Neurohistology Meninges Spinal Cord Brainstem Cerebellum Cerebrum Sectional Anatomy Neuroimaging Practice Questions

2005 Exam I Case 01

 

Chief Complaint:

A 56-year-old, right-handed female presents to the physician’s office today complaining of headaches, sharp burning pains on the right side of her face and strange sensations from the right side of her body

History of Chief Complaint:

Patient states that she has been having headaches on and off for about 10 months. She claims that recently the headaches have been unilateral (left side) and centered on the upper posterior cervical region.  Approximately 6 days ago, the patient noticed an occasional change in her voice and had difficulty swallowing dry food. Within the past 24 hours, these symptoms increased in frequency and duration until yesterday afternoon when the onset was also accompanied by a painful, burning pain on her right face.  These symptoms have not subsided. She complains of stumbling to avoid objects, and feels “off-balance” when walking.

Past Medical History:

She had a complete hysterectomy when she was 35-years-old.  She was diagnosed with hypertension and hyperlipidemia at the age of 43, but has been very lax on seeing her doctor for regular checkups.  She has not been on hormone replacement therapy.

Family History:

She is unmarried and has no children. Her mother is in good health; her father is deceased from a myocardial infarction at the age of 73.

Social History:

She is a restaurant reviewer and loves to travel.  She denies the use of illicit drugs, but admits to social alcohol use and a 20-pack-year history of smoking. She wears her seatbelt when she travels and all of her immunizations are up-to-date.  

General Physical Examination:

Vital Signs:   BP: 158/99       HR: 105        Temp: 98.6◦F       Resp: 16      Height:  5’4” Weight: 130lbs.  Patient is a well-groomed, pleasant female who appears her stated age.  Head is normocephalic and without evidence of trauma.  Skin is supple and moist. Neck is without evidence of lymphadeopathy.  A grade 2/6 carotid bruit is present on the left. Heart rate was elevated with regular rhythm. Chest is clear to auscultation without crackles, rhonchi or wheezing. 

Neurological Examination:

Mental Status:  The patient is alert and oriented to person, place and time.  Her speech is meaningful and her memory and knowledge are appropriate. She can follow multistep commands. 

Cranial Nerves:  Visual acuity was 20/20 in both eyes; on left lateral gaze, there was an oscillating motion of the eyes with a slow movement toward the midline and the fast movement outward to the left.  She complained of feeling dizzy during these eye movements and of seeing double.  Extraocular movements were full.  Ptosis of the left eyelid was present. Left pupil is 3mm, right pupil is 5mm, both are reactive to light and accommodation.  Numbness to pain was present on the left side of the face, with sparing around the mouth.  The left side of the face had decreased sweating. Facial expressions were full bilaterally. The corneal and gag reflexes were sluggish.  Hearing was intact to finger rub bilaterally. Hoarseness was noted, the uvula deviated to the right and there was insufficient elevation of the palate on the left. The tongue protruded midline and was without fasciculations. 

Motor System:  Strength is intact throughout upper and lower extremities. Deep tendon reflexes are normal and symmetric.  However, finger-to-nose and heel-to-shin testing was slightly abnormal in the left extremities.

Sensory Exam:  There is a loss of pain and temperature sensation present in the upper and lower right extremities.  Loss of pain and temperature were also absent on the left side of her face. Two-point discrimination, vibration and proprioception were intact in all areas of the body including the extremities and face.

Follow-up:

At examination one month later, the headaches have abated. Sensation to the right body and the burning pain on the right face also resolved. The only complaints that remained are a mild loss of sensation to pain to the left side of the face and a slight feeling of choking when eating solid foods.

 

Questions

 

INSTRUCTIONS: Provide the BEST or MOST LIKELY answer to the following multiple choice questions.

