A Case of Inflammatory Pseudotumor of the Trachea in a Child.

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Inflammatory pseudotumor is known as a non-specific inflammatory disease which masquerades as a tumor-like lesion. The most frequent localization of inflammatory pseudotumors is in the lung and the orbital cavity. Histopathological diagnosis is generally reported as "plasma cell granuloma"in the literatures.<BR>We reported the rare case of an inflammatory pseudotumor whish occurred in the trachea. An eight-year-old female who had been treated as having bronchial asthma was referred from a pediatrician because of uncontrollable dyspnea. Laryngeal fiberscopy found a tumor-like lesion in the subglottic space obstructing the airway. CT and MRI showed a mass on the posterior wall of the trachea.<BR>The patient underwent exploratory surgery with a median longitudinal tracheotomy approach. Histopathology showed an inflammatory pleomorphic cellular infiltration consisting of plasma cells, lymphocytes and histiocytes, with proliferating fibroblastic cells. these findings were consistent with an inflammatory pseudotumor.<BR>In order to control the regrowth of the pseudotumor, a second surgery was perfomed with submucosal mass resection and local injection of steroids. Additional treatment with steroids was effective. The patient has been tree from dyspnea up to the present time.
特定非営利活動法人日本気管食道科学会の論文