Nine questions on the examination of hair and scalp
Examination of hair and scalp
Created 2020.
This exercise will ask you a set of nine questions on the examination of hair and scalp. Each question contains only one correct answer.
If you want to read up on it, you can do so by clicking on the links below.
Learning Objectives
- Examine the hair and identify abnormalities.
- Describe hair abnormalities in terms of quantity and quality.
Editor: Adjunct A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand
Examination of hair and scalp
Created 2020.
This exercise will ask you a set of nine questions on the examination of hair and scalp. Each question contains only one correct answer.
If you want to read up on it, you can do so by clicking on the links below.
Learning Objectives
- Examine the hair and identify abnormalities.
- Describe hair abnormalities in terms of quantity and quality.
Editor: Adjunct A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand
1. Select the correct description of telogen hairs:
a. Have short, club-shaped roots
b. Have broken off shaft just above the skin surface
c. The telogen phase lasts about 4 to 7 years
d. Humans have longer scalp hair than other animals due to a longer telogen phase
2. Alopecia areata:
a. Refers to hair loss arising during the catagen stage of the hair cycle
b. Is a usually reversible nonscarring diffuse hair loss, that occurs within days to weeks of starting a new medication or changing the dose
c. Is characterised by hair loss in which one or more round patches appear suddenly
d. Is a distinctive form of familial diffuse hair loss on the frontal scalp of women
3. Grade the severity of female pattern hair loss shown in the image above:
Refer to female pattern hair loss https://www.dermnetnz.org/
a. Grade 1
b. Grade 2
c. Grade 3
d. Grade 4
4. The above image of a localised alopecia reveals:
a. Exclamation mark hairs
b. Tufted folliculitis
c. Empty follicular orifices
d. Black dots
5. When assessing hirsutism in women, look for:
a. Cicatrical alopecia
b. Diffuse, patchy or perifollicular erythema
c. The presence of terminal hair on the scalp, eyebrows and beard
d. Linear bald patches
6. Select the correct description of anagen hairs:
a. Have a pointed tip which grows over several years
b. Present in the short involutional phase of the hair cycle
c. Characterised by short, fine and light-coloured hairs found over most of the body
d. Have a clubbed or bulbous tip and lasts for several months
7. Select the abnormality shown in the image above:
a. Scalp psoriasis
b. Chronic discoid lupus erythematosus
c. Tinea capitis
d. Androgenetic alopecia
8. Select the correct description of tufted hairs:
a. The hair shafts have elliptical cross-sections, axial twisting and scattered areas of splaying
b. Light microscopy confirms that all the hairs are surrounded by a single outer root sheath
c. Appear as bright bands when seen with reflected light
d. Diagnosed by the painless extraction of at least 10 hairs on a hair pull test of which over 80% of the hairs are in the anagen phase
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