Pulmonary sclerosing pneumocytoma mimicking a low-grade primary malignancy: A case report.

Introduction: Pulmonary sclerosing pneumocytoma (PSP) is a rare benign tumor classified as a pulmonary adenoma. It presents as a solitary pulmonary nodule without any specific findings, often posing a diagnostic challenge. We herein present a case of a PSP with a short volume doubling time (VDT) comparable to low-grade pulmonary malignancies.

A solitary pulmonary nodule in a former glass blower mimicking a primary lung adenocarcinoma.

Introduction: Inhalation of silicon dioxide causes silicosis, a condition that may occur in various industries and work settings. Radiologic findings typically show numerous nodular opacities, while solitary pulmonary nodules are atypical for silicosis.

Presentation Of Case: A 68-year-old woman, a former glassblower, presented with a left solitary pulmonary nodule (13 mm) on chest computed tomography.

Elective video-assisted thoracic surgery for a ruptured mature mediastinal teratoma: A case report.

Introduction And Importance: Mature mediastinal teratomas can rarely become symptomatic after a compression of surrounding organs and a rupture and are often treated with an emergency open approach such as median sternotomy. Clinical significance of thoracoscopic approach as elective setting is unknown.

Case Presentation: A previously healthy 21-year-old man presented with worsening left-sided chest pain for one week.

Spontaneous transient size reduction of a solitary pulmonary metastasis from a leiomyosarcoma.

Background: A solitary pulmonary nodule (SPN) poses a diagnostic challenge, which includes both a benign and malignant etiology. A size enlargement often indicates malignancy. We herein describe a case of a solitary pulmonary metastasis from a leiomyosarcoma that regressed transiently during follow-up.

Subpleural emphysema as a rare initial manifestation of an iatrogenic tracheal penetration: a case report.

Background: Iatrogenic tracheal injury is a rare but potentially morbid condition and often poses a diagnostic challenge due to its rarity and the lack of specific clinical findings. Because a delayed diagnosis is associated with a higher mortality, a prompt diagnosis is essential. We report a case of an iatrogenic tracheal injury detected by subpleural emphysema as a rare initial manifestation.

Spontaneous closure of a metachronous brochopleural fistula after omentoplasty for a preceding fistula: Case report.

Introduction: A bronchopleural fistula (BPF) after an anatomical lung resection commonly arises singly. We report a case of a metachronous BPF, which developed after omentoplasty of a preceding fistula and subsequently closed without any intervention.

Case Presentation: A 77-year-old patient underwent omentoplasty for a brochopleural fistula (BPF) following a right lower lobectomy.

Sudden hemothorax as a rare initial manifestation of bronchiectasis under a direct oral anticoagulant.

Background: A hemothorax as the initial manifestation of bronchiectasis is extremely rare. We report a case of a sudden hemothorax due to exacerbation of clinically latent bronchiectasis under a direct oral anticoagulant.

Case Presentation: A 77-year-old woman presented with chest pain and a fever noted since the day before.

Spontaneous regressions in non-small cell lung cancer with different clinical outcomes.

Introduction And Importance: Spontaneous regression (SR) of cancer is extremely rare in non-small cell lung cancer and the exact pathogenesis is unclear.

Case Presentations: A 69-year-old man underwent a right upper lobectomy for a squamous cell carcinoma histologically confirmed 8 weeks prior. A histopathological examination of the surgical specimen revealed no viable cancer.

Solitary fibrous tumor of the pleura mimicking a soft tissue sarcoma of the chest wall.

Introduction And Importance: Solitary fibrous tumors of the pleura (SFTPs) present a diagnostic challenge. We herein report a successful case mimicking a soft tissue sarcoma of the chest wall by a meticulous evaluation of the conventional images.

Case Presentation: A 51-year-old woman presented with a left thoracic mass.

Solitary pulmonary nodule as the initial manifestation of isolated metastasis from prostate cancer without bone involvement: A case report.

Introduction: Isolated lung metastases from prostate cancer without any other organ involvement are rare. They are commonly in the form of diffuse or multiple lesions and rarely emerge as a solitary pulmonary nodule.

Presentation Of Case: A 61-year-old man who had undergone a laparoscopic-assisted radical prostatectomy for prostate cancer 16 months prior presented with a growing solitary pulmonary nodule.

Fissure-first bilobectomy of a giant lung abscess combined with a squamous cell carcinoma via a minimally invasive open surgery.

