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Case Reports

Consequences of a Wait-and-See Strategy for Benign Metastasizing Leiomyomatosis of the Lung

^a Department of Cardiothoracic Surgery, Medical University of Vienna, Vienna, Austria
^b Department of Radiology, Medical University of Vienna, Vienna, Austria
^c Department of Dermatology, Medical University of Tübingen, Germany

Accepted for publication June 3, 2008.

^_* Address correspondence to Dr Ankersmit, Department of Cardiothoracic Surgery, Medical University of Vienna, Währinger Gürtel 18-20, Vienna, 1090, Austria (Email: hendrik.ankersmit{at}meduniwien.ac.at).

Pulmonary benign metastasizing leiomyomatosis (BML) is a rare smooth-muscle cell disorder of the lung. Most BML lesions stay constant in size for a long time. The prevailing treatment option is primary excision of the nodules or if unresectable, long-time hormone therapy. Herein, we present a case of BML in which a wait-and-see strategy after diagnosis was decided. Fourteen years later a routine chest roentgenogram revealed multiple bi-lobar BML lesions with a giant cyst filling the whole left lung cavity. We conclude that a wait-and-see procedure for BML is feasible, but primary resection of the BML tumor masses is preferable to avoid complications as described in our case.