Mandibuloacral dysplasiaMaturity-onset diabetes of the young, type 2; MODY2Meckel syndrome 2Medullary cystic kidney disease 2Medullary thyroid carcinoma Megalencephalic leukoencephalopathy with subcortical cysts Megaloblastic anemia-1, Norwegian typeMelanoma, cutaneous malignant, 2Melanoma, cutaneous malignant, susceptibility to, 10Meleda diseaseMembranous glomerulonephritis, antenatalMHC class II deficiency, complementation group BMicrophthalmia, isolated 6Mitochondrial complex IV deficiencyMitochondrial DNA depletion syndrome 3 (hepatocerebral type)Miyoshi muscular dystrophy 1Miyoshi muscular dystrophy 3Mucopolysaccharidisis type IIIA (Sanfilippo A)Mucopolysaccharidosis Ih (Hurler Syndrome)Mucopolysaccharidosis IVA (Morquio A syndrome)Mucopolysaccharidosis type VI (Maroteaux-Lamy)Multiple endocrine neoplasia IIAMultiple mitochondrial dysfunctions syndrome 1Muscular dystrophy, congenital merosin-deficientMuscular dystrophy, limb-girdle, type 2AMuscular dystrophy, limb-girdle, type 2BMuscular dystrophy, limb-girdle, type 2CMuscular dystrophy, limb-girdle, type 2EMuscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A, 1Muscular dystrophy-dystroglycanopathy (congenital with mental retardation), type B, 2Muscular dystrophy-dystroglycanopathy (congenital with or without mental retardation), type B, 5 Myasthenic syndrome, congenital, associated with acetylcholine receptor deficiencyMyoglobinuria, acute recurrent, autosomal recessiveMyopathy, distal, with anterior tibial onsetMyopathy, vacuolar, with CASQ1 aggregatesMyotonic dystrophy 2