Chapter 22 covers Type A filaminopathies and related disorders (otopalatodigital syndrome type 1 (MIM 311300), otopalatodigital syndrome type 2 (MIM304120), Melnick-Needles osteodysplasty (MIM 309350), frontometaphyseal dysplasia (MIM 305620), Frank-Ter Harr syndrome (MIM 249420)), including major clinical findings, radiographic features, and differential diagnoses.