Medical

A clinical hallmark of meningitis, inflammation of the meninges, the membranes covering the brain and spinal cord.

A benign tumor arising from the periosteum, the dense membrane composed of fibrous connective tissue that closely wraps (invests) all bone (except the articular surfaces of bone in joints which are co

A dense membrane composed of fibrous connective tissue that closely wraps all bone except that of the articulating surfaces in joints, which is covered by a synovial membrane.

A dense membrane that is composed of fibrous connective tissue that closely wraps all cartilage except the cartilage in joints, which is covered by a synovial membrane.

A local accumulation of pus that forms next to the anus, causing tender swelling in that area and pain on defecation.

Migraine involving the eyes but without headache. Migraine, due to a spasm of blood vessels in the brain, usually causes a headache.

Severe hot flashes that occur at night and result in a drenching sweat. Night sweats can have many different causes, including medications, infections, and cancers.

Migraine involving the eyes but without headache. Migraine, due to a spasm of blood vessels in the brain, usually causes a headache.

This clinical hallmark of meningitis, inflammation of the meninges, the membranes covering the brain and spinal cord, is tested for by having the person lie supine (flat on the back), flex the thigh s

Malignant diseases of the lymphoid cells and of cells from the reticuloendothelial system that usually occur in people with compromised immune systems, such as patients with AIDS and recent transplant