 

Question 01:

The left-sided ptosis, miosis and anhydrosis are suggest of:

a) Wallenberg syndrome

b) Horner syndrome

c) Foville syndrome

d) Djerine syndrome

e) Bulbar palsy syndrome

ANSWER

Question 02:

The left-sided ptosis, miosis and anhydrosis suggest damage to the:

a) Glossopharyngeal nerve

b) Sympathetic nervous system

c) Nucleus ambiguus

d) Dorsal motor nucleus of the vagus

e) Solitary nucleus

ANSWER

Question 03:

The loss of pinprick sensation with perioral sparing on the left side of her face is best termed facial:

a) Hemiataxia

b) Hemiparesis

c) Analgesia

d) Sensory dissociation

e) Hemiparesthesia

ANSWER

Question 04:

The loss of pinprick sensation with perioral sparing on the left side of her face is most likely due to damage to the:

a) Ventral trigeminothalamic tract

b) Spinal trigeminal nucleus

c) Trigeminal nerve root

d) Trigeminal ganglion

e) Trigeminal nerve

ANSWER

Question 05:

In this patient, the difficulty eating solid food is best termed:

a) Dysphonia

b) Dyspnea

c) Dysphagia

d) Dysphasia

e) Dyskinesia

ANSWER

Question 06:

In this patient, the difficulty eating solid food is most likely due to a lesion of the:

a) Vestibular nucleus

b) Solitary nucleus

c) Dorsal motor nucleus of the vagus

d) Nucleus ambiguus

e) Accessory nucleus

ANSWER

Question 07:

The aberrant movement of the patient’s eyes on left lateral gaze is best termed:

a) Vertigo

b) Nystagmus

c) Ataxia

d) Gaze palsy

e) Diplopia

ANSWER

Question 08:

The dizzy sensation experienced by the patient during these aberrant movements is best termed:

a) Vertigo

b) Nystagmus

c) Ataxia

d) Gaze palsy

e) Diplopia

ANSWER

Question 09:

The abnormal movements in the left extremities are best termed:

a) paresis

b) Dyskinesia

c) Ataxia

d) Nystagmus

e) Vertigo

ANSWER

Question 10:

The abnormal movements in the left extremities are most likely due to a lesion in the:

a) Medial lemniscus

b) Spinal lemniscus

c) Inferior cerebellar peduncle

d) Olivocerebellar fibers

e) Middle cerebellar peduncle

ANSWER

Question 11:

The altered sensorium in the right extremities of this patient is most likely due to a lesion of the:

a) Medial lemniscus

b) Fasciculus gracilis

c) Dorsal spinocerebellar tract

d) Anterolateral system

e) Lateral cuneate nucleus

ANSWER

Question 12:

In this patient, the most likely place to find chromatolytic neurons would be:

a) Ventroposterior nucleus of the thalamus

b) Dorsal root ganglia on the right

c) Dorsal horn on the right

d) Inferior olivary nucleus on the right

e) Dorsal nucleus of Clarke on the right

ANSWER

Question 13:

In this patient, the most likely place to find degenerating axons would be in the:

a) Inferior cerebellar peduncle on the right

b) Trigeminal nerve root on the right

c) Medial lemniscus on the left

d) Ventral trigeminothalamic on the right

e) Anterior white commissure

ANSWER

Question 14:

The temporal profile of the onset of this patient’s neurological event is best described as:

a) Acute and stable

b) Acute with prodrome and stable

c) Subacute and stable

d) Subacute with prodrome and stable

e) Acute with prodrome and progressive

ANSWER

Question 15:

The distribution of this patient’s neurological pathology is best described as

a) Focal and on the left

b) Focal and on the right

c) Focal and on the midline

d) Multifocal

e) Diffuse/p>

ANSWER

Question 16:

The level of this lesion on the neuraxis is best described as:

a) Upper cervical s[onal cord

b) Lateral medulla

c) Medial medulla

d) Lateral pons

e) Medial pons

ANSWER

Question 17:

The origin of this patient’s neurological pathology is best described as:

a) Embolic infarction

b) Thrombotic infarction

c) Subarchnoid hemorrhage

d) Intraparenchymal hemorrhage

e) Acute demyelinating disease

ANSWER