mycobacterium infection of skin
- tuberculosis
- non tuberculosis : do not transmits from human to human , usually resistance to anti-TB drug
clinical mycobacterium tuberculosis
- tuberculous chancre : undermined edge , no pain , chronic ulcer , lymphadenopathy [rare]
- acute miliary TB : usually in children after fever with rash , red [macule , papule , vesicle , purpura ]with central necrosis click for picture
- Lupus vulgaris [endogenous or exogenous transmission ]solitary brown apple jelly [diascopic ]plaque smooth surface or mild scale click for picture
- tuberculosis verrucosa cutis : exogenous , solitary erythematous rough plaque with crust and pus click for picture
- scrofuloderma : endogenous , painless hard nodule then soft and rupture in to pus drainage sinus tract click for picture
- papulonecrotid tuberculid : dark red papule with central necrosis , leave atrophic scar click for picture
- lichen scrofurosum : lichenoid eruption minute papule click for picture
- erythema induratum : dark red nodule and papule click for picture
laboratory
- skin biopsy + AFB
- tuberculin skin test
- tissue culture [NMT culture on Lowenstein Jasen media ] [8 weeks ]
- PCR more rapid more specific
medication
- TB : 9 month IRZE
- NTB : depend on sensitivity
- cryotherapy
Discussion1 Comment
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