• Journal of radiological science and technology
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• v.34 no.3
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• pp.203-208
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• 2011

In this study, we investigated factors for affecting pneumothorax in percutaneous needle aspiration biopsy of lung lesions. This research were conducted at University Hospital in Daejeon from August 2007 to May 2008. Total 104 patients between the ages of 25~85 who had focal lung lesions were grouped in terms of the tumor location, tumor size, depth of lesion, gender, age, biopsy time, and the number of biopsies. Then, their correlations with pneumothorax were studied. The incidence of pneumothorax according to the positions showed 27.3% in the right lower lobe, 24.3% in the right upper lobe, 15% in the left lower lobe and 12% in the left upper, respectively. In addition, the incidence by lesion size showed 24.0% in 0~2.0 cm, 18.2% in 2.1~4.0 cm, above 20.0% in 4.1 cm respectively. The probabilities of pneumothorax was 6.7% at 0 cm depth of lesion, 24.2% at 0.1~2.0 cm and greater than 26.8% at 2.1 cm. By gender differences, we found that probability of incidence of pneumothrax is 21.7% for male and 17.1% for female. According to age, pneumothorax occurred in 25% in the group of less than 40-years-old, 11.7% in 41~50 years, 14.3% in 51~60 years, 24.1% in 61~70 years old and 24.1% in over 70 years. According to the time of biopsy, the incidence of pneumothorax was 3.8% from 0 to 10.0 minutes, 18.9% from 10.1 to 20.0 minutes and 40% more than 21 minutes.

• Journal of Chest Surgery
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• v.42 no.6
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• pp.789-791
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• 2009

Tuberculoma of the lungs is not an uncommon finding, but an ectopic liver in the lung is extremely rare. Pulmonary tuberculosis presenting as tuberculoma can be diagnosed radiologically, but its definite diagnosis is established by confirmation of the acid-fast bacillus or the unique histology. We report here on a case of tuberculoma of the left lower lobe that was erroneously diagnosed as ectopic liver by ultrasono-guided fine needle aspiration biopsy. An understanding of the normal variants of the liver can prevent a patient from undergoing an unnecessary invasive procedure.

• Journal of the Korean Society of Radiology
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• v.84 no.1
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• pp.311-317
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• 2023

CT-guided percutaneous transthoracic needle biopsy (PTNB) plays a key role in the diagnosis of pulmonary abnormalities. Although the procedure is considered safe and effective, there exists a potential for complications, such as pneumothorax, hemorrhage, hemoptysis, air embolism, and tumor seeding. However, pneumatoceles after CT-guided PTNB have been rarely reported. Herein, we report two cases of pneumatoceles that developed immediately after PTNB for primary lung cancer. A pneumatocele filled with hematoma should be considered in cases with a newly developed nodule along the needle tract during short-term follow-up CT after PTNB.

• Journal of Chest Surgery
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• v.29 no.9
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• pp.1036-1039
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• 1996

Pulmonary carcinosarcon!as are rare malignant tumors consisting of an admixture of epithelial and mas- enchymal elements of the type ordinarily seen in malignancies of adults. Compared with all pulmonary neoplasms it occurs with a frequency of 0.3% and has a strong association with smoking. Carcinosarcomas be divided into two clinicopathologic groups based on the locution of the lung: a solid parenchymal type and a central or endobronchial lesion Noninvasive diagnostic tests have a rather low yield in detecting carcinosarcoma. The most frequent metastatic sites are hilar and mediastinal Lymph nodes. Surgical resection is both diagnostic and the initial treatment. The prognosis is poor and average postoperative survival is 9 months. We report one case of pulmonary carcinosarcoma demonstrated by immunohlstochemical staining in a 61 year old male patient with a review of literatures.

• Tuberculosis and Respiratory Diseases
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• v.39 no.6
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• pp.542-547
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• 1992

Tuberous sclerosis is an autosomal dominant disorder characterized by mental retardation, epilepsy, and adenoma sebaceum. Associated lesions include retinal phacomata, shagreen patches, subungal fibromata, and benign visceral tumors such as pulmonary lymphangioleiomyomatosis. Lymphangioleiomyomatosis occurs exclusively in women, usually during the child-bearing years, and is characterized by proliferation of smooth muscle along the lymphatic vessels of the lung, thorax, abdomen. Proliferation of smooth muscle results in interstitial and obstructive lung disease, recurrent pneumothorax, and chylous pleural effusions. We saw two cases of pulmonary lymphangioleiomyomatosis associated with tuberous sclerosis in women of reproductive age. We report the cases with a brief review of the literatures.

