No abstract available.
Carcinoma, Papillary ; Lung ; Lung Neoplasms ; Multiple Pulmonary Nodules ; Thyroid Gland

Myopericytoma is a benign tumor that occurs in soft tissues. Myopericytoma in the lungs is very rare. We report the case of a 63-year-old woman presenting with cavitary masses in the left lung and multiple tiny nodules in both lungs. She underwent surgery, and a histological examination revealed primary pulmonary myopericytoma.
Female ; Humans ; Lung ; Middle Aged ; Multiple Pulmonary Nodules

When pulmonary nodules are detected in children receiving chemotherapy for osteosarcoma, it is often assumed that they have metastatic disease. However, these pulmonary nodules do not always represent metastatic disease. There are considerable similarities in the computed tomography (CT) images of benign pulmonary nodules and those of malignant nodules. Therefore, we have to be careful when diagnosing pulmonary metastases based on chest CT scan alone. We report a case of benign multiple pulmonary nodules in a patient with osteosarcoma.
Child ; Humans ; Multiple Pulmonary Nodules ; Neoplasm Metastasis ; Osteosarcoma ; Thorax

Lung cancer has the highest mortality rate among all malignant tumors. The key to reducing lung cancer mortality is the accurate diagnosis of pulmonary nodules in early-stage lung cancer. Computer-aided diagnostic techniques are considered to have potential beyond human experts for accurate diagnosis of early pulmonary nodules. The detection and classification of pulmonary nodules based on deep learning technology can continuously improve the accuracy of diagnosis through self-learning, and is an important means to achieve computer-aided diagnosis. First, we systematically introduced the application of two dimension convolutional neural network (2D-CNN), three dimension convolutional neural network (3D-CNN) and faster regions convolutional neural network (Faster R-CNN) techniques in the detection of pulmonary nodules. Then we introduced the application of 2D-CNN, 3D-CNN, multi-stream multi-scale convolutional neural network (MMCNN), deep convolutional generative adversarial networks (DCGAN) and transfer learning technology in classification of pulmonary nodules. Finally, we conducted a comprehensive comparative analysis of different deep learning methods in the detection and classification of pulmonary nodules.
Deep Learning ; Humans ; Multiple Pulmonary Nodules ; Neural Networks, Computer ; Solitary Pulmonary Nodule ; Tomography, X-Ray Computed

Humans ; Multiple Pulmonary Nodules ; Lung ; Lung Neoplasms/surgery* ; Solitary Pulmonary Nodule/surgery* ; Bronchoscopy

A benign metastasizing pulmonary leiomyoma (BMPL) is a rare disease that usually occurs in women with a prior or coincident history of uterine leiomyoma. Although leiomyoma is histologically benign, it has the potential to metastasize to a distant site such as the lung. A 35 year old woman who had undergone a hysterectomy due to uterine leiomyoma 5 years prior was admitted for an investigation of multiple pulmonary nodules on a routine chest roentgenogram. An open lung biopsy was taken to make a pathological diagnosis. The microscopic finding of the nodules was leiomyoma and was similar to those of the uterine leiomyoma that had been resected 5 years ago. The woman underwent wedge resections of all pulmonary nodules. This is the first case of BMPL in Korea, which was treated with wedge resections of all multiple pulmonary nodules.
Adult ; Biopsy ; Diagnosis ; Female ; Humans ; Hysterectomy ; Korea ; Leiomyoma* ; Lung ; Multiple Pulmonary Nodules ; Rare Diseases ; Thorax

Bronchioloalveolar carcinoma is a disease with an insidious onset and various radiologic manifestations. A solitary peripheral pulmonary nodule, multiple nodules and lobar or diffuse consolidation are the common radiological findings. We report here on a case of bronchioloalveolar carcinoma mimicking DILD (diffuse interstitial lung disease) in a 60 year-old male that manifested as multiple peripheral consolidations, ground-glass opacities, subpleural lines, pleural thickening and interlobular septal thickening on CT.
Adenocarcinoma, Bronchiolo-Alveolar* ; Humans ; Lung ; Lung Neoplasms ; Male ; Middle Aged ; Multiple Pulmonary Nodules

Desmoid tumors are rare soft tissue tumors considered to have locally infiltrative features without distant metastasis until now. Although they are most commonly intraabdominal, very few cases have extra-abdominal locations. The origin of intrathoracic desmoid tumors is predominantly the chest wall with occasional involvement of pleura. True intrathoracic primary desmoid tumors with no involvement of the chest wall or pleura are extremely rare. We recently experienced a case of true intrathoracic desmoid tumor presenting as multiple lung nodules at 13 years after resection of a previous intraabdominal desmoid tumor.
Abdominal Wall* ; Fibromatosis, Aggressive* ; Lung* ; Multiple Pulmonary Nodules ; Neoplasm Metastasis ; Pleura ; Thoracic Wall ; Thorax

BACKGROUND: Caplan originally described a condition, now reffered to as Caplan's syndrome or Caplan's disease, where progressive massive fibrosis was exhibited by coal miners with multiple pulmonary nodules, and rheumatoid arthritis. This syndrome is very rare in Korea. CASE REPORT: The patient was a 49-year old male, with occupational history as a stonemason for 25 years. Silicosis was diagnosed by chest X-ray, while rheumatoid arthritis was diagnosed by immunological examination. Caplan's syndrome was confirmed based on these findings, occupational history, and clinical symptoms. DISCUSSION: The authors report on the patient's Caplan's syndrome, with a particular focus on his silicosis.
Arthritis, Rheumatoid ; Caplan Syndrome ; Coal ; Fibrosis ; Humans ; Korea ; Male ; Multiple Pulmonary Nodules ; Pneumoconiosis ; Silicosis ; Thorax

Diffuse pulmonary ossification is rare disease of unknown etiology. Since the first description by Luschka in 1856, about 140 cases have been reported worldwide, but no such case has been reported in Korea yet. We report 40-year-old woman who was diagnosed as diffuse nodular pulmonary ossification on open lung biopsy. She has no respiratory symptoms & physical findings and no previous disease history. She was incidentally found to have multiple pulmonary nodules on roentgenographic examination. Open lung biopsy was done for above lesion and S he was proven to have diffuse nodular pulmonary ossification. She was followed by roentgenographic examination and showed no progression.
Adult ; Biopsy ; Female ; Humans ; Korea ; Lung ; Multiple Pulmonary Nodules ; Rare Diseases