What's the difference between keratosis pilaris and hyperkeratosis? Hyperkeratosis refers to thickened, tough skin formations characteristic of a wide range of skin conditions. Types include warts ...

Sparseness of the scalp hair is sometimes present. Palmoplantar hyperkeratosis is coarse and lamellated (Griffiths, 1975). Patients must be treated on a case by case basis.

The patient may experience debilitating hyperkeratosis ... Patients with pityriasis rubra pilaris can be classified into five types, according to Griffith's Classification (Griffiths, 1975 ...