AIR MENISCUS AS A RADIOGRAPHIC FINDING - REVIEW OF LITERATURE AND PRESENTATION OF 9 UNUSUAL CASES

  • 1 January 1978
    • journal article
    • review article
    • Vol. 11  (2) , 167-183
Abstract
The air meniscus sign on the chest roentgenogram is represented by a fixed or mobile mass residing within a lung cavity. Hydatid lung disease and intracavitary mycetoma are most commonly associated with this finding. Additional disorders (9) rarely or never previously reported as associated with an air meniscus sign are reported. Included among these processes are pulmonary gangrene with Pseudomonas lung abscess, Klebsiella lung absces, bacterial ball, blood clot in a tuberculous cavity, bronchogenic carcinoma, cystic hamartoma, pulmonary hematoma and recurrent rhabdomyosarcoma. In addition, Bochdalek''s hernia may be discovered on a chest roentgenogram, showing the appearance of a mass within a thoracic cavity. A classification of infectious, neoplastic, developmental, traumatic and hemodynamic derangements which may on occasion produce an air meniscus sign on a chest radiograph are proposed.

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