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Medicine > Dermatology > Flashcards

Dermatology Flashcards

1
Q

Cutaneous pyoderma
Thickly crusted erosions or ulcerations
Puched out lesions

Occluded footwear

Homeless and solider

Buttocks and LE

A

Ecthyma

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2
Q

Ecthyma Dx

A

Culture of staph aureus

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3
Q

Pyoderma that begins with hair follicle

A

Folliulculitis

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4
Q

Most common etiology of folliculitis

A

Staph aureus

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5
Q

Small, fragile dome shaped pustule

Superficial folliculitis

A

Bockhart impetigo

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6
Q

Deep folliculitis on beard area, coalescing

A

Sycosis barbae

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7
Q

Hot tub folliculis etiology

A

Pseudomonas aeruginosa

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8
Q

Folliculitis Dx

A

Clinical signs
Gram stain
Culture

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9
Q

Folliculitis Tx

A

Warm saline compress

Topical mupirocin, clindamycin

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10
Q

P aeuroginosa folliculitis Tx

A

Ciprofloxacin

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11
Q

Deep seated inflammatory nodule

Preceding, more superficial evolving into an abscess

A

Furuncle/boil

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12
Q

Furuncle Etiologic agent

A

Staph aureus

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13
Q

Deep seated inflm nodule
Multipel sinuses

More extensive
Deeper communicating and infiltrating lesion
Closely set furuncles

A

Carbuncles

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14
Q

Red and indurated
Multiple pustule
Yellow gray irregular crater
Permanent scar

A

Carbuncle

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15
Q

Carbuncle predisposing factors:

A

Obese
Blood dyscrasia
Glucocorticoids
Immunodeficiency

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16
Q

Inflammation of proximal nail fold or eponychium

A

Paronychia

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17
Q

Paronychia agent

A

Staph aureus

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18
Q

Paronychia Tx

A

ID
Mupirocin
Fusidic acid
Dicloxacillin

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19
Q

Well-defined but irregular reddish-brown patches occuring in intertriginous area or fissuing white maceration of toes

Males

Genitocrural area

A

Erythrasma

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20
Q

Erythrasma etiologic agent

A

Corynebacterium mutissimum

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21
Q

Erythrasma most common site

A

Web spaces of feet

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22
Q

Differentiates erythrasma and tinea

A

Wood’s lamp exam

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23
Q

Erythrasma in Wood’s lamp

A

Coral fluorescence

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24
Q

Gram + infection with toxin production

A

Bullous impetigo

Staph scald syndrome

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25
Q

Bullous form impetigo etiologic agent

A

Staph aureus

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26
Q

Nonbullous form etiology in developing countries

A

GABHS

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27
Q

More common
Children of all ages and adults
Honey colored crust

A

Non bullous impetigo contagiosa

28
Q

Non bullous impetigo contagiosa etiologic agent

A

S aureus

GABHS

29
Q

Newborns and young children
Caused by coagulase + staph aureus

Face, trunk, extemities, buttocks, perineum

Ritter disease/Pemphigus neonatorum -extensive

A

Bullous pemphigus

30
Q

Impetigo Tx

A

Mupirocin
Retapamulin
Fusidic acid

31
Q

Generalized exanthematous disease consisting of cutaneous tenderness and widespread superficial blistering and denudation

A

Staphylococcus scalded skin syndrome

32
Q

Fain, orange red macular exanthem or uniform
Erythema sparing mucosal surface
Paper like denudation of skin

