Smith-McCort dysplasia 2

A Smith-McCort dysplasia that is characterized by short trunk dwarfism with a barrel-shaped chest, rhizomelic limb shortening and that has_material_basis_in homozygous or compound heterozygous mutation in the RAB33B gene on chromosome 4q31.

Smith-McCort dysplasia 1

A Smith-McCort dysplasia that is characterized by short limbs and a short trunk with a barrel-shaped chest and has_material_basis_in homozygous or compound heterozygous mutation in the DYM gene (607461) on chromosome 18q21.

autosomal dominant thrombophilia due to protein S deficiency

A protein S deficiency characterized by reduced serum protein S levels and recurrent venous thrombosis that has_material_basis_in heterozygous mutation in the PROS1 gene on chromosome 3q11.1.

sickle cell disease

A blood protein disease that is characterized by chronic hemolytic anemia and intermittent vaso-occlusive events that result in tissue ischemia leading to acute and chronic pain as well as organ damage that can affect any organ system, resulting from the replacement of one of the beta-globin subunits in hemoglobin with atypical hemoglobin molecules called hemoglobin S which can distort red blood cells into a sickle or crescent shape. Sickle cell disease subtypes should include a detailed genotypic description for the hemoglobin molecules (e.g., Hb S/S, Hb S/C, Hb S/0-thalassemia).

Charcot-Marie-Tooth disease intermediate type

A Charcot-Marie-Tooth disease characterized by motor conduction velocities above and below 38 m/s.

X-linked mental retardation-hypotonic facies syndrome-1

A syndromic X-linked intellectual disability that is characterized primarily by severe mental retardation, dysmorphic facies, and a highly skewed X-inactivation pattern in carrier women and that has_material_basis_in mutation in the ATRX gene. X-linked mental retardation-hypotonic facies syndrome comprises several syndromes previously reported separately. These include Carpenter-Waziri, Holmes-Gang, and Smith-Fineman-Myers syndromes. X-linked alpha-thalassemia/mental retardation syndrome is an allelic disorder with a similar phenotype with the addition of alpha-thalassemia and Hb H inclusion bodies in erythrocytes.

Moebius syndrome

A facial nerve disease characterized by congenital, uni- or bilateral, non-progressive facial weakness and limited abduction of the eye(s).

autosomal recessive thrombophilia due to protein S deficiency

A protein S deficiency characterized by thrombosis and secondary hemorrhage usually beginning in early infancy that has_material_basis_in homozygous or compound heterozygous mutation in the PROS1 gene on chromosome 3q11.1.

refractive amblyopia

An amblyopia that is characterized by refractive error in one or both eyes that is not corrected early in childhood resulting in poor development of the visual function in the affected eye(s).

sickle cell anemia

A sickle cell disease that is characterized by the replacement of both of the beta-globin subunits in hemoglobin with hemoglobin S, resulting in a low number of red blood cells, repeated infections, and periodic episodes of pain.