A macular rash has been spreading for 5 days after the cheerful child started amoxicillin therapy. What’s the most likely cause?

Cancer may be an under-appreciated, but common risk factor for stroke, which is most common the first month after cancer diagnosis.

Italian researchers have found yet another area where the vitamin/hormone may help out: the bedroom.

Two hours earlier the patient had vomited to dislodge food stuck in his throat. This had been effective in the past but had never produced blood. Chest and epigastric pain worsened when he lay down.

This rash began as a small red patch about 10 days earlier while the patient was at wrestling camp.

What flu vaccine should you recommend this year for children over age 2? A look at the data . . .

Synovitis predates and is associated with the development of radiographic osteoarthritis, new findings suggest. Treating synovitis in knee OA may help reduce disease progression and relieve symptoms. Details here.

The merging of primary psychiatric care with primary medical care is urgently needed. Here’s why.

Here: a gallery of 5 unusual clinical cases and images from our partner Figure 1.

If we had a vaccine that was as effective at reducing HIV infection as circumcision, it would be a recommended vaccine here in the US, argues this pediatrician.

Eruptive xanthomas; smooth-shaped, deeply placed nodules; a solitary itchy patch . . . how much do you know about these and 2 other disorders?

I recently saw a great cartoon. A patient is surrounded by doctors, all turned away from him viewing their respective computer screens. The caption: patient-centered medicine.

Does this rash look like impetigo? Herpes? Tinea? Cellulitis? Here's a close look and a link to the answer and discussion.

Subungual infection; “raccoon eyes;” bed bug bites. . . a quiz to challenge you.

The verdict is in: there’s not enough evidence to support screening of asymptomatic individuals for low vitamin D. Here: a look behind the curtain.

Radiating chest pain and sweating in a middle-aged man who describes a history of anxiety: looks like classic MI, but is it? Watch the video for clues.

These 2 patients presented with a swollen hand and rapidly proximally progressive edema secondary to a bite. What creature did the biting?

A new study suggests that DNA fragmentation and progressive motility may be more accurate and consistent predictors of sperm quality than traditionally measured traits.

Results of a new large study may offer some clarity in an area replete with conflicting findings from small studies in older men or registry studies in special populations.