keratosis follicularis spinulosa decalvans (MONDO_0000136, a Monarch Disease Ontology entry) is a rare genodermatosis occurring during infancy or childhood, predominantly affecting males, and characterized by diffuse follicular hyperkeratosis associated with progressive cicatricial alopecia of the scalp, eyebrows and eyelashes. Additional findings can include photophobia, corneal dystrophy, facial erythema, and/or palmoplantar keratoderma. Also known as: keratosis pilaris decalvans.