Apr9 M1-Intro to derm + derm ddx Flashcards Preview

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Flashcards in Apr9 M1-Intro to derm + derm ddx Deck (37)
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1
Q

components of the integument to check on physical exam

A
  • skin
  • hair
  • nails
  • visible mucosa
  • sweat glands
  • vellus hair
  • sebaceous glands
2
Q

total body skin exam: how often?

A
  • Hx of skin cancer = once a year
  • no hx = once in middle age
  • immunosuppressed or lot of beauty marks = regularly
3
Q

if someone has a melanoma what’s more likely? A: they get a 2nd one B: their sibling gets a 1st one

A

B: that sibling gets a 1st one. so sibling should get ANNUAL EXAM

4
Q

lichen planus areas of manifestations and how it looks

A
  • buccal mucosa = thin white lines on inside cheek

- skin and mucosa

5
Q

Wood’s light does what

A

light using UVA to see deep in skin and accentuate

6
Q

dermoscopy does what

A

accentuate image

7
Q

KOH testing for what

A

fungal culture

8
Q

cytology for what

A

bacterial culture

9
Q

patch test for what

A

allergy testing (done on the back) (dermato = for contact rxs only)

10
Q

imaging in derm for what

A

cancer

11
Q

tiny grouped vesicles dx + exact name of lesion

A
  • basic herpes simplex

- vesiculobullous lesion

12
Q

(EXAM) name of flat lesion <0.5 cm

A

macule

13
Q

(EXAM) name of flat lesion >0.5 cm

A

patch

14
Q

(EXAM) raised-basic flat lesion <0.5 cm name

A

papule

15
Q

(EXAM) raised-basic flat lesion >0.5 cm name

A

plaque

16
Q

(EXAM) name of lesion raised with depth somewhere along its surface + <0.5 cm in size

A

nodule (can be a cancer)

17
Q

(EXAM) name of lesion raised with depth somewhere along its surface + >0.5 cm in size

A

tumor (can be a cancer)

18
Q

(EXAM) name of lesion raised with fluid <0.5 cm

A

vesicle

19
Q

(EXAM) name of lesion raised with fluid >0.5 cm

A

bulla

20
Q

(EXAM) name of special raised lesions

A

urticaria, cyst, pustule

21
Q

(EXAM) names given to certain surface changes

A

scale, crust

22
Q

(EXAM) name of certain lesions of lack of substance (reverse of raised)

A

atrophy, erosion, ulcer

23
Q

(EXAM) morphology details you can give about a derm lesion

A
  • colour and distribution of colour
  • shape (round, oval, polygonal, acriform, annular, serpiginous, anny word works)
  • palpation (consistency, tenderness, temperature, mobility)
  • grouping of the lesions
  • distribution and location of the lesions
24
Q

name of a raised lesion of less than 0.5 cm with a depression in its center

A

umbilicated papule

25
Q

what happens after a while to vesicular lesions (like in herpes zoster or herpes simplex)

A

get hemorrhagic or pustular (secondary phenomenon)

26
Q

what happens after a while to bullae

A

can rupture (have to recognize erosions that are ruptured bullae)

27
Q

urticaria charact

A
  • raised special lesion
  • one lesion exists <24 hrs
  • edema and erythema
28
Q

cyst charact

A
  • raised-special lesion
  • fluid filled
  • encapsulated
  • lined by true epith
  • NO sebaceous glands so NOT a sebaceous cyst
  • dead skin cells inside
29
Q

epidermoid cyst def

A

cyst with epith and epidermal cells covering it

30
Q

pustule charact

A
  • raised-special lesion
  • not clear fluid, fluid is pus (neutrophils)
  • can be neutrophils without necessarily infection, just inflam
31
Q

scaling lesion charact

A
  • desquamation of skin surface

- flaking from stratum corneum

32
Q

crust lesion charact

A
  • surface
  • hardened deposit from serum blood or pus
  • may be removable
33
Q

atrophy lesion charact

A

-wasting of tissue or failure to form
-thinner and depressed
EXAMPLE = STRIAE

34
Q

erosion lesion charact

A
  • loss of all or part of epidermis (example in blistering disease or ruptured bullae)
  • moist circumscribed depression
35
Q

ulcer lesion charact

A
  • loss of epidermis + all or part of the dermis + may be subcutaneous and reach the bone
  • circumscribed depression
36
Q

most important lesion to know about in hx

A

primary (earliest) lesion that appeared

37
Q

papulosquamous lesion charact

A
  • macule(s) or patch(es)
  • may be a bit raised
  • may be red, edematous

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