Harrison's Manual of Medicine
- bacillary peliosis
- Bacillus cereus infections
- bacitracin, antibacterial resistance to
- bacterial vaginosis
- bacteriuria, asymptomatic
- Bacteroides fragilis infections
- BAL (bronchoalveolar lavage)
- Balamuthia
- Balkan endemic nephropathy (BEN)
- balloon dilatation, for esophageal disorders
- balloon tamponade, for esophagogastric varices
- barbiturate coma
- bark scorpion sting
- Barmah Forest virus infection
- barrier contraception
- basic life support (BLS)
- basophilia
- basophilic stippling
- Baylisascaris
- B cell(s)
- B cell deficiency
- B cell receptors, defective rearrangements of
- BCR-ABL
- Becker dystrophy
- beer potomania
- bee sting
- Behçet's syndrome
- belimumab, for SLE
- Belsey procedure
- BEN (Balkan endemic nephropathy)
- benign paroxysmal positional vertigo (BPPV)
- benralizumab, for asthma
- benserazide/levodopa, for Parkinson's disease
- bentiromide test
- benzene derivative poisoning
- benznidazole, for Chagas disease
- benzonatate, for cough
- benzoyl peroxide, for acne
- berylliosis
- beta-carotene, for erythropoietic protoporphyria
- bethanechol, for bladder hyporeflexia
- betrixaban
- BFM regimen, for Burkitt's lymphoma/leukemia
- bicarbonate, renal retention of
- bictegravir, for HIV
- bicuspid aortic valve, congenital
- biguanides, for diabetes mellitus
- bilastine, for allergic rhinitis
- bile acid sequestrants
- bile ducts, diagnostic evaluation of
- bile salt deficiency
- biliary colic
- binge eating disorder
- bioelectrical impedance
- bioterrorism
- bipolar disorder
- bisacodyl, for constipation
- bismuth subsalicylate, for H. pylori eradication
- Blakemore-Sengstaken tube, for esophagogastric varices
- bleomycin, for testicular cancer
- blood urea nitrogen (BUN)
- blood vessel wall defects
- BLS (basic life support)
- blue toe syndrome
- body louse
- body temperature
- body weight
- Boerhaave's syndrome
- bone metastasis, osteoblastic, in men
- borderline personality disorder
- Bordetella pertussis infections: see pertussis
- Bornholm disease
- Borrelia miyamotoi infections
- Borrelia recurrentis infections
- bortezomib, for multiple myeloma
- bounding (hyperkinetic) pulse
- Bowen's disease
- BPPV (benign paroxysmal positional vertigo)
- brachial neuritis, acute
- brachial plexus, injury to
- bradycardia
- brain death
- brain herniation
- brain mass, in cancer patients
- brainstem encephalitis
- brainstem lesion
- break-bone fever
- breast mass, approach to
- Brenner tumor
- brexpiprazole
- brigatinib, for lung cancer
- Brill-Zinsser disease
- brivaracetam, for seizures
- bromocriptine
- bronchiectasis
- bronchitis, hemoptysis in
- bronchoalveolar lavage (BAL)
- Brugada syndrome
- Bruton's tyrosine kinase gene
- bubonic plague
- Budd-Chiari syndrome
- bulimia nervosa
- BUN (blood urea nitrogen)
- burn patient, neutrophilia in
- bursitis
- butorphanol, for pain
- byssinosis