{Reference Type}: Case Reports
{Title}: Diffusely distributed centrilobular micronodules and branching opacities as the main chest computed tomography manifestations in a patient with humidifier lung.
{Author}: Nakane C;Teshima T;Otake R;Nakagawa E;Kishimoto E;Suzuki K;Inaba R;Murakami Y;Aoshima Y;Nishimoto K;Matsushima S;Harada M;Imokawa S;
{Journal}: Respir Med Case Rep
{Volume}: 51
{Issue}: 0
{Year}: 2024
暂无{DOI}: 10.1016/j.rmcr.2024.102061
{Abstract}: We report a 60-year-old man with humidifier lung showing diffusely distributed centrilobular micronodules and branching opacities on chest computed tomography (CT). Fever and dyspnea occurred 2 months after using an ultrasonic humidifier. KL-6 and SP-D were within normal ranges. Bronchoalveolar lavage showed elevated lymphocytes (53 %) and histological findings of transbronchial lung biopsy demonstrated organizing pneumonia. His condition improved after cessation of the humidifier. A provocation test exhibited a positive response to the humidifier. Humidifier lung should be considered as a differential diagnosis in patients with these CT findings. Detailed clinical, pathological and microbiological examinations are needed to exclude other diseases.