Disease Characteristics Flashcards
give examples of FLAT LESIONS
macule
patch
flat lesion with abnormal color
circumscribed area of color change
same plane as normal tissue pigmented due to melanin, blood, or metal <1cm single or in groups normal or pathologic
MACULE
relatively larger pigmented area flat well circumscribed
PATCH (theyre larger than macules but similar)
give examples of MACULE
melanotic macule amalgam tattoo (if small)
give examples of PATCH
snuffer-dipper’s keratosis median rhomboid glossitis amalgam tattoo
give examples of DEPRESSED LESIONS
erosion ulcer
crater like lesion on skin or mucosa loss of full thiccness of epithelium extends into CT usually round, can be irregular may scare can be traumatic, aphthous (recurrent), viral painful
ULCER
soft tissue lesion loss of epithelial cells above basal layer “epithelium is worn away” moist, slightly depressed may be ruptured vesicle, epithelial breakdown or trauma heals well (no scarring)
EROSION
give example of EROSION
erosive lichen planus
give examples of ULCERS
herpetiform aphthae traumatic ulcers primary herpes
give examples of RAISED and SOLID LESIONS
papule
nodule
tumor
plaque
small, superficial elevated <1cm any color sessile or pedunculated may be due to infection, hyperplasia, neoplasia
PAPULE
examples of PAPULE
fibroma
extends deeper than papule raised lump or mass <1cm may project or be detected by palpation asymptomatic or painful
NODULE
example of NODULEs
fibroma neural fibroma retrocuspid papilla (multiple nodules)