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Pathology > Histopath > Flashcards

Histopath Flashcards

1
Q

codmans triangle

A

osteosarcoma

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2
Q

t(11:22)

A

ewings sarcoma

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3
Q

cotton wool calcification

A

enchondroma

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4
Q

soap bubble appearance

A

giant cell

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5
Q

CD99+

A

ewings sarcoma

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6
Q

shepherds crook deformity

A

fibrous dysplasia

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7
Q

chinese letters

A

misshapen bone trabeculae - fibrous dysplasia

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8
Q

onion skinning of periosteum

A

ewings sarcoma

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9
Q

malignant bone tumour >40 years

A

chondrosarcoma

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10
Q

sunburst appearance

A

osteosarcoma

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11
Q

brown tumour

A

hyperparathyroidism (osteitis fibrosa cystica)

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12
Q

loosers zones

A

pseudo fractures = osteomalacia

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13
Q

radiolucency with sclerotic rim on xray

A

osteoid osteoma

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14
Q

Olloers syndrome

A

multiple endrochondromas

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15
Q

maffuci’s syndrome

A

multiple endrochondromas + haemangiomas

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16
Q

tumour in hands/feet

A

endrochondrome - pain and swelling

benign tumours of CARTILAGE

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17
Q

(McCune-)Albright syndrome

A 
Fibrous dysplasia (bone replaced by fibrous tissue) 
\+
endocrine symptoms: cafe au lair spots, precocious puberty etc
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18
Q

cartilage capped boney outgrowth from bone

A

osteochondroma

most common benign bone tumour

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19
Q

type of bone responsible for calcium metabolism

A

cancellous

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20
Q

pathological/immature bone

A

woven

21
Q

type of bone responsible for support and protection

A

cortical (80%)

22
Q

cradle cap

A

seborrhoeic dermatitis (yellow scales = yeast)

23
Q

Auspitz sign

A

pin point bleeding - psoriasis

24
Q

test tubes in a rack

A

clubbing of tete ridges = psoriasis

25
Q

saw toothing of tete ridges

A

lichen planus

26
Q

lacy appearance of mucous membranes

A

lichen planus

27
Q

erythema multiforme

A

annular target lesions - hands and feet
Causes:
infection (HSV, mycoplasma, fungi)
drugs (penicillin, salicylates, anti-malarials, phenytoin)

28
Q

nikolsky (-)

A

pemphigoid

29
Q

nikolsky (+)

A

pemphigus

30
Q

sandpaper like scaly lesions

A

actinic keratosis

31
Q

bowens disease

A

flat red scaly patches = squamous cell carcinoma in situ

32
Q

dome shaped nodule, necrotic crusted centre, clears spontaneously after a few weeks

A

keratoacanthoma

33
Q

rodent ulcer

A

BCC

34
Q

salmon pink rash

A

pityriasis rosea

35
Q

rash in christmas tree distribution

A

pityriasis rosea

36
Q

fifth disease

A

parvovirus b19 = slapped cheek syndrome

37
Q

sixth disease

A

roseola infantum aka exanthema subitum = HHV-6

38
Q

kawasaki

A 
red mouth
eyes
LN
heart
rash on hands and feet
 5 days
39
Q

buergers

A

smoking
corkscrew appearance on angiogram
ulceration of feet and fingers

40
Q

gottron papules

A

violet scaley plaques over hand joints - polymyositis + dermatomyositis

41
Q

anti-Jo1

A

polymyositis + dermatomyositis

42
Q

LE bodies

A

SLE

43
Q

HLA DR3

A

SLE

44
Q

HLA DR5 +DRw8

A

limited/diffuse scleroderma

45
Q

churg straus

A

pANCA
asthma
eosinophilia

46
Q

haemodialysis ass amyloidosis

A

deposition of beta 2 microglobulin

47
Q

secondary amyloidosis

A

AA amyloidosis

secondary to chronic infections/inflammation

48
Q

primary amyloidosis

A

AL amyloidosis

ass with multiple myeloma/plasma cell dyscrasias

Pathology (4 decks)

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