Dermatology Flashcards
3 epidermis cell types
Keratinocytes
Melanocytes - makes melanin
Langerhans cells - immune
The dermis is composed of a matrix of…
Collagen and elastin
Macule
small (<5mm) impalpable lesion
Patch
Large (>5mm) impalpable lesion
Papule
Small (<5mm) raised area
e.g. wart
Plaque
Large (>5mm) raised area
e.g. psoriasis
Nodule
swelling within the surface of the skin
Vesicle
Small (<5mm) serous fluid filled lesion
Bulla
Large (>5mm) serous fluid filled lesion
Pustule
Small (<5mm) pus filled lesion
Abscess
Large (>5mm) pus filled lesion
Erosion
Loss epidermis
Ulcer
Loss of epidermis and dermis due to skin necrosis
Weal
Dermal oedema
What swab type should be used if a bacterial infection is suspected?
Charcoal swab
Ask for M,C&S (microscopy, culture and sensitivities)