B

• B cell prolymphocytic leukemia

• B-cell lymphoma

• B4GALT1-CDG (CDG-IId)

• Babesiosis

• Baby rattle pelvic dysplasia

• Bacterial meningitis

• Baetz-Greenwalt syndrome

• Bagatelle Cassidy syndrome

• Bain type of X-linked syndromic intellectual disability

• Baker Vinters syndrome

• Balantidiasis

• Balkan endemic nephropathy

• Baller-Gerold syndrome

• Bamforth syndrome

• Bangstad syndrome

• Banki syndrome

• Bannayan-Riley-Ruvalcaba syndrome

• Banti's syndrome

• Bantu siderosis

• BAP1 tumor predisposition syndrome

• Baraitser Brett Piesowicz syndrome

• Baraitser Rodeck Garner syndrome

• Baraitser-Winter syndrome

• Barakat syndrome

• Barber Say syndrome

• Bardet-Biedl syndrome

• Bardet-Biedl syndrome 1

• Bardet-Biedl syndrome 10

• Bardet-Biedl syndrome 11

• Bardet-Biedl syndrome 12

• Bardet-Biedl syndrome 2

• Bardet-Biedl syndrome 3

• Bardet-Biedl syndrome 4

• Bardet-Biedl syndrome 5

• Bardet-Biedl syndrome 6

• Bardet-Biedl syndrome 7

• Bardet-Biedl syndrome 8

• Bardet-Biedl syndrome 9

• Bare lymphocyte syndrome

• Bare lymphocyte syndrome 2

• Baritosis

• Barnicoat Baraitser syndrome

• Baroreflex failure

• Barraquer-Simons syndrome

• Barth syndrome

• Bartter syndrome

• Bartter syndrome antenatal type 1

• Bartter syndrome antenatal type 2

• Bartter syndrome type 3

• Bartter syndrome type 4

• Basal cell carcinoma, infundibulocystic

• Basal cell carcinoma, multiple

• Basal cell nevus anodontia abnormal bone mineralization

• Basaloid follicular hamartoma

• Basaran Yilmaz syndrome

• Basedow's coma

• Bassoe syndrome

• Battaglia-Neri syndrome

• Baylisascaris infection

• Bazex-Dupre-Christol syndrome

• Bd syndrome

• Beare-Stevenson cutis gyrata syndrome

• Becker muscular dystrophy

• Becker nevus syndrome

• Becker's nevus

• Beckwith-Wiedemann syndrome

• Bednar tumor

• Beemer Ertbruggen syndrome

• Behçet disease

• Behr syndrome

• Bejel

• Bell's palsy

• Ben Ari Shuper Mimouni syndrome

• Benallegue Lacete syndrome

• Benign angiitis of the central nervous system

• Benign autosomal dominant myopathy

• Benign eccrine spiradenoma

• Benign essential blepharospasm

• Benign familial infantile epilepsy

• Benign familial neonatal epilepsy

• Benign familial neonatal-infantile seizures

• Benign hereditary chorea

• Benign metastasizing leiomyoma

• Benign multicystic peritoneal mesothelioma

• Benign paroxysmal positional vertigo

• Benign recurrent intrahepatic cholestasis

• Benign recurrent intrahepatic cholestasis 1

• Benign recurrent intrahepatic cholestasis 2

• Benign rolandic epilepsy (BRE)

