Derm Exam Flashcards
(49 cards)
Appendages of skin
hair, nails, sebaceous glands, sweat glands
Primary lesion:
Secondary lesion:
Distribution:
Distinguishing characteristics:
Primary lesion: first recognizable skin lesion
Secondary lesion: evolve from primary lesion due to natural history or disorder (eg crusts in chicken pox) or because of scratching or infection
Distribution: referst to where on body lesions are found (if you have multiple lesions)
Distinguishing characteristics: based on epidemiology, size or associated systemic or lab findings
What are the 2 types of hair?
–Vellus hair – short, fine, inconspicuous and usually unpigmented (peach fuzz).
–Terminal hair – coarser, thicker and pigmented. Example: - scalp, eyebrows, pubic region.
3 growth phases of hair
–Catagen phase – transitional phase – 3%
–Telogen phase – resting phase – 10-15%
–Anagen phase – Growing phase – 85-90%
What is shown in this picture?
Nail Pits
Psoriasis – Small pits in the nails.
Nail may thicken.
What is this symptom called?
Clubbing – rounding of the
nail. Soft and spongy.
Etiologies:
Congenital
Chronic hypoxia
Heart disease
Lung cancer
Hepatic cirrhosis
What is this deformity of the nail called? What can bring it on?
Beau’s Lines
Emerge from the proximal nail folds, may follow an acute or
chronic illness, chemotherapy.
What is this called?
Mee’s Lines
(longitudinal lines)
Emerge from the proximal nail folds, may follow an acute or
chronic illness, chemotherapy.
What is this condition?
Onychomycosis
Fungal nail.
Name the condition!
Subungual Hematoma
Trauma to the nail.
What causes the following skin colors?
–Brown -
–Yellow –
–Red -
–Bluish-red -
–Brown - Melanin
–Yellow – Carotene, Jaundice (bilirubin)
–Red - Carboxyhemoglobin–(CO poisoning), Polycythemia
–Bluish-red - De-oxyhemoglobin–(cyanosis)
What caused this?
Carbon monoxide poisoning
What are we looking at here?
Jaundice
What are we looking for in the skin portion of the derm exam?
–Color
–Moisture
–Temperature
–Texture
–Mobility and Turgor
–Lesions
What are the affected surfaces? What condition is this typical of?
Extensor surfaces, psoriasis
What are the affected surfaces? What condition commonly presents this way?
Flexor surfaces, atopic dermatitis
What condition is depicted here? What type of skin lesion is this an example of?
Vitiligo
Macule – small flat spot, less than
1.0 cm
Name that skin condition! What type of skin lesion is this an example of?
Café-au-lait spots
Patch – flat spot or lesion greater then 1.0 cm.
Name the skin condition! What type of lesion is this?
Psoriasis
Papule – a raised lesion up to
1.0 cm
What type of lesion is this? What is the classic appearance?
Plaque – a raised lesion greater
than 1.0 cm
Silver look is classic
What is this called? What type of lesion is it an example of?
Dermatofibroma
Nodule – firm, hard lesion, deeper than a papule, greater than 0.5 cm
These lesion questions are legion! What the heck is this? What type of lesion?
Inclusion cyst
Cyst – nodule filled with material, liquid or semi-solid.
Often encapsulated.
What type of lesion is this? What is the condition we are looking at?
Herpes zoster
Vesicles – fluid filled lesions less
than 1.0 cm.
Single or in clusters.
What caused this? What is this lesion called?
Insect bite
Bulla – fluid filled lesion grater
than 1.0 cm.
