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Background: Inflammatory pseudotumors are characterized histopathologically by aggregates of inflammatory lymphocytes, plasma cells, neutrophils, and fibroblasts. We report a rare case of inflammatory pseudotumor involving both the conjunctiva and lung. Case: A 58- year-old man with a 6- year history of pulmonary inflammatory pseudotumor was referred to our hospital for evaluation of conjunctival swelling in the left eye and bilateral iritis. Observations: The subconjunctival tumor enlarged slowly, but regressed spontaneously. After partial resection of the subconjunctival and lung tumors, the presence was confirmed of aggregates of chronic inflammatory cells (lymphocytes, plasma cells, neutrophils, fibroblasts) without noncaseating epithelioid granuloma formation. Gene rearrangement testing ruled out malignancy. The patientwas treated with oral corticosteroids for fever and primary biliary hepatic cirrhosis. Iritis signs subsided slightly in response to corticosteroids, but persisted. The temporal subconjunctival pseudotumor resolved without recurrence. Conclusions: This case was compatible histopathologically with inflammatory pseudotumor, and is a rare case of simultaneous occurrence in the lung and conjunctiva.
Background: Inflammatory pseudotumors are characterized by histopathologically by aggregates of inflammatory lymphocytes, plasma cells, neutrophils, and fibroblasts. We report a rare case of inflammatory pseudotumor involving both the conjunctiva and lung. Case: A 58- year-old man with a 6-year history of pulmonary inflammatory pseudotumor was referred to our hospital for evaluation of conjunctival swelling in the left eye and bilateral iritis. Observations: The subconjunctival tumor enlarged slowly, but regressed spontaneously. After partial resection of the subconjunctival and lung tumors, the presence was confirmed of aggregates of chronic inflammatory cells (lymphocytes, plasma cells, neutrophils, fibroblasts) without noncasecase of epithelioid granuloma formation. Gene rearrangement testing ruled out malignancy. The patient was treated with oral corticosteroids for fever and primary biliary hepatic cirrhosis. Iritis signs subsided slightly in response to corticosteroids , but persisted. The temporal subconjunctival pseudotumor resolved without recurrence. Conclusions: This case was compatible histopathologically with inflammatory pseudotumor, and is a rare case of simultaneous occurrence in the lung and conjunctiva.