title: Gamma heavy-chain disease involving upper airway.
abstract: Gamma heavy-chain disease is a rare disorder. It is a plasma cell dyscrasia, with the patient's age at onset being 9 to 87 years. Identification of IgG heavy chains in the serum and urine is diagnostic. Histopathologic features are nonspecific. Although the clinical presentation is diverse, many signs and symptoms lead to early otorhinolaryngologic consultation. For this reason gamma-heavy-chain disease should be considered in the differential diagnosis of inflammatory lesions of the upper aerodigestive tract.
mesh_terms: D006362:Heavy Chain Disease / Q000175:diagnosis / Q000473:pathology; D006801:Humans; D007142:Immunoglobulin gamma-Chains; D008297:Male; D008875:Middle Aged; D012140:Respiratory Tract Diseases / Q000175:diagnosis / Q000473:pathology
chemical_list: D007142:Immunoglobulin gamma-Chains