myelitis

(mi-el-i’tis) (Gr. μνελός marrow]. 1. Inflammation of the bone-marrow. See osteomyelitis. 2. Inflammation of the spinal cord. Sce leukomyelitis, poliomyelitis. The symptoms of myelitis vary with the location of the lesion, and include pain in the back, girdle-sensation, hyperesthesia, formication, anesthesia, motor disturbances, paralysis, increase of the reflexes, paralysis of the sphincters, bed-sores, and, in the later stages, spasmodic contractions of the paralyzed limbs. acute m., simple my clit is due to exposure, disease, or injury. apoplectiform m., myelitis in which the paralysis comes on suddenly. ascending m., that which moves cephalad along the cord. bulbar m., that which involves the oblong at a. cavitary m., that which is accompanied by the formation of cavities. central m., affects chiefly the gray substance of the cord. m. cervica‘lis, my clit is affecting the cervical portion of the cord, and marked by muscular atrophy of the arms and spastic paralysis of the legs. chronic m., a slowly progre ing form. compre ion-m., a form due to pre ure on the cord, as of a tumor. concu ion-m., a form due to spinal concu ion. cornual m., that which affects the horns of gray matter in the cord. descending m., a my clit is that progre es caudad along the cord. diffuse m., involves large and variously placed sections of the cord. di eminated m., a form with several distinct foci. focal m., myelitis affecting a small area only. or in other cases several small areas. foudroyant m. Same as central m. Nhemorrhagic m., a form a ociated with hemorrhage. interstitial m., a variety in which the neuroglia is chiefly involved, resulting in increase of the interstitial matter and atrophy of the nervous ti ue. Called also sclerosing m. Cerebro- Same as myelin i- The act of 618