USMLE Step 1 First Aid – with complete solution

USMLE Step 1 First Aid – with complete solution polyostotic fibrous dysplasia, precocious puberty, cafe-au-lait spots, short stature, young girls - diagnosis? - answerAlbright's syndrome blue-domed cysts - diagnosis? - answerfibrocystic change of the breast Wermer's syndrome - also known as? - answerMEN type I "wire loop" appearance on Light microscopy- diagnosis? - answerlupus nephropathy what is the defect in Job's syndrome? - answerneutrophil chemotaxis abnormality - due to failure of IFN-gamma production by helper T cells xanthochromia of CSF - diagnosis? - answersubarachnoid hemorrhage 4 most common brain tumors in adults - answermets > astrocytoma (including glioblastoma multiforme) > meningioma > schwannoma most common supratentorial brain tumor in kids - answercraniopharyngioma most common bug in debilitated, hospitalized pneumonia patient - answerKlebsiella pseudopalisade tumor cell arrangement - diagnosis? - answerglioblastoma multiforme pseudorosettes - diagnosis? - answerTumour(Ewing's sarcoma) nutmeg liver - diagnosis? - answerCHF "Orphan Annie" nuclei - diagnosis? - answerpapillary carcinoma of the thyroid painless jaundice - diagnosis? - answerpancreatic cancer (of head) most common liver disease - answeralcoholic liver disease "brown tumor" of bone - possible diagnoses? - what causes the brown color? - answerhyperparathyroidism or osteitis fibrosa cystica (von Recklinghausen's disease) - color is due to hemorrhage in cysts renal epithelial casts in urine - diagnosis? - answeracute toxic/viral nephrosis most common location of brain tumors in kids - answerinfratentorial cardiomegaly with apical atrophy - diagnosis? - answerChagas' disease most common mets to bone - answerbreast, lung, thyroid, testes, prostate, kidney most common mets to brain - answerlung, breast, skin (melanoma), kidney (renal cell carcinoma), GI most common mets to liver - answercolon, gastric, pancreatic, breast, lung carcinomas most common motor neuron disease - answerALS Charcot's triad of cholangitis - answerjaundice, RUQ pain, fever Charcot-Leyden crystals - diagnosis? - what are they? - answerbronchial asthma - eosinophil membranes what is the defect in Chediak-Higashi disease? - answerphagocyte deficiency S3 - possible diagnoses? - answerleft-to-right shunt (VSD, PDA, ASD), mitral regurgitation, CHF (LV failure) what are Cheyne-Stokes respirations, and in what circumstance do they occur? - answercentral apnea in CHF and increased intracranial pressure Schiller-Duval bodies - diagnosis? - answeryolk sac tumor what does chronic atrophic gastritis predispose to? - answergastric carcinoma what is Sezary syndrome? - answercutaneous T-cell lymphom