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Background: Concomitant myocardial and cutaneous metastases of squamous cell lung cancer after left pneumonectomy are very rare. Although nivolumab is used as a standard second-line chemotherapy for non-small cell lung cancer(NSCLC), its efficacy for concomitant myocardial and cutaneous metastases remains unclear., Case: A 66-year-old man with no chief complaints was diagnosed with myocardial metastasis by CT scan. The patient underwent radical left pneumonectomy for squamous cell lung cancer 12 months previously and had rejected adjuvant chemotherapy with pT2aN1M0- II B(7th edition). A skin lesion in the left side of the neck was diagnosed as cutaneous metastasis by cytological examination. First-line treatment with cisplatin plus gemcitabine was administered; it was then replaced with nivolumab as a second-line chemotherapy after the progression of the disease due to myocardial metastasis. Fortunately, after 5 courses of nivolumab, there was a reduction in the cutaneous metastasis, which allowed complete resection, and reduction in the volume of myocardial metastasis. The patient is alive 30 months after left pneumonectomy and 18 months after the diagnosis of relapse. Nivolumab treatment is on-going., Conclusion: Complete resection of a cutaneous metastasis of squamous cell lung cancer and a reduction in the volume of myocardial metastasis were achieved following nivolumab treatment. Thus, nivolumab is a useful chemotherapy for concomitant cutaneous and myocardial metastases of squamous cell lung cancer.

Cases of rescue after rupture of pyogenic liver abscess into the thorax are rare. Here, we report 2 cases of rescue in patients with acute empyema due to rupture of a suppurative abscess into the thorax. Case 1:A 61-year-old male had high fever of 39 °C and right abdominal pain. Thoracic computed tomography(CT) showed encapsulated pleural effusion in the right thorax and ring-like enhancement in the right liver. The diagnosis was acute empyema caused by rupture of liver abscess. The pathogenic bacteria were Streptococcus group. The drain was removed after 6 days and the patient was discharged 32 days after surgery without reefing the diaphragm. Case 2:A 74-year-old male had a high fever of 39 °C and right chest pain. CT showed encapsulated pleural effusion in the right thorax, but not in the lung, and a low density area in the posterior segment of the liver. The diagnosis was acute empyema caused by rupture of liver abscess. The pathogenic bacteria were Streptococcus group and Bacteroides. The drain was removed after 8 days and the patient was discharged 32 days after surgery without reefing the diaphragm., Conclusion: Pathogenic bacteria in a pyogenic liver abscess are usually Gram-negative rods, but recently have also been reported to be Streptococcus anginosus group( SAG). Coinfection with SAG and anaerobic bacteria occurs in elderly patients, compromised hosts, and patients with a severe malignant disease. Therefore, early drainage using surgical treatment regardless of reefing the diaphragm should be considered to control severe infection due to liver abscess rupture.

We report a rare case of pulmonary lipomatous hamartoma. A 61-year-old male was referred to our hospital due to abnormal mass densities on a chest radiograph. Thoracic computed tomography (CT) revealed a tumor with a maximum diameter of 42 mm. Bronchoscopic examination indicated the presence of a tumor at the orifice of the lateral segmental bronchus which was obstructed by the tumor. Endobronchial lipoma, was suspected by transbronchial biopsy, and we carried out a left upper lobectomy to prevent obstructive pneumonia. The pathological diagnosis was lipomatous hamartoma.

A 26-year-old man was admitted because of an abnormal shadow on a chest roentgenogram. Computed tomography(CT) revealed a very large tumor in the anterior mediastinum and bilateral mediastinal lymphadenopathy. Examination of a CT-guided biopsy specimen revealed a yolk-sac tumor. The patient received 4 courses of bleomycin, etoposide, and cisplatin chemotherapy. After chemotherapy, the tumor was markedly reduced in size, but the lymphadenopathy remained. The patient underwent thoracoscopic biopsy of the mediastinal lymph nodes. Sarcoid nodules were found in all the biopsied nodes, and the lymphadenopathy was thought to be a sarcoid-like reaction associated with the germ cell tumor. Resection of the residual tumor was performed according to the treatment algorithm of the International Germ Cell Cancer Collaborative Group. There were no viable tumor cells in the resected tissue. The patient is free of recurrence and without any sign of generalized sarcoidosis 3 years after the surgery.