Diffuse thoracic lymphangiomatosis with disseminated intravascular coagulation in a child.

An 8.5-year-old girl who presented with chronic cough and hemoptysis underwent a CT scan of the chest showing diffuse mediastinal and parenchymal infiltration and pleural effusion, and laboratory findings showed disseminated intravascular coagulation. Disseminated lymphangiomatosis was diagnosed after an open-lung biopsy. She was treated by systemic steroids, interferon, tamoxifen, chemotherapy, and radiation but died of respiratory failure and disseminated intravascular coagulation 2 years after the diagnosis. This patient represents a rare presentation of diffuse pulmonary lymphangiomatosis together with disseminated intravascular coagulation, involving both the mediastinum and pulmonary parenchyma, in a child.