Poorly differentiated large-cell neuroendocrine carcinoma of the paranasal sinus

Abstract The rheumatic diseases, which include systemic lupus erythematosus, rheumatoid arthritis, Beh çet's disease, scleroderma, and ankylosing spondylitis, are characterized by involvement of connective tissue, with multiple manifestations. In those diseases, there can be involvement of the peripheral or central nervous system, and that involvement can be primary, presenting as a major feature of the clinical presentation, or secondary, as an effect of the drugs used in order to control a given disease or its complications. Knowledge of the wide variety of imaging findings is crucial to the diagnosis of a rheumatic disease, especially in the early stages, enabling effective treatment and mi nimizing disability. This pictorial essay, presenting cases from the records of two tertiary teaching hospitals, encompasses cases of patients diagnosed with rheumatic disease and illustrates the neuroradiological findings on magnetic resonance imaging and computed tomography, in order to emphasize the importance of these methods for properly diagnosing rheumatic diseases.Resumo As doen ças reumatológicas, que incluem lúpus eritematoso sistêmico, artrite reumatoide, doença de Behçet, esclerodermia e espondilite anquilosante, são caracterizadas por envolvimento do tecido conjuntivo, com múltiplas manifestações. Nessas doenças, o envolvimento do sistema nervoso central ou periférico pode ser primário, apresentando-se como uma das principais características clínicas, ou se...
Source: Radiologia Brasileira - Category: Radiology Source Type: research