Study data presented at ACTRIMS 2026 suggests clinical MS onset may precede laboratory-confirmed primary EBV infection in some patients.

Background. A 44-year-old, HIV-positive man presented with a painless swelling of his left testicle. He underwent left radical orchiectomy for a pathological stage T1 nonseminomatous germ cell tumor ...

In this Journal feature, information about a real patient is presented in stages (boldface type) to an expert clinician, who responds to the information by sharing relevant background and reasoning ...

Researchers assessed whether clinical indicators of multiple sclerosis could precede laboratory evidence of primary Epstein-Barr virus infection. Approximately one-quarter of patients with multiple ...

The main diagnostic dilemma in normocalcemic hyperparathyroidism is differentiating this condition from secondary hyperparathyroidism and other causes of elevated parathyroid hormone (PTH) levels in ...

Mono is usually diagnosed based on symptoms, a physical exam, and blood tests. The monospot test is no longer recommended due to its inaccuracy. You or your child might not recognize the onset of mono ...

What is infectious mononucleosis (mono)? Infectious mononucleosis is a type of infection. It causes swollen lymph glands, fever, sore throat, and often extreme fatigue. It’s often spread through ...

Infectious Mononucleosis: What It Is, Symptoms, Causes, Diagnosis, Treatment and More MONDAY, Feb. 2, 2026 (HealthDay News) — Infectious mononucleosis, often called “mono,” is a viral illness best ...

Infectious mononucleosis, often called "mono," is a viral illness best known for causing extreme fatigue, sore throat and swollen glands. Mono is often referred to as the "kissing disease," because it ...

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