• Journal of Chest Surgery
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• v.31 no.9
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• pp.907-910
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• 1998

Primary leiomyosarcoma is an extremely rare tumor. We exprienced a case of 46-year-old man with a mass located in the left upper lobe bronchus which was discovered on a chest CT. Cytology of the sputum and bronchoscopic biopses did not reveal any malignant cells. The patient underwent a left sleeve upper lobectomy. The tumor was growing from the left upper lobe bronchus and had partially destroyed the lung parenchyme. The pathologic feature of the tumor was composed of fascicular arrayed cellular spindle cells with blunt-ended nuclei revealed mild to moderate pleomorphism and frequent mitoses (15/10HPF). The immunohistochemical staining was revealed positive reaction for antibody to smooth muscle actin and desmin. We conclude that the tumor is leiomyosarcoma of the lung and then report with a review of the literatures.

• Tuberculosis and Respiratory Diseases
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• v.61 no.1
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• pp.54-59
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• 2006

Background: Although there have been several studies regarding the clinical value of an automated TB-PCR study using sputum, bronchial washing, and other body fluid samples for the detection of pulmonary tuberculosis, there are only a few reports on the use of fresh tissue samples. Materials and methods: The acid-fast bacilli stain(AFB), tuberculosis culture, automated TB-PCR study, and histopathology examination were performed in 42 fresh tissue samples. Results: Among the 42 cases, 18 cases were diagnosed with tuberculosis based on the clinical findings. Sixteen of the 18 cases were TB-PCR positive and of these 16 cases, only 2 cases were positive in the AFB stain or culture study. However, all 18 cases showed the histopathology findings of chronic granulomatous inflammation that was compatible with tuberculosis. Based on the clinical findings, the sensitivity, specificity, positive predictability, and negative predictability of the automated TB-PCR study were 88.9%, 100%, 100%, and 92.3% respectively. Conclusion: An automated TB-PCR assay is an important diagnostic tool for diagnosing tuberculosis in fresh tissue samples.

• Journal of Chest Surgery
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• v.37 no.11
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• pp.946-950
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• 2004

Hemangiopericytoma of the lung is a very rare malignant tumor despite it's high vasculities of the lung, because, this tumor arises from the pericytes enveloping capillaries. A pulmonary hemangiopericytoma was diagnosed in a 63-year-old female who had complained of cough, sputum, and intermittent chest pain for about 8 years. She was admitted to our hospital, because of progressive severe dyspnea on exertion and orthopnea for about 3 months. She was taken explothoracotomy and left pneumonectomy including evacuation of lots of blood clots due to ruptured large tumor and ineffective drainage with closed thoracic tube. She was discharged at post-operative 7 days under very good condition. She has been treated with radiotherapy&chemotherapy since then.

• Journal of Chest Surgery
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• v.35 no.12
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• pp.909-913
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• 2002

The large cell neuroendocrine carcinoma is uncommon and its diagnostic criteria was recently established as pulmonary neuroendocrine carcinoma. A 74-year-old man who was a heavy smoker without symptoms was presented with a lung mass in right lower lobe. He was diagnosed as having large cell neuroendocrine carcinoma by needle biopsy. He was treated with right lower lobe lobectomy and mediastinal lymph node dissection. We experienced one case of large cell neuroendocrine carcinoma of lung and report it with reference.

• Journal of Chest Surgery
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• v.37 no.11
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• pp.955-958
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• 2004

Mucoepidermoid carcinoma is an uncommon lesion that accounts for approximately 1% of primary malignant bronchial gland tumors and less than 0.2% of all lung neoplasm. This tumor presents with symptoms of bronchial irritation or obstruction. Distant metastasis is uncommon, therefore complete surgical resection is the treatment of choice. The prognosis of tumor correlates with on the histologic grade of tumor. We experienced mucoepidermoid carcinoma in a 15 year-old girl with symptoms of cough and blood tinged sputum. The patient underwent successful removal of tumor by bilobectomy via explorothoracotomy after chest CT and bronchoscopic biopsy.