A

Staph Scalded Skin Syndrome

33
Q

SSSS toxin

A

Exfoliatin A and B targetting spinosum and granulosum

34
Q

Very thin walled, flaccid blister

Easily disrupted

A

Nikolsky sign

35
Q

+ Nikolsky

A

SSSS
SJS
TENS
Pemphigus vulgaris

36
Q

SSSS Tx

A

Anti staph IV

Mupirocin

37
Q

Non Necrotizing Dermal infection

A

Cellulitis

Erisypelas t

38
Q

Trauma or injury breaking skin
Extends deep to dermis and subcutaneous tissue

Erythema, tenderness
Lack distinct margins between affected and normal skin

Occasionally + crepitus on palpation

A

Cellulitis

39
Q

Superficial cutaneous cellulitis

Marked dermal lymphatic involvement

Venous stasis, lymphedema, intertrigo, obesity

Face or le

Demarcates normal skin and lesion

Peau d’ orange

Caused by GABHS

More systemic

A

Erysipelas

40
Q

Erysipelas Tx

A

Penicillin

Amoxicillin

41
Q

Nec Soft tissue types

A

Polymicrobial type I

Monomicrobial type II

42
Q

Polymicrobial infection with mix of anaerobes and facultative species

Peptostrep
Bacteroides

Most common form of Nec Fascitis

Predisposing: surgery, IV drug

A

Type I polymicrobial

43
Q

Caused by Group A strep
Hemorrhagic bullae
Flesh eatinf bacteria

A

Monomicrobial Type II

Flesh eating

44
Q

Nec Fasc Tx

A

Surgical exploration

Ampi/Sul

45
Q

Grouped vesicles
Crusing over the 1/3 of the lower lip
Pain, burning sensation
Occasional pruritus

A

HSV1
Oral labial herpes
Childhood
Orofacial disease

46
Q

Painful group vesicles
Central crusting
Red base on shaft of penis
Most prevalent sexually transmitted disease world wide
Most common cause of ulcerative genital disease

47
Q

Painful grouped, confluent vesicles on base of distal finger

Tzanck smear done with multinucleated giant cells

A

Herpetic whitlow

HSV 1 and 2

48
Q

HSV Tx

A

Acyclovir 200 mg 5x a day

Valacyclovir 1g BID

49
Q

Petechiae on soft palate
Palpable cervical lymph node
Fever

3 day measles

Inhalation of aerosolized respiratory droplet

Period of infectivity: end of incubation period until disappearance of rash

Exanthema and lymphadenopathy

50
Q

Petechiae on soft palate

Also in infectious mononucleosis

A

Forccheimer sign

51
Q

Non pruritic macule and pacule
Beginning on forehead gradually progressing to the neck, trunk and extremities

URTI (high grade fever, cough, coryza and conjunctivitis)

Tiny white lesions surrounded by erythematous halo

Grains of sand over buccal mucosa

A

Measles

Rubeola

52
Q

Centrifugal spread
High grade fever preceding rash

+ Koplik spots

A

Measles Rubeola

53
Q

Small whitish lesions over buccal mucosa

A

Koplik spots

54
Q 
Loss of appetite
Incessant crying of child upon feeding
Few ulcerative oral lesions
Painful oral ulcer
Linear papulobesicular lesions over sides

Vesicles on hand and foot

A

Hand foot mouth disease

Coxsackie A

55
Q

Droplet infection
Fever, chills, malaise, headache, anorexia

Face -> scalp -> trunk

Lesions in all stages are present on the body at the same time

A

Varicella/Chicken pox

56
Q

Dewdrops on rosepetals

Erythematous macule

57
Q

Varicela Tx

58
Q

Closely grouped vesicles on erythematous base

Dermatomal pattern

A

Herpes Zoster

59
Q

Pain >60
Paresthesia

Most common lesion: T3-L2

A

Herpes zoster

60
Q

Deep plantar/palmar wart

61
Q

Wart tx

A

Salicylic acid
Lactic acid
Trichloroacetic acid
Electrodessication

62
Q

Small pink pearly or flesh colored dome-shaped papules

Pox virus

A

Molluscum contagiousum

63
Q

Molluscum tx

A

Curettage
Canthardin
Retinoid
Imiquimod

64
Q

Molluscum pathognomonic for

A

Henderson Paterson bodies

65
Q

Honey colored crust mostly around nasal orifice

A

Non bullous

66
Q

Bilster and rupture in neonates

A

Bullous impetigus

Medicine (29 decks)

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