trichoodontoonychial dysplasia https://rarediseases.info.nih.gov/diseases/5267/trichoodontoonychial-dysplasia https://www.malacards.org/card/trichoodontoonychial_dysplasia https://www.malacards.org/card/trichoodontoonychial_dysplasia_with_bone_deficiency Orphanet:3355 MEDGEN:481087 GARD:0005267 trichoodontoonychial dysplasia with bone deficiency Trichoodontoonychial dysplasia is a rare ectodermal dysplasia syndrome characterized by severe generalized hypotrichosis, parietal alopecia, secondary anodontia resulting from enamel hypoplasia, onychodystrophy, bone deficiency in the frontoparietal region and skin manifestations (incl. nevus pigmentosus, papules, ephelides, palmoplantar keratosis, supernumerary nipples, abnormal dermatoglyphics). There have been no further descriptions in the literature since 1983. SCTID:766813000 MONDO:0010153 OMIM:275450 trichoodontoonychial dysplasia with bone deficiency in frontoparietal region MESH:C564760 UMLS:C3279457 ectodermal dysplasia syndrome