Exam #4: Skin, Hair, & Nails Flashcards Preview

Clinical Medicine > Exam #4: Skin, Hair, & Nails > Flashcards

Flashcards in Exam #4: Skin, Hair, & Nails Deck (17):
1

What are the different appendages of the skin?

1) Hair
2) Nails
3) Sebaceous glands
4) Eccrine sweat glands
5) Apocrine sweat glands

2

What are the ABCDE's of melanoma?

Asymmetry
Borders (irregular)
Color (variation)
Diameter (>6mm)
Evolution (change in size/symptoms)

3

What is basal cell carcinoma?

Most common cause of skin cancer that appears:
- A waxy papule that bleeds easily
- Central crater with rolled borders

4

What are the risk factors for basal cell carcinoma?

Sun exposure

5

What is squamous cell carcinoma?

Second most common skin cancer
- Scaling, crusting, raised nodule that may bleed

6

What are the risk factors for squamous cell carcinoma?

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7

What are the characteristics of a normal mole?

Uniformly tan or brown
All look alike
Round or oval
Clear defined borders
Flat or smooth
Less than 6mm
Found on waist, scalp, breast, sun exposed areas

8

What is a "dysplastic mole?"

An atypical moles that is unusually benign but may resemble melanoma

9

What are the characteristics of a dysplastic mole?

Varied appearance
Irregular borders
Fades in surrounding skin
Smooth, scaly, rough, irregular
>6mm
Found on back, below waist, scalp, breast buttocks

10

What is the difference between vellus & terminal hair?

Vellus= short, fine, inconspicuous, and relatively unpigmented

Terminal= coarser, thicker, more conspicuous, usually pigmented (e.g. scalp & eyebrows)

11

What is a yellow nail an indication of?

Psoriasis
Fungal infection
Chronic respiratory problems

12

What is a darkening nail an indication of?

Drugs
Candida
Hyperbilirubinemia
Chronic trauma

13

What is a green-black nail an indication of?

Injury
Pseudomonas infection

14

What is a single blue or black nail an indication of?

Trauma
Melanoma

15

What are blue nails an indication of?

Cyanosis
Asthma
Cardiac disorder
Severe anemia

16

What are longitudinal red or brown streaks in the nails an indication of?

"Splinter hemorrhages" associated with endocarditis

17

What is Schamroth Sign?

Clubbing of the digits due to increased amounts of vascular connective tissue