Quiz 07/28/2022 (1)

A 55-year-old was recently diagnosed with breast cancer. She required a right mastectomy, lymph node resection, and local radiation. She presents to your clinic with right arm pain and weakness. On exam, she has weakness only to forearm pronation, and flexion at the wrist and biceps. She also has numbness of the lateral hand and the first 3 digits.

Which cord or nerve was likely injured from the surgery or radiation?

A lesion to which of the following neuroanatomical structures causes dysphagia, decreased gag reflex, and hoarseness?

A patient presents to the emergency room with sudden onset weakness and dysphagia. On exam, the patient’s tongue deviates to the left, and there is right hemiparesis and right-sided loss of position and vibratory sensation. Pain and temperature sensation is intact. Which of the following arteries supplies blood to the damaged area?

Cytotoxic edema would be best appreciated on which of the following MRI sequences?

Which of the following can not passively diffuse across the blood-brain barrier?

Which of the findings are most likely to be found on examination in a patient with the lesion appreciated in the image below?

Lesion to which area of the brain causes impairment in naming, fluency, and repetition with intact comprehension?

What is the anatomical structure labeled “C” below?

Vasogenic edema would be best appreciated on which of the following MRI sequences?

Cerebral amyloid angiopathy would be best appreciated on which of the following MRI sequences?

A 24-year-old patient had a severe unhelmeted motorcycle accident and despite best efforts by medication providers, he passed away two days later. An autopsy was performed. Identify the structure marked by the white arrow.

Uncal herniation compressing on the structure marked below (black arrow) would lead to which of the following symptoms?

Which of the following blood vessels that supply the thalamus is the only one to branch off of the posterior communicating artery (PCOM) instead of the posterior cerebral artery (PCA)?

A young infant is found after birth to have an abnormality of the left arm. The arm is held down by the infant’s side, adducted and medially rotated, and the forearm is extended and pronated. What is the anatomic location of the injury causing the deficits?

What is the anatomical structure marked by the blue arrow?

A 32-year-old obese and pregnant female in her third trimester presents to the clinic with pain and tingling of the lateral thigh with occasional aching in the groin. It is worsened by moving to a standing or sitting position and by wearing tight underwear. She has numbness on the right anterolateral thigh up to the level of the hip. The strength exam is normal. Which nerve is likely affected?

A 45-year-old man presents to the clinic with a disc of the following MRI. Which symptom is the patient likely experiencing?

Which of the following can be appreciated on histopathologic analysis of ischemic tissue five hours after an ischemic injury to the cortex?

Which of the following is the chemoreceptor trigger zone for vomiting?

An 80-year-old woman with uncontrolled HTN presents to the ED with symptoms upon awakening of left hemi-sensory loss, last seen well 8 hours prior. MRI is done and shows a lateral thalamic lacunar stroke. The small branch affected in this lacune is most often a branch of which major artery?

Which of the following structures has an intact blood-brain barrier?

A pure sensory stroke is most likely to damage which structure?