Ulnar hypoplasia-split foot syndrome

Neonatal

Ulnar-mammary syndrome

Autosomal dominant

Adolescent, Antenatal, Infancy, Neonatal

Ulnar/fibula ray defect-brachydactyly syndrome

Autosomal dominant

Infancy, Neonatal

Umbilical cord ulceration-intestinal atresia syndrome

Unknown

Antenatal

Unclassified acute myeloid leukemia

Unclassified autoinflammatory syndrome

Antenatal, Infancy, Neonatal

Unclassified myelodysplastic syndrome

Not applicable

All ages

Unclassified vasculitis

Not applicable

Uncombable hair syndrome

Autosomal recessive

Childhood

Undifferentiated carcinoma of esophagus

Not applicable

Adult, Elderly

Undifferentiated carcinoma of liver and intrahepatic biliary tract

Not applicable

Adult

Undifferentiated carcinoma of stomach

Not applicable

Adult

Undifferentiated carcinoma with osteoclast-like giant cells of pancreas

Not applicable

Adult

Undifferentiated pleomorphic sarcoma

Not applicable

Adolescent, Adult, Childhood, Elderly

Unexplained long-lasting fever/inflammatory syndrome

All ages

Unicentric Castleman disease

All ages

Unifocal Langerhans cell histiocytosis

Not applicable

Unilateral focal polymicrogyria

Antenatal, Infancy, Neonatal

Unilateral hemispheric polymicrogyria

Antenatal, Infancy, Neonatal

Unilateral multicystic dysplastic kidney

Autosomal dominant

All ages

Unilateral ocular duplication

Autosomal dominant

Neonatal

Unilateral polymicrogyria

Infancy, Neonatal

Univentricular heart

Not applicable

Infancy, Neonatal

Unspecified juvenile idiopathic arthritis

Childhood, Infancy