A 52-year-old man was referred for evaluation of three mildly pruritic patches on his right lateral upper arm, left shoulder, and right posterior thigh. The lesions had been present for 4 years, and although itching had decreased, they had failed to…
Superficial fungal infections are easily managed once the proper diagnosis is made. However, misdiagnosis is not uncommon, and many standard approaches to treatment popular just a few years ago are now out of date or in need of refinement. Through…
Clinicians should be aware of the complications of rhabdomyolysis in patients who ingest doxylamine succinate and other over-the-counter antihistamines. The easy availability of these substances increases the potential not only for intentional…
The primary care physician should be aware of recurrent corneal erosion, a condition that is quite common but is often misdiagnosed, Most cases are a result of minor corneal abrasion, after which the corneal epithelium undergoes a cycle of breakdown…
Diagnosis of porphyria cutanea tarda is usually fairly straightforward because of the characteristic clinical findings. Blisters and erosions develop acutely on sun-exposed skin, sometimes accompanied by hypertrichosis, abnormal pigmentation, and…
Acne vulgaris is a common skin disease that is most effectively treated with a combination of topical products and, in some cases, systemic antibiotics. While it is important to treat papules, pustules, nodules, and cysts with topical or systemic…
Acne vulgaris is a common skin disease that is most effectively treated with a combination of topical products and, in some cases, systemic antibiotics. While it is important to treat papules, pustules, nodules, and cysts with topical or systemic…
Primary care physicians (PCPs) usually are the first to diagnose and care for patients with chronic obstructive pulmonary disease (COPD). This article discusses key teaching points of recently published guidelines for PCPs and the common challenges…
Pneumococcal infection is common in adults, and invasive disease is associated with a high mortality rate. Pneumococcal polysaccharide vaccine can prevent invasive pneumococcal disease and is recommended for people aged >= 65 years and for younger…
A healthy 10-year-old boy presented with a widespread, nonpruritic, pustular rash of 3 days' duration. He reported having no fever, chills, or other systemic symptoms. Physical examination revealed perifollicular pustules concentrated in the swimsuit…
Pneumococcal disease, which includes pneumococcal pneumonia, meningitis, and bacteremia, is associated with substantial morbidity, mortality, and health care costs in adults. Advanced age, chronic lung or cardiovascular disease, immunosuppressive…
More than 70 medications have been implicated as a cause of drug-induced lupus. The condition most commonly manifests with arthralgias and fever. The most important laboratory feature is an elevated antinuclear antibody titer, which often corresponds…
