Derm quick associations Flashcards
flat spot less than 1 cm - non-palpable, just visible
macule
Flat spot > 1 cm
patch
solid elevated lesion less than 1 cm - palpable
papule
solid elevated lesions > 1 cm, flat topped
plaque
Palpable, solid lesion > 1 cm and not flat topped
nodule
Elevated, circumscribed lesion less than 5 mm containing clear fluid
vesicle
Elevated, circumscribed lesion > 5 mm containing clear fluid
Bulla
itchy, transiently edematous area
wheal
Collection of pus with dermis and deeper skin tissues
skin abscess
infection of hair follicle
purulent material extends through dermis into subcutaneous tissues
Furuncle (boil)
coalescence of several inflammed follicles
carbuncle
gangrene due to chronic severe ischemia -> autoamputaiton
dry
gangrene d/t bacterial infection in moist tissue -> sepsis, poor prognosis
wet
gangrene with crepitus -> septic shock
gas
Clostridium perfringens
HPV 1-4
skin warts
HPV 6, 11
genital warts
Anti-desmosome Ab
Pemphigus vulgaris
Flaccid bullae, + Nikolsky, always has oral lesions, fatal if untreated
Pemphigus vulgaris
Anti-hemidesmosome Ab
Bullous pemphigoid
Tense bullae, no oral lesions, antibodies at dermal-epidermal junction
Bullous pemphigoid
Associated with obesity, DM, malignancy
acanthosis nigricans
caused by complete lack of melanocytes
vitiligo
dark skin discoloration common in pregnant women
melasma
hair loss associated with effects of DHT on hair follicles
androgen alopecia
black velvety plaques on flexor surfaces and intertriginous areas
acanthosis nigricans
Purple red lesion on face that does not regress with age
Port wine stain
Infant with bright red lesion that regress over months two years
Infantile (strawberry) hemangioma
Benign, small red papule that appears on the skin with age
Cherry hemangioma
Bright red papule with radiating blanching vessels
Spider angioma - cirrhosis
Blue, compressible mass that does not regress
cavernous hemangioma
Red pink nodule on a child is often confused with melanoma
Spitz nevus