• Bent bone dysplasia syndrome

• BENTA disease

• Beriberi

• Berk-Tabatznik syndrome

• Berry aneurysm, cirrhosis, pulmonary emphysema, and cerebral calcification

• Beryllium disease

• Best vitelliform macular dystrophy

• Best1 retinopathy

• Beta ketothiolase deficiency

• Beta-galactosidase-1 deficiency

• Beta-Propeller Protein-Associated Neurodegeneration

• Beta-sarcoglycanopathy

• Beta-thalassemia

• Bethlem myopathy

• Beukes familial hip dysplasia

• Bidirectional tachycardia

• Biemond syndrome

• Biemond syndrome 2

• Biemond syndrome type 1

• Bier spots

• Bietti crystalline corneoretinal dystrophy

• Bifid nose

• Bifid nose with or without anorectal and renal anomalies

• Bilateral frontal polymicrogyria

• Bilateral frontoparietal polymicrogyria

• Bilateral generalized polymicrogyria

• Bilateral parasagittal parieto-occipital polymicrogyria

• Bilateral perisylvian polymicrogyria

• Bilateral renal agenesis dominant type

• Bile acid synthesis defect, congenital, 4

• Bile duct cancer

• Bile duct cysts

• Biliary atresia

• Biliary atresia intrahepatic non syndromic form

• Biliary atresia intrahepatic syndromic form

• Biliary hypoplasia

• Biliary tract cancer

• Bilirubin induced brain injury in the newborn

• Billet Bear syndrome

• Binswanger's disease

• Biotin-thiamine-responsive basal ganglia disease

• Biotinidase deficiency

• Birdshot chorioretinopathy

• Birk-Barel syndrome

• Birt-Hogg-Dube syndrome

• Bixler Christian Gorlin syndrome

• Bizzare parosteal osteochondromatous proliferation

• Bjornstad syndrome

• BK-virus nephropathy

• Bladder cancer, childhood

• Blastic plasmacytoid dendritic cell

• Blastomycosis

• Blau syndrome

• Bleeding disorder due to P2RY12 defect

• Blepharo naso facial syndrome Van maldergem type

• Blepharonasofacial malformation syndrome

• Blepharophimosis

• Blepharophimosis intellectual disability syndromes

• Blepharophimosis with ptosis, syndactyly, and short stature

• Blepharophimosis, ptosis, and epicanthus inversus syndrome type 1

• Blepharophimosis, ptosis, and epicanthus inversus syndrome type 2

• Blepharoptosis myopia ectopia lentis

• Bloom syndrome

• Blount disease

• Blue cone monochromatism

• Blue diaper syndrome

• Blue rubber bleb nevus syndrome

• Bobble-head doll syndrome

• BOD syndrome

• Boerhaave syndrome

• Bohring-Opitz syndrome

• Bone dysplasia Azouz type

• Bone dysplasia corpus callosum agenesis

• Bone dysplasia lethal Holmgren type

• Bone dysplasia Moore type

• Book syndrome

• Boomerang dysplasia

• BOR-Duane hydrocephalus contiguous gene syndrome

• Borjeson-Forssman-Lehmann syndrome

• Bork Stender Schmidt syndrome

• Borrone Di Rocco Crovato syndrome

• Bothriocephalosis

• Botulism

• Boudhina Yedes Khiari syndrome

• Bourneville syndrome

• Bow hunter's stroke

• Bowen's disease

• Bowen-Conradi syndrome

• Bowenoid papulosis

• Bowing of legs, anterior with dwarfism

• Bowing of long bones congenital

• Boylan Dew Greco syndrome

• Brachial amelia, forebrain defects and facial clefts

• Brachioskeletogenital syndrome

• Brachycephalofrontonasal dysplasia

• Brachydactylous dwarfism Mseleni type

• Brachydactyly absence of distal phalanges

• Brachydactyly anonychia

• Brachydactyly elbow wrist dysplasia

• Brachydactyly long thumb type

• Brachydactyly Mononen type

• Brachydactyly preaxial with hallux varus and thumb abduction

• Brachydactyly small stature face anomalies

• Brachydactyly tibial hypoplasia

• Brachydactyly type A1

• Brachydactyly type A2

• Brachydactyly type A3

• Brachydactyly type A4

• Brachydactyly type A5

• Brachydactyly type A6

• Brachydactyly type A7

• Brachydactyly type B

• Brachydactyly type C

• Brachydactyly type E

• Brachydactyly types B and E combined

• Brachydactyly with hypertension

• Brachydactyly-mesomelia-intellectual disability-heart defects syndrome

• Brachymesomelia renal syndrome

• Brachymesophalangy type 2

• Brachymetapody anodontia hypotrichosis albinoidism

• Brachyolmia

• Brachyolmia type 3

• Brachyphalangy, polydactyly, and tibial aplasia/hypoplasia

• Braddock Jones Superneau syndrome

• Bradyopsia

• Brain stem cancer

• Brain tumor, adult

• Brain tumor, childhood

• Brain-lung-thyroid syndrome

• Branchial arch defects

• Branchial arch syndrome X-linked

• Branchiooculofacial syndrome

• Branchiootic syndrome

• Branchiootorenal syndrome

• BRCA1 hereditary breast and ovarian cancer syndrome

• BRCA2 hereditary breast and ovarian cancer syndrome

• Breast cancer, childhood

• Breast cancer, male

• Brenner tumor of ovary

• Brenner tumor of the vagina

• Brittle bone syndrome lethal type

• Brittle cornea syndrome

• Brittle diabetes

• Brody myopathy

• Broken heart syndrome

• Bronchial adenomas/carcinoids childhood

• Bronchiectasis oligospermia

• Bronchiolitis obliterans

• Bronchiolitis obliterans organizing pneumonia

• Bronchogenic cyst

• Bronchopulmonary dysplasia

• Brooke-Spiegler syndrome

• Brooks Wisniewski Brown syndrome

• Brown syndrome

• Brown-Sequard syndrome

• Brucellosis

• Bruck syndrome 1

• Bruck syndrome 2

• Brugada syndrome

• Brugada syndrome 3

• Brugada syndrome 4

• Brunsting-Perry syndrome

• Bruyn Scheltens syndrome

• Bubonic plague

• Budd-Chiari syndrome

• Buerger disease

• Bullous dystrophy hereditary macular type

• Bullous pemphigoid

• Burkitt lymphoma

• Burn Goodship syndrome

• Burnett Schwartz Berberian syndrome

• Burning mouth syndrome type 3

• Buruli ulcer

• Buschke Lowenstein tumor

• Buschke Ollendorff syndrome

• Bustos Simosa Pinto Cisternas syndrome

• Byssinosis