Neurology

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For 2 weeks, a 58-year-old woman has experienced increasingfatigue with activity. She has needed to nap duringthe day, has not been able to perform her usual activities,and has missed 3 days of work. She also complains of“muscle aches”-mainly in her back. She denies headache,dyspnea, fever, hot or cold intolerance, and alteredmentation.

A 32-year-old woman is admitted to the hospital because of nausea, vomiting,and mild jaundice. For 4 days, her health has steadily deteriorated: hepatictransaminase and bilirubin levels are elevated, prothrombin time is prolongedand, most recently, obtundation and changes in mentation have developed.Serologic studies for infection with hepatitis A, B, and C viruses are negative,as are tests for Epstein-Barr virus mononucleosis.

Q:Recent research has defined mild cognitiveimpairment as a transitional state between thecognitive changes of normal aging and Alzheimerdisease (AD) and other dementing illnesses. Whatcriteria are used to differentiate mild cognitiveimpairment from more innocuous syndromes, such asbenign senescent forgetfulness? Are patients with mildcognitive impairment considered to have incipientclinical AD?

A 60-year-old man has had anterior neck discomfort for the pastseveral weeks. He also has right-sided cephalalgia and occasional jaw discomfortwhile eating but no dysphagia or odynophagia. The cephalalgia, which hasbeen present for the past week, is moderately severe and is associated withblurred vision.

A 29-year-old woman is brought to the emergency department after a caraccident. She complains of head pain and has a contusion over the posterioraspect of the right temporal bone and right occipital bone; a small amount ofblood flows from the right external auditory canal. She has only a vague recollectionof the accident. Past medical history-although difficult to ascertain-seems noncontributory.

A 58-year-old man complains ofintermittent headaches that beganabout 2 months earlier and have recentlyincreased in severity. Theheadaches occur at various times ofthe day and improve slightly whenhe sits. He denies trauma, fever, photophobia,and other neurologicsymptoms. He has 1 alcoholic drinka day and has smoked 1 pack of cigarettesa day for the past 20 years.Medical history is noncontributory.

A 24-year-old African American man presents for a routine eye examination. Theocular findings are unremarkable; however, well-circumscribed areas of whitenedskin are noted on his forehead and hands (A and B). The patient reportsthat the patchy loss of pigment has been progressing over a number of years.

A 54-year-old Hispanic housewife presents to the emergencydepartment with a 3-week history of moderatelysevere, progressive, generalized, pulsating headache.The headache, which is partially relieved by propoxyphenenapsylate, is associated with weakness, vomiting of recentonset, and intermittent bilateral blurred vision. The symptomsbegan after an incident in which the patient’s sonwas stabbed.

A 40-year-old woman reports increasingly frequent and severe headaches during the past few months. She has had boutsof severe headaches since college, and episodic migraine was diagnosed a decade ago. She uses over-the-counter products(ibuprofen, ketoprofen, or aspirin) at the onset of an attack; if these fail to relieve symptoms, she takes hydrocodone/acetaminophen. During her worst attacks, she is typically forced to halt her activities, is unable to eat or drink, and mayvomit. For unresponsive or persistent (more than 24-hour) attacks, her husband drives her to the urgent care centerfor intravenous hydration, intramuscular promethazine, and additional doses of hydrocodone/acetaminophen. Accordingto the patient, a visit to the urgent care center “completely ruins our day.”

An 84-year-old woman presents with a 3-year history of slowly progressivememory impairment accompanied by functional decline. Thepatient lives alone but has been receiving an increasing amount of support from her 2 daughters,who accompany her to the appointment. The daughters first noticed that their mother was havingtrouble driving. About a year ago, she started forgetting family recipes. She also left food cookingon the stove unattended and burned several pans. Currently, the daughters are providing mealsand transportation, assisting with housework, and doing their mother’s laundry. They have becomeincreasingly alarmed because she takes her medications only sporadically, despite the factthat they fill her pillboxes and call her regularly with reminders. Their chief concern is whether itis safe for their mother to continue to live alone.

An 84-year-old woman presents with a 3-year history of slowly progressivememory impairment accompanied by functional decline. Thepatient lives alone but has been receiving an increasing amount of support from her 2 daughters,who accompany her to the appointment. The daughters first noticed that their mother was havingtrouble driving. About a year ago, she started forgetting family recipes. She also left food cookingon the stove unattended and burned several pans. Currently, the daughters are providing mealsand transportation, assisting with housework, and doing their mother’s laundry. They have becomeincreasingly alarmed because she takes her medications only sporadically, despite the factthat they fill her pillboxes and call her regularly with reminders. Their chief concern is whether itis safe for their mother to continue to live alone.

I enjoyed Dr Henry Schneiderman’s “What’s Your Diagnosis?” case of an elderly woman with severe facial ecchymoses from a fall. Would Dr Schneiderman elaborate on several points about that case? This woman did not trip or complain of dizziness before she fell. What caused her to fall?

A 49-year-old man presents with recurring facial pain of 6 months' duration. The pain initially occurred several times per week; it now occurs as often as several times per day. The paroxysmal pain is intense and incapacitating but abates within several minutes. It occurs in the right maxillary region and lower jaw and is sharp and lancinating. Hard chewing and teeth cleaning are the usual precipitating events. Between episodes, the patient is asymptomatic, without numbness or deficit in the affected region.

Drug-Induced Formication

The false sensation of bugs crawling on or within the skin is a sensory hallucination commonly associated with psychostimulant drugs. It was first reported in chronic cocaine users in 1889. Patients with this disorder often have self-induced dermatosis caused by intense picking and scratching of the skin.

A 28-year-old man is hospitalized because of highfever with rigors and chills and rapid weight loss(5.4 kg [12 lb] in 2 weeks). During the past 48 hours,generalized throbbing headache, intermittent vomiting,blurry vision, and seizures have developed. The progressiveseizures started in the left hand and have becomegeneralized grand mal.

A 25-year-old woman presents with fever, rash, mild headache, and decreased appetite. Six days after being prescribed TMP/SMX for urinary tract symptoms, fever developed and her temperature has been gradually rising since then.