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MGUS polyneuropathy or polyneuropathy associated with an M component is a rare neurological disease characterized by inflammation of the peripheral nervous system and monoclonal gammopathy of undetermined significance (MGUS). It was first described in the 1960s.
Anti-MAG peripheral neuropathy is a specific type of peripheral neuropathy in which the person's own immune system attacks cells that are specific in maintaining a healthy nervous system. As these cells are destroyed by antibodies , the nerve cells in the surrounding region begin to lose function and create many problems in both sensory and ...
MGUS occurs in over 3 percent of the White population over the age of 50, and is typically detected as an incidental finding when patients undergo a protein electrophoresis as part of an evaluation for a wide variety of clinical symptoms and disorders (e.g., peripheral neuropathy, vasculitis, hemolytic anemia, skin rashes, hypercalcemia, or ...
Peripheral neuropathy may be classified according to the number and distribution of nerves affected (mononeuropathy, mononeuritis multiplex, or polyneuropathy), the type of nerve fiber predominantly affected (motor, sensory, autonomic), or the process affecting the nerves; e.g., inflammation (), compression (compression neuropathy), chemotherapy (chemotherapy-induced peripheral neuropathy).
In 1982 Lewis et al. reported a group of patients with a chronic asymmetrical sensorimotor neuropathy mostly affecting the arms with multifocal involvement of peripheral nerves. [47] Also in 1982 Dyck et al reported a response to prednisolone to a condition they referred to as chronic inflammatory demyelinating polyradiculoneuropathy. [ 48 ]
Treatment of patients with this POEMS syndrome variant who have evidence of bone lesions and/or myeloma proteins are the same as those for POEMS syndrome patients. In the absence of these features, treatment with rituximab , a monoclonal antibody preparation directed against B cells bearing the CD20 antigen, or siltuximab , a monoclonal ...