Background: Fissureless lobectomies are beneficial for preventing prolonged air leaks (PALs). Despite the widespread use of this technique in lobectomy cases, there have been no reports on fissureless bilobectomies to date.

Case Presentation: A 73-year-old man with an 80-pack per year smoking history was diagnosed with a stage 1 primary squamous cell carcinoma in the right lower lobe.

Mediastinal hemangioma mimicking an invasive tumor growth: A case report.

Introduction And Importance: Mediastinal hemangiomas are a rare entity frequently developing in the anterior mediastinum. They may exhibit an infiltrating appearance into the surrounding tissue, and extensive surgery is often required despite its benign nature. We report a case of a mediastinal hemangioma mimicking an invasive tumor growth requiring a combined resection of the lung and diaphragm.

Anomalous systemic arterial supply to the basal lung segments with high serum carbohydrate antigen 19-9 levels-a case report.

Anomalous systemic arterial supply to the basal lung segments is relatively rare. A 39-year-old Japanese man was found to have high serum carbohydrate antigen 19-9 levels during a routine medical examination. He had no medical history and no symptoms.

Salvage surgery for primary lung cancer complicated with Trousseau's syndrome after chemotherapy: a case report.

A 65-year-old man was admitted to our hospital due to an abnormal shadow on chest radiographs. Chest computed tomography (CT) revealed a tumor (diameter: 38 mm × 27 mm) and another small nodule in the left upper lobe of the lung, which were accompanied by lymphangitis of the left upper lobe. The patient underwent a transbronchial lung biopsy, following which he was diagnosed with lung adenocarcinoma.

Computed tomography-guided tube thoracostomy for massive subcutaneous emphysema following lung resection: a case report.

A 70-year-old man underwent right-sided pulmonary bilobectomy (removal of the middle and lower lobes) for stage IIIA non-small-cell lung carcinoma. Following the operation, there was minor air leakage through the intercostal drain from postoperative day 0 to 2, which stopped completely by postoperative day 3. The subsequent postoperative course was uneventful, and the patient was discharged on postoperative day 7 after removal of the chest tube.

A risk scoring system for predicting visceral pleural invasion in non-small lung cancer patients.

Objective: This study aimed to construct a simple scoring system for predicting visceral pleural invasion of non-small cell lung cancer (NSCLC) from computed tomography (CT) findings and clinicopathological factors in lesions directly under the pleural membrane.

Methods: Among 376 cases of surgically treated NSCLC, cases in which the tumor was ≤ 7 cm in diameter and in contact with the pleura on the CT image were retrospectively extracted and examined. The CT findings and clinicopathological factors associated with the presence of pathological pleural invasion in each case were examined by Fisher's exact test.

Postoperative hemorrhage after right upper lobectomy associated with apixaban use: a case report.

A 76-year-old Japanese man underwent right upper lung lobectomy for lung cancer. He had a medical history of atrial fibrillation and myocardial infarction, and was treated with medications including apixaban (5 mg twice daily). His postoperative course was uneventful, and he left the hospital on the ninth day postoperatively.

A case of malignant mesothelioma detected hydropneumothorax.

A 61-year-old man was admitted to the emergency room because of sudden right chest pain and dyspnea. A chest X-ray and chest computed tomography (CT) revealed severe right pneumothorax with massive pleural effusion. Chest drainage was performed and approximately 1.

Predictors of indocyanine green visualization during fluorescence imaging for segmental plane formation in thoracoscopic anatomical segmentectomy.

Background: To determine factors predicting indocyanine green (ICG) visualization during fluorescence imaging for segmental plane formation in thoracoscopic anatomical segmentectomy.

Methods: Intraoperatively, the intravenous ICG fluorescence imaging system during thoracoscopic anatomical segmentectomy obtained fluorescence emitted images of its surfaces during lung segmental plane formation after the administration of 5 mg/body weight of ICG. The subtraction of regularization scale for calculating the exciting peaks of ICG between the planned segments to resect and to remain was defined as ΔIntensity (ΔI).

Pulmonary vein stump thrombus: an early complication following upper division segmentectomy of the left lung.

We report a rare case of a pulmonary vein stump thrombus detected by a contrast-enhanced computed tomography for transient syncope 2 days after upper division segmentectomy of the left lung for metastatic pulmonary tumor. The thrombus disappeared without embolic events after anticoagulation with intravenous heparin followed by oral warfarin. Considering this case and previous reports, thoracic surgeons should be aware of pulmonary vein stump thrombus, a latent source of systemic embolization, after pulmonary resection, especially lobectomy or segmentectomy of the left upper lobe.