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  • Title: [A rare pulmonary lesion association].
    Author: Mlika M, Ayadi-Kaddour A, Marghli A, Ridène I, Maalej S, El Mezni F.
    Journal: Rev Pneumol Clin; 2012 Oct; 68(5):303-6. PubMed ID: 22766490.
    Abstract:
    INTRODUCTION: Pulmonary amyloidoma or nodular amyloidosis is a localized form of amyloidosis, which can mimic a bronchopulmonary carcinoma. This form of amyloidosis may be associated to an infectious, a systemic disease or a lymphoma. OBSERVATION: We describe the case of a 36-year-old patient whose past medical history was consistent for a diabetes mellitus and a hypothyroidism treated by medical treatment. The patient presented a Gougerot-Sjögren syndrome and was explored for non-specific respiratory symptoms. Physical examination was normal. Laboratory tests revealed a monoclonal pic of immunoglobulin. Radiologic findings showed bilateral pulmonary nodules associated to mediastinal lymph nodes. A pulmonary biopsy was performed. Histologic examination revealed a tumoral nodule containing an abundant eosinophilic material, which was acellular and surrounded by a dense lymphomatous infiltrate destroying the pulmonary parenchyma. Histochemical and immunohistochemical study revealed an association of a nodular pulmonary amyloidosis with a MAT pulmonary lymphoma complicating a Gougerot-Sjögren syndrome. CONCLUSION: The association of MALT pulmonary lymphoma and localized amyloidosis is rarely observed in case of Gougerot-Sjögren syndrome. The pathogenesis of this association remains unknown and the management non-consensual because of the rarity of the cases reported. Whereas, it appears that localized amyloidosis associated to a MALT lymphoma seems to have a better prognosis than a disseminated amyloidosis.
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