(Updated) USMLE Step 1 complete Study Guide | Latest 2023/2024

(Updated) USMLE Step 1 complete Study Guide | Latest 2023/2024 often precedes squamous cell carcinoma -- actinic keratosis primary adrenocortical deficiency -- Addison's disease polyostotic fibrous dysplasia, precocious puberty, cafe-au-lait spots, short stature, young girls - diagnosis? -- Albright's syndrome hereditary nephritis with nerve deafness -- Alport's syndrome anti-basement membrane antibodies - diagnosis? -- Goodpasture's syndrome anticentromere antibodies - diagnosis? -- scleroderma (CREST) anti-double-stranded DNA antibodies (ANA antibodies) - diagnosis? - what hypersensitivity type? -- SLE - type III hypersensitivity anti-epithelial cell antibodies - diagnosis? -- pemphigus vulgaris antigliadin antibodies - diagnosis? -- celiac disease antihistone antibodies - diagnosis? -- drug-induced SLE anti-IgG antibodies - diagnosis? -- rheumatoid arthritis antimitochondrial antibodies - diagnosis? -- primary biliary cirrhosis antineutrophil antibodies - diagnosis? -- vasculitis antiplatelet antibodies - diagnosis? -- idiopathic thrombocytopenic purpura arachnodactyly - diagnosis? -- Marfan's syndrome Argyll-Robertson pupil - diagnosis? -- neurosyphilis Arnold-Chiari malformation -- cerebellar tonsillar herniation Aschoff bodies - diagnosis? -- rheumatic fever atrophy of the mammillary bodies - diagnosis? -- Wernicke's encephalopathy Auer rods - diagnosis? -- acute myelogenous leukemia (especially promyelocytic type) autosplenectomy - diagnosis? -- sickle cell anemia Babinski's sign is associated with what? -- UMN lesion "bamboo spine" on x-ray -- ankylosing spondylitis basophilic stippling of RBCs - diagnosis? -- lead poisoning defective dystrophin, less severe than Duchenne's -- Becker's muscular dystrophy LMN CN VII palsy -- Bell's palsy Bence Jones proteins - possible diagnoses? - in each case, what are the proteins? -- multiple myeloma - kappa or lambda light chains Waldenstrom's macroglobulinemia - IgM IgA nephropathy - diagnosis? -- Berger's disease Bernard-Soulier disease - what is the defect? -- defect in platelet adhesion bilateral hilar adenopathy, uveitis - diagnosis? -- sarcoidosis Birbeck granules on EM - diagnosis? -- histiocytosis X (eosinophilic granuloma) bloody tap on LP - diagnosis? -- subarachnoid hemorrhage "blue bloater" -- chronic bronchitis blue-domed cysts - diagnosis? -- fibrocystic change of the breast blue sclera - diagnosis? -- osteogenesis imperfecta boot-shaped heart on x-ray - possible diagnoses? -- tetralogy of Fallot or RVH Bouchard's nodes - diagnosis? - where are they located? - why do they occur? -- osteoarthritis - on PIP secondary to osteophytes boutonniere deformity - diagnosis? -- rheumatoid arthritis branching rods in oral infection - diagnosis? -- Actinomyces israelii "brown tumor" of bone - possible diagnoses?