Monosomy 18p syndrome
ORPHA:1598Monosomy 18q syndrome
ORPHA:1600Monosomy 9p syndrome
ORPHA:261112Multiple endocrine neoplasia type 2A
ORPHA:247698Multiple synostoses syndrome
ORPHA:3237Muscle-eye-brain disease
ORPHA:588Myelodysplastic syndrome associated with isolated del(5q) chromosome abnormality
ORPHA:86841N syndrome
ORPHA:2608Naegeli-Franceschetti-Jadassohn syndrome
ORPHA:69087NAME syndrome
ORPHA:623NARP syndrome
ORPHA:644Nevo syndrome
ORPHA:2691Nodulosis-arthropathy-osteolysis syndrome
ORPHA:85196Noonan syndrome-like disorder with juvenile myelomonocytic leukemia
ORPHA:363972Null syndrome
ORPHA:280234Oculocerebrorenal syndrome of Lowe
ORPHA:534Oculodentodigital dysplasia
ORPHA:2710Oculofaciocardiodental syndrome
ORPHA:2712Oculogastrointestinal-neurodevelopmental syndrome
ORPHA:611201Oculotrichoanal syndrome
ORPHA:2717Oley syndrome
ORPHA:79458Onycho-tricho-dysplasia-neutropenia syndrome
ORPHA:2739Ophthalmomandibulomelic dysplasia
ORPHA:2741Opsoclonus-myoclonus syndrome
ORPHA:1183Orofaciodigital syndrome type 2
ORPHA:2751Otofaciocervical syndrome
ORPHA:2792PAGOD syndrome
ORPHA:991Pai syndrome
ORPHA:1993Painful legs and moving toes syndrome
ORPHA:617440PAPA syndrome
ORPHA:69126PAPASH syndrome
ORPHA:641380PARC syndrome
ORPHA:2825PASH syndrome
ORPHA:289478PASS syndrome
ORPHA:641385Pearson syndrome
ORPHA:699Peeling skin-leukonychia-acral punctate keratoses-cheilitis-knuckle pads syndrome
ORPHA:444138PEHO syndrome
ORPHA:2836Pendred syndrome
ORPHA:705PENS syndrome
ORPHA:313936Perlman syndrome
ORPHA:2849Perry syndrome
ORPHA:178509PFAPA syndrome
ORPHA:42642PHACE syndrome
ORPHA:42775PHAVER syndrome
ORPHA:2876PIBIDS syndrome
ORPHA:670POEMS syndrome
ORPHA:2905Poland syndrome
ORPHA:2911Polyhydramnios-megalencephaly-symptomatic epilepsy syndrome
ORPHA:500533