- Bowen disease
- Bowman-Birk inhibitor concentrate
- BPA-F
- BPD
- BPH
- BPU
- brachial plexopathy
- brachial plexus
- brachytherapy
- BRAF (V600E) kinase inhibitor RO5185426
- BRAF gene
- BRAF inhibitor GSK2118436
- BRAF(V600E) kinase inhibitor RO5185426
- brain metastasis
- brain stem
- brain stem glioma
- brain stem tumor
- brain tumor
- Brakiva
- Brassica vegetable
- BRCA1
- BRCA2
- BRCAPro
- breakthrough pain
- breast
- breast cancer
- breast carcinoma in situ
- breast density
- breast duct
- breast duct endoscopy
- Breast Imaging Reporting and Data System
- breast implant
- breast lobe
- breast lobule
- breast reconstruction
- breast self-exam
- breast-conserving surgery
- breast-sparing surgery
- breastbone
- brentuximab vedotin
- brequinar
- Brief Pain Inventory
- brivanib
- brivanib alaninate
- brivudine
- BRM therapy
- broad-spectrum human papillomavirus vaccine V505
- broccoli sprout extract
- bromelain
- bromocriptine mesylate