A 34-year-old man was admitted to the hospital because of left ear pain with hearing loss and facial droop on the left side.

Preclinical and observational studies suggest that exercise may improve cancer outcomes. However, definitive level 1 evidence is lacking. In this phase 3, randomized trial conducted at 55 centers, ...

Hairy-cell leukemia (HCL) is a rare, indolent neoplasm of mature B cells with hairlike surface projections that circulate in the blood and preferentially infiltrate the bone marrow and spleen.

Primary central nervous system (CNS) vasculitis is a rare, frequently misdiagnosed condition that affects the brain and spinal cord and is characterized by a variety of neurologic symptoms at ...

This review article presents two true-life clinical vignettes that illustrate how digital health technology can aid providers caring for patients with epilepsy. Specific information that would ...

Adverse events during hospitalization are a major cause of patient harm, as documented in the 1991 Harvard Medical Practice Study. Patient safety has changed substantially in the decades since ...

Snakes are predators, and with exceptions (e.g., egg-eating snakes), they subdue their prey through constriction, aggressive biting, and chewing or by using venom. The mechanism of venom delivery ...

Pulmonary hypertension is a syndrome characterized by marked remodeling of the pulmonary vasculature and a progressive rise in the pulmonary vascular load, leading to hypertrophy and remodeling of ...

Pheochromocytoma fascinates and, at times, confounds clinicians. The symptoms due to hypersecretion of catecholamines can mimic more than 30 medical disorders. 1 This rare tumor can be lethal if ...

What Is an Extracellular Vesicle? Extracellular vesicles are membrane-bound organelles that are extruded from tissues containing different types of molecular cargo (e.g., RNA, protein, and ...

The images were obtained with a neonatal retinal imaging system (RetCam, Clarity Medical Systems). Panel A shows a line between the vascularized and avascularized retina (stage 1). Panel B shows a ...

Results of Selected Clinical Trials in Patients with ALL. Data were modified from Pui and Evans 10 to include recently described T-cell genotypes. 15 The genetic lesions that are exclusively seen ...