Alopecia areata - External and Internal Eye
The course of alopecia areata is unpredictable, with wide variation in duration and extent of disease occurring from patient to patient. In most patients, hair will eventually spontaneously regrow, although recurrences are common. The condition is treatable but cannot be cured.
A 2022 retrospective population-based study in Taiwan showed an increase in retinal diseases among 9909 patients with alopecia areata. The disease extent and prior steroid treatment were not commented on; further studies are needed to confirm an association.
L63.9 – Alopecia areata, unspecified
68225006 – Alopecia areata
Differential Diagnosis & Pitfalls
- Trichotillomania, from the twisting and pulling of hair, may mimic alopecia areata. Hairs are broken off at varying lengths.
- Telogen effluvium from nutritional, hormonal, and drug etiologies can lead to large clumps of hair loss in a similar fashion to alopecia areata. The loss is diffuse, not localized.
- Tinea capitis
- Secondary syphilis
- Loose anagen syndrome
- Androgenetic alopecia – male or female pattern
- Pseudopelade of Brocq / scarring alopecia
Drug Reaction Data