Final answer:
The medical term for a severe case of dandruff characterized by an accumulation of greasy or waxy scales mixed with sebum that stick to the scalp in crusts is called seborrheic dermatitis.
Step-by-step explanation:
The medical term for a severe case of dandruff characterized by an accumulation of greasy or waxy scales mixed with sebum that stick to the scalp in crusts is called seborrheic dermatitis.
Seborrheic dermatitis is a common inflammatory skin condition that primarily affects areas rich in sebaceous glands, such as the scalp, face, and chest. It is believed to be caused by a combination of genetic, environmental, and hormonal factors.
Treatment options for seborrheic dermatitis include medicated shampoos containing antifungal agents, topical corticosteroids, and anti-inflammatory medications.