Bacterial Flashcards
Well demarcated, brown-red macular patches that has a wrinkled skin with fine scales
Erythrasma
(Mycobacteria other than tuberculosis (MOTT)) transmit from person to person?
False (considered as opportunistic pathogens )
A rash that is cause by delayed-type hypersensitivity to S. pyogenes exotoxin A
Scarlet fever
a rash that Spares the palms and soles. followed by desquamation.
Scarlet fever
A type of intertrigo that appears as a crustation mainly behind the ears?
Streptococcal Intertrigo
Acute bacteriaI infection that presents with diffuse erythematous eruption associated with pharyngitis
Scarlet fever
An inflammatory dermatitis involving the body folds
Intertrigo
Bacterial infection that has Diffuse blanching erythema
Scarlet fever
Corticosteroids are a predisposing factor for superficial follicular Impetigo of Bockhart?
True
Corynebacteriumminutissim causes?
Erythrasma
Describe follicular impetigo of bockhart ?
staph superficial folliculitis that affects mainly children
With a lesion that appears as a dome-shaped yellow follicular pustale
Erythrasma diagnosis? And what it shows?
Wood’s light. Shows coral-red fluorescence
Erythrasma ttt for extensive cases?
Oral erythromycin for 15 days
Erythrasma ttt for most cases?
Topical antifungal ( Cotrimazole _ miconazole ) for 2 weeks
Folliculitis caused by?
Staph -& usually associated with scabies
M.marinum & M.ulcerans are a Slow growers type from (MOTT) ?
True
Mycobacterium fortuitum, Mycobacterium chelonae, and Mycobacterium abscessus are wich type of (MOTT )
Rapid growers
Presents clinically as multiple small red papules and pustules in hair bearing areawith pri-follicular inflammation
Superficial folliculitis and furunde (deep folliculitis) usually presents with?
Pseudofolliculitis heals with scaring but without keloid formation?
False
Leads to Scarring
Forms keloid
Sandpaper-like rash with small papules
Scarlet fever
Scarlet fever caused by?
Streptococcus
staph superficial folliculitis that affects mainly children
With a lesion that appears as a dome-shaped yellow follicular pustale
Describe follicular impetigo of bockhart ?
Strawberry tongue / circumoral pallor
Scarlet Fever
Superficial folliculitis and furunde (deep folliculitis) usually presents with?
Presents clinically as multiple small red papules and pustules in hair bearing areawith pri-follicular inflammation
The special culture mycobacterial needs to grow
Lowenstein-Jensen
Ttt for scarlet fever?
Penicillin
cephalosporins – clindamycin – macrolides (in penicillin allergy )
M.marinum and M.ulcerans are slow growes?
True
Mycobacterium fortuitum, Mycobacterium
chelonae, and Mycobacterium abscessus are which type of (MOTT)?
Rapid growers
Rapid Growers characterized by rapid growth on
standard media and by lack of pigmentation?
True
Mention TB types that affects the skin from an exogenous source
-TB chancre ( 1ry inoculation complex )
-TB verrucosacutis (warty TB)
-Lupus vulgaris
A type of TB that starts as asymptomatic brownish-red papule or nodule that
eventually forms an ulcer
TB chancre
A type of TB that affects hands, knees and ankles
TB verrucosacutis
The Communest type of cutaneous T.B?
- Lupus vulgaris
Commonest place for lupus vulgarism to appear?
Face & neck (90%)
Buttocks & limbs
Type of exogenous TB that appears at first as asymptomatic sharply demarcated reddish-
brown soft plaque then spread peripherally with healing in
the center
Lupus vulgarism
TB that has a thin contractile non-healing scar (new
lesions appear within the scar).
Lupus vulgarism
A TB type that may involve mucous membranes and may cause Destruction of the underlying structures, severe mutilation
and deformities
Lupus vulgaris
Diascopy test is donefor which TB
Lupus valgani
What is Apple jelly nodule & in which descasedose it happen?
Yellowish spots appear after reducing the vascularity with a glass slide ( diascopy test ) in lupus vulgaris
Scrofuloderma
is a types of TB from endogenous source?
True
Types of TB due to hematogenous spread?
Acute military -TB gumma
a type of TB that affects usually lymph node, bone or joint as a results from direct involvement of the skin
overlying a TB focus
Scrofuloderma
A type of TB with a bluish red
subcutaneous nodule that softens and ruptures, to form an ulcer or sinus then
heals with scarring
Scrofuloderma:
A TB with generalized erythematous papules, nodules, ulcers and wide
spread internal tuberculosis.
Acute military
A TB that represents as subcutaneous nodules that may break to form a
tuberculous ulcer or sinus
TB gumma
