
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Keratosis follicularis spinulosa decalvans
Introduction
Overview
Overview
Keratosis follicularis spinulosa decalvans (also known as “Siemens-1 syndrome”) is a rare X-linked disorder described by Siemens in 1926, a disease that begins in infancy with keratosis pilaris localized on the face, then evolves to more diffuse involvement.[1]:580,762[2]:649,714
