Directory of Diseases

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #
Medial Plica Syndrome

On the upper inner aspect of the knee, there is a fold in the synovial sac of the knee called the medial plica. In individuals who are very active, this synovial lining can become irritated and begin causing symptoms. Initially, people with this condition begin having pain and stiffness. The stiffness is most severe after sitting for a long time and can be severe enough to give the impression that the knee is locked up. Because the knee is not truly locked and can be moved, this is called 'pseudolocking'. The pain in medial plica syndrome occurs close to the upper knee cap on the inside of the knee. If you are a relatively active person experiencing knee pain in the upper medial part of the knee that occasionally causes stiffness or pseudolocking and you are experiencing a snapping or clicking with squatting, then you could have medial plica syndrome.

Median Nerve Entrapment

Median Nerve Entrapment, also known as Carpal Tunnel Syndrome, is a condition caused by compression of the median nerve located in the wrist. The median nerve contributes sensation to the palm side of the thumb and index finger, and also controls the motor functions of the thumb. The median nerve travels through a passage in the wrist called the carpal tunnel. Swelling in this tunnel causes compression of the nerve inside resulting in the symptoms of Carpal Tunnel Syndrome. Repetitive hand movements increase the risk of developing this disorder. Women, diabetics, and patients with rheumatoid arthritis are also more likely to develop this condition . If your wrist is hurting you and you have numbness or tingling to the fingers, then you may have Carpal Tunnel Syndrome.

Meniere's Disease

Meniere's disease is a problem of the inner ear that causes dizziness, a sensation of room spinning (vertigo), hearing loss, and ringing/roaring in the ear (tinnitus). Inside the inner ear there are fluid-filled canals, also called labyrinths, that are responsible for perception of movement and balance. As you move your head the fluid inside the canal moves which causes swaying of tiny hair cells which in turn send signals to your brain reporting the movement. When there is inflammation and a fluid build up in these canals it causes the system to malfunction and cause the symptoms of Meniere’s disease. The exact cause of this disease is unknown. It can occur at any age but is more common between the ages of 40 and 60.

Meningitis (pediatric)

Meningitis is an infection of the lining that surrounds the spinal cord and brain, called the meninges. The disease is most often caused by bacteria or viruses but can also have other causes such as other microorganisms (e.g. fungi) and medications. Different bacteria can cause this disease but the most serious is meningococcal meningitis caused by the bacteria Neisseria meningitidis. Meningitis is regarded as a medical emergency requiring immediate attention by a medical professional in an emergency room.

Meralgia paresthetica

Meralgia paresthetica is numbness and pain on the side of the hip or thigh that occurs from compression of the lateral femoral cutaneous nerve under the inguinal ligament. This nerve is responsible for sensation of the skin on the side of the hip and thigh. Like any nerve that gets "squeezed," it will eventually start to "fall asleep" and cause tingling, numbness, and possibly burning pain. The pain and numbness only exists on the side of the hip and upper thigh. With meralgia paresthetica, there shouldn't be any leg weakness or pain traveling down past the knee. This condition is commonly seen in people who are overweight, wear tight fitting clothing around the waist, and who have diabetes.