

NEURO, MICRO

Cryptococcus neoformans infection

A

“Soap bubble” lesions in brain

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6
Q

GI

Colorectal Cancer (CRC)

Ab XR -> ?

A

“Apple core” lesion

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7
Q

GI

L CRC

A

“Napkin ring” lesion

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8
Q

GI

Ulcerative Colitis

Barium Enema XR -> ?

A

“Lead pipe” appearance of colon

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9
Q

GI

Crohn Disease

Barium XR -> ?

A

“String Sign”

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10
Q

GI

Duodenal Atresia / Stenosis / Webs,
Malrotation of Gut,
Annular Pancreas

A

“Double-Bubble Sign”

2 air-filled structures in UPPER abdomen with little or no air below

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11
Q

GI

1ry Sclerosing Cholangitis

ERCP -> (2)?

A

ERCP: Intra- + Extrahepatic bile ducts
- Concentric “onion skin” bile duct fibrosis
- Alternating strictures / dilations = “beading” pattern
(uninvolved regions dilated)

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12
Q

GI

Chronic Pancreatitis

Imaging with Contrast -> (2)?

A
  • “Chain of lakes” pattern (due to DILATION of pancreatic ducts)
  • Calcification
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13
Q

GI

Gallstone Ileus

A

“AIR in biliary tree”

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14
Q

CV

Tetralogy of Fallot + RVH

XR -> ?

A

“Boot-shaped heart”

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15
Q

CV

Transposition of Great Arteries

ECHO -> ?

A

Aorta lying ANT. to Pulm Art.

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16
Q

CV

Dilated / Congestive Cardiomyopathy

  • CXR -> ?
  • U/S -> ?
A
  • “Balloon” appearance on CXR

- Dilated heart on U/S

17
Q

CV

Acute Decompensated Heart Failure (ADHF)

CXR -> (5)?

A

CXR:

  • Alveolar edema (perihilar)
  • Cephalization of pulm vessels
  • Pleural Effusions
  • Kerley B lines
  • Cardiomegaly
18
Q

HEME

Sickle Cell Anemia + B-Thalassemia

Skull XR -> ?

A

“Hair on end” / “Crew-Cut” appearance

due to marrow expansion due to↑erythropoiesis

19
Q

HEME

Multiple Myeloma

XR -> ?

A

“Lytic” / “Hole-punched” bone lesions

20
Q

RENAL

Medullary Cystic Sx

U/S -> ?

A

“Shrunken kidneys”

21
Q

RESP

Pleural Effusion

CXR -> (CLUE)?

A

CXR: BLUNTING of costophrenic angles

22
Q

RESP

Obstructive Pulmonary Dz

CXR -> (2)?

A

CXR:

  • Hyperinflated lungs
  • Flattened diaphragm
23
Q

RESP

Kerley B Lines

Def’n, Significance?

A

CXR: Short horizontal lines perpendicular to pleural space.

EDEMA of interlobular septa.

24
Q

RESP

Interstitial Pulmonary Fibrosis

CXR / CT -> (2)?

A

CXR:

  • “Honeycomb lung”
  • Diffuse reticular opacities
25
Q

RESP

Epiglottitis (H influenzae)

XR (Lateral) -> ?

A

“Thumbprint sign”

thickening of the epiglottis, as seen on Lat Neck XR

26
Q

RESP

ARDS

CXR -> ?

A

CXR: Bilat airspace opacification

27
Q

RESP

NRDS

A

“Ground glass” appearance of Lung (due to diffuse granularity)

28
Q

RESP

1ry Pulmonary Hypertension

CXR -> (ENLARGEMENT of 2)?

A

CXR: ENLARGEMENT of

  • Pulm art
  • R.V
29
Q

RESP

Pneumothorax

CXR -> ?

A

CXR: White visceral pleural line. Pulm vessels not visible beyond line.

30
Q

RESP

Tension Pneumothorax

CXR -> (CLUE)?

A

CXR: Mediastinum shifted AWAY from affected side.

31
Q

RESP

Lung Cancer

A

“Coin lesions” on CXR

32
Q

MSK

Osteoporosis

A

“Bone-in-Bone” appearance on XR

33
Q

IMMUNO

DiGeorge Sx (Thymic aplasia) + SCID

  • CXR -> ?
A
  • CXR -> Absent Thymic shadow
34
Q

MSK

Ankylosis

A

“Bamboo spine”

vert fusion

35
Q

MSK

Psoriatic Arthritis

A

“Pencil in cup” deformity on XR

36
Q

MSK

Osteosarcoma, Ewing Sarcoma, Pyogenic Osteomyelitis

A

“Codman Triangle” / “Sunburst pattern” on XR.

Periosteum raised from bone creating a triangular area

37
Q

MSK

Osteoclastoma (Giant Cell tumor)

A

“Double-Bubble” / “Soap Bubble” lesion in bone

38
Q

MSK

Ewing’s Sarcoma

A

“Onion skin” appearance of bone

39
Q

MSK

Chondrosarcoma

A

“Expansile glistening mass” w/in medullary cavity

Findings (19 decks)

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