What is Zollinger-Ellison syndrome? Zollinger-Ellison syndrome (ZES) is a rare digestive disorder. If you have ZES, you likely have 1 or more tumors in the first part of the small intestine, the ...

Superior vena cava syndrome (SVCS) is caused by a gradual compression of the superior vena cava resulting in obstruction of its blood flow. Dyspnea and facial swelling are the most common symptoms.

Systemic symptoms may include symmetrical proximal muscle fatigue, fever, anorexia, weight loss, and Raynaud's syndrome. Erythema Gyratum Repens (EGR) is characterized by concentric erythematous ...