USMLE step 1 EXAM A+ GRADE ASSURED COMPLETE SOLUTIONS AND VERIFIED ANSWERS LATEST UPDATE!!!!

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Exam Solution
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USMLE Step 1 Key Associations 2026 A+ GRADE ASSUR
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ED COMPLETE SOLUTIONS AND VERIFIED ANSWERS (6
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0D17)




QUESTION 1 zm




Actinic (solar) keratosis
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ANSWER

Precursor to squamous cell carcinoma
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QUESTION 2 zm




Acute gastric ulcer associated with CNS injury
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ANSWER

Cushing's ulcer (1' ICP stimulates vagal gastric secretion)
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QUESTION 3 zm




Acute gastric ulcer associated with severe burns
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ANSWER

Curling's ulcer (greatly reduced plasma volume results in sloughing of gastric mucosa)
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QUESTION 4 zm




Alternating areas of transmural inflammation and normal colon
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ANSWER

Skip lesions (Crohn's disease)
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,QUESTION 5 zm




Aneurysm, dissecting zm




ANSWER

Hypertension



QUESTION 6 zm




Aortic aneurysm, abdominal and descending aorta
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ANSWER

Atherosclerosis



QUESTION 7 zm




Aortic aneurysm, ascending
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ANSWER

3" syphilis, Marfan's syndrome
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QUESTION 8 zm




Atrophy of the mammillary bodies
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ANSWER

Wernicke's encephalopathy (thiamine deficiency causing ataxia, ophthalmoplegia, and confusion)
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QUESTION 9 zm




Autosplenectomy (fibrosis and shrinkage) zm zm zm




ANSWER

Sickle cell anemia (HbS)
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QUESTION 10 zm




Bacteria associated with stomach cancer
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ANSWER

H. pylori
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, QUESTION 11 zm




Bacterial meningitis (adults and elderly)
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ANSWER

Neisseria meningitid
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QUESTION 12 zm




Bacterial meningitis (newborns and kids)
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ANSWER

Group B streptococcus (newborns), S. pneumoniae/Neisseria meningifidis (kids)
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QUESTION 13 zm




Benign melanocytic nevus
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ANSWER

Spitz nevus (most common in first two decades)
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QUESTION 14 zm




Bleeding disorder with Gplb deficiency
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ANSWER

Bernard-Soulier disease (defect in platelet adhesion to von Willebrand's factor)
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QUESTION 15 zm




Brain tumor (adults)
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ANSWER

Supratentorial: mets > astrocytoma (including glioblastoma multiforme) > meningioma > schwannom
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QUESTION 16 zm




Brain tumor (kids)
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ANSWER

Infratentorial: medulloblastoma (cerebellum) or supratentorial: craniopharyngioma, (cerebrum)
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