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  • Title: [Pleural amyloidosis: thoracoscopic diagnosis and physiopathological approach].
    Author: Astoul P, Cheikh R, Cabanot C, Vialette JP, Vestri R, Boutin C.
    Journal: Rev Mal Respir; 1992; 9(6):629-31. PubMed ID: 1470756.
    Abstract:
    The authors report a case of pleural amyloidosis presenting as a generalised primary amyloidosis with immunological disturbance, in which the diagnosis was made at thoracoscopy. Bronchopulmonary disease during the course of generalised amyloidosis is frequent, but there are only thirteen cases of histologically proven pleural amyloidosis which have been reported in the literature. Using pleuroscopy the histology obtained enables a pathophysiological approach to this disease, taking account of the cells and enzymes found in the pleura, the inflammatory reactions suggests a local production at the pleura level and this would explain the exudative character of some effusions, although a transudate is most often described and is directly linked to congestive cardiac failure. The deposit of fibrin by occluding the stomas of Wang, explains the failure of the absorptive properties of the pleura and also the recurrent nature of these effusions. The pleural disease is without doubt, under-estimated in generalised amyloidosis and the character of the effusions variable. Most often there are transudates secondary to congestive cardiac failure, although exudates occur as a result of local inflammatory phenomena. Amyloidosis should be remembered as a possible cause of exudative pleurisy.
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