د رزان شغل طلاب

A-molluscum contagiosoum : peary white rounded ,dom shape, papule with central umbilicated in the periorbital area
Cause: pox virus
RX: surgical removal ,chemicals
B- impetigo contagiosoum : erythromatous area with adehernt crust on the nose lesions are present in all stages of development. Pustule, bullae, erosions with collarette scales

Cause: staph . Aurus

RX: general measures
Toical: fucidin cream
Systemic : co-amoxocillave

Folliculitis : painful tender boil in the nose

Cause : staph
TX: the same preveos slide




Ecthyma : ulcer with adherent crust heal with scar in the knee
Cause : staph
TX: the same prevous slide
Ecthyma: Thickly black crusted erosion/ulcer with surrounding erythema on the leg.
The lesions are tender and indurated.
The etiology is streptococci or S. aureus or both.
Therapy is cephalexin.

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Scarlet fever : generalized macule papularr eruption ,strawberry tongue

Cause: strep infection
RX: general measure (avoid itching)
Topical and systemic measure

Erythrasma: erythmatous patch in the axilla

Cause : corynebacterium it is part of flora of skin but under some condition (heat ,humidity)
It well prolifrate & cause allergy
DX: wood light give coral pink flurescence
RX: bacteriostatic AB ,erythromycin , (topical)
If sever systemic antibiotic




Ersipelas: well marginal painful and swellen .edematous area usually on the face and lower limb(foot)
Cause : b- hemolytic strep
TX: oral antibiotic pencillin v



t
Cutanous anthrax : life threating condition nodule with central ulcer & black ishcar & the hand edematous
Because of two toxin ( edematous toxin & necrolytic toxin )
Cause : bacillus anthrasis , gram +ve ,spore forming bacillus ,
Spread by form animal

Infectious folliculitis: P. aeruginosa or “hot tub” Multiple follicular

pustules are present on the trunk appearing 3 days after bathing in a hot
tub. P. aeruginosa was isolated on culture from a lesion. The lesions resolved
spontaneously within a week
Cause : psedomonous aeuruginosa
TX : ciprofloxacin


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Infectious folliculatis , deep sycosis

Confluent follicular pustules forming tender thick erythematous plaqe on the upper lip
Cause :staph
D,D: tinea barbae with keratin formation
TX : topical AB ,fucidic acid cream
Oral AB : cephalexin

Impetigo contagiousum :erythematous sore area with yellowish gold crust (honey crust)

Cause : staph aureus
RX:1- general measures
2- topical measures : a- removal of crust with normal saline with anti bacterial toxin to ease penteration of topical AB
B-fucidine AB , erythromycin ,tetracyclin ,lesion wet so we use cream
3- systemic AB :erythromycin ,co-amoxocillave in sever case methicilline
If patien hase pencilline allergy use erythromycin
If injectable : vancomycine






Ecthyma :large circum scribed ulcer with onecrotic base & surrounding erythema in the pretibial region
Cause : strep ,staph or both
TX : SYSTEMIC AB



Paranychia : very painful ,tender,swelling,contain pus common in house wife on distal phalax
Cause: staph
TX: general measure
1-avoid truma 2-avoid water contact 3-wear gloves in addition to other measure
If it is very sever short course of AB include pencillin or cephalosporin ,clindmycin




Carbuncle : very large inflamatory plaques studed with multiple pustule ,some of which have ruptured draining pus on the nape of the neck
Surronded by erythema and edema
Cause : staph
TX: when there is pus centraly surgical drainage & systemic AB is indicate d




Scalded syndrom : fever, slaphing of skin because of epidermolytic toxin of bacteriacause : staph



Tinea corporis :pruritic rounded ,annular,red scaling well marginateed ,patch,distinguish,by prescule of mycelium in scale
Cause :epidermophytone (zoonotic infection)characterized by
1-it is more sever
2-you could elminate the source
RX:general measure (avoid scrabing)
TX:topical anti fungle azole group (fungostatic)
Systemic AB: if
1-failur of topical
2-sever inf
3-wide spread diseas
4-immunocomprised patient
5-if there is tinea capitus or tinea anguam

Tinea capitis : patch pf hair loss with underling area of erythema (inflamed skin)

D.D: alopecea areata
Cause : fungal infection (trichophyton and microsporeum)
TX: oral griseofluvin & keto canazol shmpo for reduce transmission

Black dot type of tinea capitis

Ferun type sever inflamatory type of tinea capitis

Ferun type (scaring type) : honey comb destruction of hair shaft
Caused by : trichophyton schoe nleinil

Candidiasis : is ifection of skin with satellite lesion in intertrigo area

Cause :candida albicans
TX: topical & systemic midazole
We can confirm dignosis by koh show psedohyphae