Pathology · single question
Which of the following is NOT an effect of radiation exposure on hair?
Show answer and explanation
Correct answer: B. Androgenetic alopecia
- A. Anagen effluvium is the classic radiation/chemotherapy hair loss, from direct damage to rapidly dividing matrix cells in actively growing follicles.
- B. Correct (NOT a radiation effect). ANDROGENETIC ALOPECIA (male/female pattern baldness) is a genetically determined, hormone-mediated (DHT) process of progressive follicular miniaturization. It has no relationship to radiation exposure.
- C. Telogen effluvium — diffuse shedding after a physiologic stressor — can follow radiation.
- D. Follicular fibrosis and scarring after higher radiation doses can cause permanent, irreversible hair loss in the field.