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A 16-year-old Somali girl presents witha 3-day history of bilateral arm swellingand painful vesicular eruptions; hersymptoms are worsening. She reportsthat 5 days earlier, she and her friendshad used henna and black hair dyeto “tattoo” their skin. The others havenot experienced similar signs or symptoms.This patient has used henna(which is dark red) since childhoodfor decorative purposes. However, outliningan intricate design with hairdye is new for her.

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In his second podcast, Dr Louis Kuritzky discusses the classes of incretin-based therapies now available for patients with type 2 diabetes mellitus.

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A 62-year-old obese woman with adult-onset type 1 diabetes mellitus had a 6-year history of bilateral leg edema. During the last year, the edema worsened and the skin on her legs thickened. She also had multiple, bilateral, painful, superficial ulcers that drained copiously.

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A 72-year-old man presented after several months of dyspepsia and 1 day of hematemesis. He was not taking NSAIDs.

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When this lesion was seen on the face of a 54-year-old farm worker, cutaneous melanoma was the immediate concern. Accordingly, a full-thickness excisional biopsy was performed. (Curettage and shave biopsy are contraindicated for a suspected melanoma.)

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A 67-year-old woman, who had hypertension and chronic obstructive pulmonary disease, presented to the emergency department with mild abdominal discomfort and shortness of breath.

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When using pulse oximetry to evaluate patients with Buerger disease, Raynaud phenomenon, a history of heavy smoking, or other conditions that cause vasoconstriction of the fingers, place the probe on the earlobe. In such patients, this gives a more accurate measurement of arterial hemoglobin saturation than does a digital placement.

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For 1 week, a 77-year-old man had a fever and a tender, nonpruritic rash on both palms (Figure 1) and on the anterior aspect of both knees (Figure 2). Two weeks earlier, he had hives, which ameliorated after a 10-day course of cetirizine and a tapering course of prednisone. He also had headaches almost daily for the previous 6 to 8 weeks.

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What are the most effective ways to reduce the incidence of acute exacerbations of chronic obstructive pulmonary disease?

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A 60-year-old woman with a 3-month history of cough, chest pain, and shortness of breath was brought to the emergency department. The patient denied any history of fever, chills, or rigors; she complained of mild hemoptysis for 1 week and a 9-kg (20-lb) weight loss during the last few months. The patient had smoked cigarettes for 40 years.

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This patient, a woman, presented with onychogryphosis, a severe nail change seen on the toes, especially the great toe. Thickening and hardening of the nail substance with a curved growth pattern produces this abnormal clawlike configuration.

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A 48-year-old woman with hypertension, HIV infection, anemia, and chronic kidney disease presented with generalized body weakness and diarrhea of several months’ duration.

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During a workup for dementia, a 77-year-old man was found to have a pituitary macroadenoma (21 x 17 x 25 mm) with suprasellar extension on a coronal-section MRI scan. The patient had hypertension and mild erectile dysfunction. He denied headaches, nausea, vision problems, weight changes, weakness, and polyuria. His medications included nifedipine, hydrochlorothiazide, and aspirin.

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An 83-year-old man with a history of hypertension and coronary artery disease presented with a 4-day history of mental status changes, slurred speech, and difficulty ambulating. He reported a lack of appetite and weakness of several days.

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Since it came onto the market in 1983, glyburide has been one of the most popular sulfonylureas. The American Diabetes Association (ADA) recommends the use of these agents as part of a stepwise approach to treating type 2 diabetes mellitus.

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Because of recent threats of bioterrorism, smallpox vaccination was reinstated in the United States earlier this year. Since January 2003, more than 35,000 civilian and public health care workers in 54 jurisdictions have been vaccinated.

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The patient is severely ill. Temperature is 39°C (102.2°F). Shortly after admission, she requires intubation with ventilatory support. Hypotension, acrocyanosis, and an ecchymotic rash consistent with purpura fulminans (A) rapidly develop.

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An 80-year-old woman presented with recurrent abdominal pain for 1 month, constipation, and vomiting. She had no diarrhea, rectal bleeding, or weight loss.

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A 37-year-old woman presents to the emergency departmentwith a diffuse, sharp, pounding headache,which started 2 hours earlier. She rates her discomfort as4 on a scale of 1 to 10. Neck muscle soreness is also present,but the pain does not radiate.

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Because the causes of syncope are numerous and the diagnostic tests have low yield, this disorder is often difficult to evaluate. Here we describe a practical approach to the workup that can help you rapidly identify serious underlying pathology. We also discuss treatment of the most common causes of syncope.

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A 2-month history of cough sent a 62-year-old woman for medical evaluation. The patient denied fever, chills, and rigors but reported seeing streaks of blood in her sputum during the past month. The patient had undergone a right nephrectomy 4 years earlier for renal cell carcinoma.

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The authors describe a patient whose persistent left superior vena cava was first suspected because of difficulty in placing a right internal jugular venous catheter.

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The foot of a 10-year-old boy demonstrates the unique wandering cutaneous lesions of creeping eruption, or cutaneous larva migrans. This disorder is caused by skin penetration of hookworm larvae. It is seen in the southeastern United States and tropical and subtropical regions throughout the world.

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A 63-year-old woman presents to the emergency department with a 3-day history of abdominal pain, nausea, and obstipation. The pain is located in the left lower quadrant and is sharp, constant, and nonradiating.

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During a skin cancer screening, a 45-year-old male soldier was noted to have bilateral subcutaneous nodules on the dorsa of his feet. The patient reported that the nodules had remained unchanged since they first appeared in his early 20s and were asymptomatic. He had no other lesions.

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The foot of a 10-year-old boy demonstrates the unique wandering cutaneous lesions of creeping eruption, or cutaneous larva migrans. This disorder is caused by skin penetration of hookworm larvae. It is seen in the southeastern United States and tropical and subtropical regions throughout the world.

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A 75-year-old woman with a bioprosthetic aortic valve, who had undergone surgical repair of an aortic root aneurysm 9 months earlier was hospitalized with fever, headache, and altered mental status of 1-day's duration.

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In November 2002, cases of an atypical pneumonia were reported in the Guangdong province of southern China. By the following June, outbreaks of the illness-known as severe acute respiratory syndrome (SARS)-had occurred in Germany, Ireland, the United States, Canada,Hong Kong,Singapore, and Vietnam.

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For 6 weeks, a 29-year-old previously healthy man had between 10 and 15 episodes daily of small-volume bloody diarrhea with intermittent paraumbilical pain. Anorexia and the loss of 25 lb accompanied the diarrhea. The patient had no significant medical history, took no medications, had not traveled recently, and had no contact with sick persons. He denied fever, chills, nausea, vomiting, and all other symptoms.