A 50-year-old woman is evaluated for a rash on the back of her elbows and knees. A similar rash has occurred in the past, with her first episode as a young adult.A 50-year-old woman is evaluated for a rash on the back of her elbows and knees. A
A 22-year-old man is evaluated for a skin eruption on his leg. The patient lives in Virginia and is active outdoors. One week ago, he found a black tick on his lower leg, which his roommate removed with a tweezers. Yesterday he developed diffuse
A 27-year-old man is evaluated for leg pain. The patient is moderately obese (BMI=33) and had been sedentary until recently, when he joined a health club. However, after only a few minutes on the treadmill, he develops progressive pain in both his
A 62-year-old man is evaluated for an asymptomiatic nodule on his should that has been present for more than 1 year. Skin findings are shown. What is the most likely diagnosis?.
A 49-year-old woman is evaluated for a 6- month history of exertional dyspnea and nonproductive cough that had an insidious onset. She has not noticed any particular triggers for her cough. She has no history of asthma, airway disease, reflux, or
A 37-year-old man is evaluated for a 4-month history of progressively worsening red, scaly lesions involving the scalp, trunk, and extremities. During the past month, he also has had pain in the hands and feet and has lost 4.5 kg (10.0 lb). Aspirin
A 35-year-old man is evaluated for a 2-year history of intermittent chest pain that is retrosternal, lasts for seconds to minutes, is unrelated to exertion, and does not radiate. It is occasionally associated with swallowing. Upper endoscopy is
A recent HIV test was negative. He has used smokeless tobacco for 14 years.
Pseudothrombocytopenia is a laboratory artifact in which platelets drawn into an ethylenediaminetetraacetic acid (EDTA)-anticoagulated test tube clump and fail to be counted accurately by the automated counter, resulting in a
A 48-year-old woman is evaluated for a rash on her legs, arthralgia and myalgia, low-grade fever, and fatigue of 4 weeks' duration.