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  1. USMLE Step 1 Forum
    A 35 Yr old man develops, hemiparesis, hemiparesis, and cognitive deterioration. MRI of the brain shows wide spead areas of abnormal T2 signal in the white mater. An electroencephalogram shows diffuse slowing over both cerebral hemispheres. Examination of tissue obtained on biopsy shows...
  2. USMLE Step 1 Forum
    hi mates here is another topic(lacunar stroke vs charcot bouchard aneurysm rupture) of my confusion...firstly i thought these both are similar involving lenticulostriate arteries.............. after many working days i gotta know a clear idea of them..now i'm able to differentiate them by case...
  3. USMLE Step 1 Forum
    A 74-year-old man is brought to the emergency department after he became combative and was screaming that "the little people" were after him. The staff is unable to obtain a history or physical examination because of his agitation, although the triage nurse is able to obtain his vital signs...
  4. USMLE Step 1 Forum
    A 36-year-old woman is involved in a motor vehicle accident. She is not wearing a safety belt and is ejected from the vehicle. When paramedics arrive, her vital signs are stable with pulse 80/min, respirations 17/min, and blood pressure 125/80 mm Hg. On examination in the emergency department...
  5. USMLE Step 1 Forum
    A study is conducted to identify causes of neuronal loss in patients 18 to 90 years old who died in the hospital from a natural manner of death and who had autopsies performed. Histologic sections are taken from multiple areas of the brain in each patient. The sections are analyzed for the...
  6. USMLE Step 1 Forum
    A 25 year old medical student is buried by an avalanche of snow while skiing. Upon rescue, it is necessary to revive him from cardiopulmonary arrest. Although resuscitated, he remains in a coma for several hours before regaining consciousness. It is known that the patient has suffered global...
  7. USMLE Step 1 Forum
    The following picture represents the distorted image a person with a neurological problem can see. Which of the following is true about the nerve responsible for the patient's symptoms: A) It exists the brainstem from the interpeduncular fossa of the midbrain; B) It is the only cranial nerve...
  8. USMLE Step 1 Forum
    A 20-year-old, mentally retarded woman saw the physician because she had flank pain for 1 week. Physical examination showed right costovertebral angle tenderness. Patches of leathery-appearing (shagreen patches) and hypopigmented (ash-leaf patches) skin were scattered over her body. There was a...
  9. USMLE Step 1 Forum
    A 72-year-old woman trips on a toy truck left at the top of a flight of stairs by a grandchild and falls down the stairs. She does not lose consciousness. About 36 hours later, she develops a headache and confusion and is taken to the emergency department. On physical examination, she is...
  10. USMLE Step 1 Forum
    38 year old woman has seizures,increased Intracranial pressure and weakness in legs. CNS tumor is suspected and after imaging studies biopsy is done. The biopsy shows whorled pattern of cells seen here: click image to enlarge which of the following will most likely be positive on...
  11. USMLE Step 1 Forum
    Hi there, Was reading something about bladder disorders and came across two pathologies in which the location of SC damage determines the type of bladder dysfx. by definition, spastic bladder results from damage to SC above the sacral segment. the balddder gets its parasympathetic input from...
  12. USMLE Step 1 Forum
    Woman gives history that after giving birth of the child had excessive bleeding following birth of her baby now presents with low levels of all hormones ie FSH/LH/GH/TSH. what type of changes we see in her brain? a) fibrinoid necrosis b) liquifactive necrosis c) coagulative necrosis d) caseous...
  13. USMLE Step 1 Forum
    Hi all Could somebody pls explain why we get the babinski response in UMN and why not in LMN
  14. USMLE Step 1 Forum
    A 32-year-old woman is brought to the emergency department by ambulance, following a minor motor vehicle accident. The vehicle she was driving left the road and hit a roadside light pole. She sustained minor cuts and scrapes, but reports that she lost control of the vehicle when she suddenly...
  15. USMLE Step 1 Forum
    A 41-year-old man comes to the clinic because of a 2-day history of a progressively worsening headache. He was diagnosed with a sinus infection and given a prescription for amoxicillin 1 week ago. However, the patient did not fill his prescription and has not started treatment. Physical...
  16. USMLE Step 1 Bits & Pieces
    Sequence of formation of multiple sclerosis plagues: 1: Axonal denaudation . 2: oligodendrocytes depletion. 3: lipid layden macrophages. 4: fibrillary astrocytosis( reactive gliosis). 5: lymphocytes and monocytes infilteration. Please feel free to add or correct. Regards .
  17. USMLE Step 1 Forum
    I'm a little confused on the difference between Kaplan videos and DIT concerning neurotransmitters. Glutamate is the precursor to GABA (requires vit B6) GABA as we know is the main inhibitor NT of the brain Glycine is the main inhibitor NT of the spinal cord I guess I'm confused about...
  18. USMLE Step 1 Forum
    A lesion involving posterior limb of internal capsule on right results in which of the following: which artery is involved? a. transcortical apraxia b. retrograde amnesia c. left homonymous hemianopia with macular sparing d. altered sensation fron left side of face e. drooping of right corner...
  19. USMLE Step 1 Forum
    Your patient presents with difficulty in naming objects, finds it distressing. He has difficulty repeating the sentence you told him. On examination: he is unable to carry out verbal commands, what aphasia is this? a. Broca's aphasia b. Wernicke's aphasia c. Gerstmann syndrome d. Conduction...
  20. USMLE Step 1 Forum
    Dandy-Walker malformation Arnold-Chiari malformation please help . i have learned them many times now and i keep on forgetting. any1 knows what are the likely q from these 2 topics ? any mnemonics and way to learn them.
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