JAMA

A Woman With Rheumatoid Arthritis and Vesicular Rash

A patient receiving adalimumab for rheumatoid arthritis had ulcerated plaques on the anterior and lateral aspects of the neck, upper chest, and nape and erythroderma on the dorsum of the hands, corresponding to areas of sun exposure, as well as…

Gastric Cancer A Review

Importance  Globally, 968 350 new cases and 659 853 deaths from gastric cancer were reported in 2022. In the US, 30 300 new cases and 10 780 deaths were estimated in 2025. Observations  Gastric cancer is more common in men, and the median age at diagnosis…

PostñIntensive Care Syndrome

This JAMA Insights discusses postñintensive care unit syndrome, including how it is assessed and diagnosed as well as suggestions for treatment and prevention.

Sibling Comparisons to Account for Confounding in Observational Studies

This JAMA Guide to Statistics and Methods explains how sibling analysis can be used to account for confounding in observational studies, using the example of a study on acid suppressants during pregnancy and risk of neuropsychiatric disorders in offspring.

Stillbirth

This JAMA Insights focuses on stillbirth, including causes, risk factors, and prenatal preventive care.

The US Food and Drug Administration’s Regulation of Mifepristone

Importance  Mifepristone, used with misoprostol, is the most common abortion regimen in the US. It is also a focal point of reproductive health policy and politics, with controversy over its legal status and regulation by the US Food and Drug Administration…

Fever, Rash, and Dizziness in a 32-Year-Old

A patient in the upper Midwest had fever, rash, dizziness, multiple erythematous annular rashes on the back and lower extremities, and third-degree AV block. The patient reported frequently hiking outdoors but no recent travel, new medications, sick contacts, or ticks…

Restless Legs Syndrome – A Review

Importance  Restless legs syndrome (RLS) is a sleep-related movement disorder that affects approximately 3% of US adults to a clinically significant extent and can cause substantial sleep disturbance. Observations  Restless legs syndrome is characterized by an overwhelming urge to move the limbs,…

Management of Opioid Use Disorder

This JAMA Clinical Guidelines Synopsis summarizes the 2024 Canadian Research Initiative in Substance Matters (CRISM) guideline on management of opioid use disorder (OUD).

IgA Nephropathy in Adults – A Review

Importance  IgA nephropathy (IgAN) is a chronic kidney disease involving deposition of IgA-containing immune complexes in the glomerulus, causing glomerular inflammation and scarring. It is the most common immune-mediated glomerular disease worldwide, and affects an estimated 198 887 to 208 184 persons in…