• 제목/요약/키워드: Lung Nodule

검색결과 191건 처리시간 0.033초

Silicone Granuloma Mimicking a Lymphatic Metastasis in a Lung Cancer Patient: A Case Report

  • Ju Sik Yun;Sang Yun Song;Kook Joo Na;Cho Hee Lee;Jae Beom Jeon
    • Journal of Chest Surgery
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    • 제56권1호
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    • pp.53-55
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    • 2023
  • Silicone granulomas are rare, benign lesions that may occur after breast augmentation. Occasionally, a careful differential diagnosis is necessary because lymphadenopathy or malignancy is suspected based on an imaging study. A 56-year-old woman who visited the hospital due to a lung nodule in the left upper lobe (LUL) underwent a staging work-up with the suspicion of lung cancer. Positron emission tomography/computed tomography and chest computed tomography revealed the LUL nodule and a lesion in the left internal mammary chain (IMC), suggesting lymphadenopathy. Diagnostic wedge resection was performed, followed by curative surgery. The final biopsy result confirmed that the LUL nodule was pathologic stage IB adenocarcinoma; unexpectedly, the lesion in the left IMC was a silicone granuloma.

비소세포폐암의 예후 결정에 있어 악성 흉수의 새로운 의의 (New Prognostic Significance of Malignant Pleural Effusion In Patients with Non-Small Cell Lung Cancer)

  • 김소영;박성훈;신정현;신성남;김동;이미경;이삼윤;최순호;김학렬;정은택;문성록;이강규;양세훈
    • 동의생리병리학회지
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    • 제23권3호
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    • pp.710-714
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    • 2009
  • Several studies showed that the survival rate of stage IIIB disease with malignant pleural effusion is worse than stage IIIB disease without malignant effusion. But, malignant pleural effusion was considered T4. To analyze changes the survival time for malignant pleural effusion, in the seventh revision of TNM classification for lung cancer. The records of all patients had to have either a histological or cytological diagnosis of non-small cell lung cancer (NSCLC), who were admitted to Wonkwang university hospital between January 2004 and December 2006 were reviewed retrospectively. We evaluated the survival time of 187 patients with advanced lung cancer with and without malignant pleural effusion. This included the pleural effusion or nodule M1 a (pleural dissemination, currently classified as T4), nodule(s) in the other lung M1 a (contralateral lung nodule, currently classified as M1), nodule(s) with the same lobe as the primary tumor T3 (currently classified as T4), other T4 factors T4 (T4 MO anyN), and extrathoracic sites of disease M1b (distant metastasis, currently classified M1). Among the 187 patients, T4anyNMO was 57 patients in the current TNM classification. In the next edition of the TNM classification, T4MOanyN-T4 (excluding same lobe nodules) was 12 patients, pleural dissemiantion-M1a was 45 patients, contralateral lung nodule(s)-M1a was 7 patients, and metastatic disease-M1b was 55 patients. We compared the survival time for these groups. Survival time was 11 months, 8 months, 11 months, and 4 months. The survival time of malignant pleural effusion was shorter than other T4 factors without pleural effusion. But, there was no remarkable difference in statistics due to small cases (p=0.23). We strongly suggest that malignant pleural effusion in advanced NSCLC will be categorized with metastatic disease.

폐의 림프상피종양 암종 1예 (A Case of Lymphoepithelioma-Like Carcinoma of the Lung)

  • 정치영;심상우;박창권;권건영;전영준
    • Tuberculosis and Respiratory Diseases
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    • 제71권5호
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    • pp.363-367
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    • 2011
  • Lymphoepithelioma-like carcinoma (LELC) of the lung is a very rare tumor. Originally described in the nasopharynx as lymphoepithelioma, this carcinoma has also been found in the stomach, esophagus, thymus, cervix, urinary bladder, skin, and salivary glands. Histologically, it is an undifferentiated carcinoma that has a syncytial appearance with tumor cells and is infiltrated by numerous lymphocytes, macrophages, and plasma cells. LELC of the lung occurs more commonly in Asians, particularly Chinese. Many studies have reported the association between Epstein-Barr virus (EBV) and LELC of the lung in Asian patients. A 45-year-old man had a solitary pulmonary nodule on a routine chest X-ray examination. As a malignant tumor was suspected, surgical resection was performed to establish the correct diagnosis. The pathology of the excised tumor demonstrated LELC of the lung. This is the first report of LELC of the lung in Korea.

A Lung Granuloma Case Possibly Associated with a Working Environment: A Case Report

  • Seehapanya, Sankom;Chaiear, Naesinee;Ratanawatkul, Pailin;Samerpitak, Kittipan;Intarawichian, Piyapharom;Wonglakorn, Lumyai
    • Safety and Health at Work
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    • 제12권2호
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    • pp.268-271
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    • 2021
  • Lung granulomas are uncommon in Thailand. The disease typically develops from an occupational environment and is mostly caused by infection. Herein is a case report of a female patient, aged 48, working as a nurse in an Accident and Emergency Department at a hospital. Eighteen years prior to admission the patient was diagnosed with myasthenia gravis and pulmonary tuberculosis. The chest X-ray and CT scans showed a solitary pulmonary nodule in the lower left lung. The patient received an open thoracotomy with a left lobectomy. Granulomatous and nonseptate hyphae were found in the pathology diagnosis. The patient was thus diagnosed as having a lung granuloma. The galactomannan antigen test was positive. The solitary pulmonary nodule-found from the use of a Polymerase Chain Reaction (PCR) test-was an Aspergillus spp. The fungus culture was collected from air samples. The air samples were collected by the impaction technique using a microbial air sampler. Three types of Aspergillus spp. were found as well as Penicillium spp. and Monilia sitophila. The Aspergillus spp. was a match for the patient's disease. The patient was diagnosed as having a lung granuloma possibly Aspergillus nodule which was caused by airborne Aspergillus spp. from the occupational environment.

원발성 폐 림프종 치험 1례 (Primary Malignant Lymphoma of Lung -A Case Report-)

  • 민경석
    • Journal of Chest Surgery
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    • 제27권10호
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    • pp.878-881
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    • 1994
  • Primary malignant lymphomas of the lung are rare and known often to be localized, solitary pulmonary lesions, in chest radiograph. Because they are highly treatable contrast to the other primary lung cancer, the distinction is important. A 35-year old man who was admitted for a solitary pulmonary nodule in the right middle lobe. Percutaneous needle aspiration disclosed diffuse, small cell lymphoma. Bone marrow biopsy showed no evidence of neoplastic lymphoid cell infiltration. There were a walnut sized mass involving right middle lobe with a small satellite nodule at 2cm distal to the right upper lobe bronchial orifice. The histopathology of the bilobectomized specimen showed diffuse, small cell, malignant, non-Hodgkin`s lymphoma. Immunologic subtype was defined as B-cell type.

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폐결절 검출 인공지능 소프트웨어의 임상적 활용에 관한 연구와 실제 사용 경험 (Studies and Real-World Experience Regarding the Clinical Application of Artificial Intelligence Software for Lung Nodule Detection)

  • 김정훈
    • 대한영상의학회지
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    • 제85권4호
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    • pp.705-713
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    • 2024
  • 본 종설에서는 모니터코퍼레이션(주)의 폐결절 검출을 위한 인공지능 기반 컴퓨터 보조 병변 검출(artificial intelligence-based computer-aided detection; 이하 AI-CAD) 소프트웨어 LuCAS-plus의 임상적 활용에 관한 연구와 실제 사용 경험을 기술하였다. AI-CAD의 폐암 검진에 대한 임상시험에서는 민감도와 특이도 측면에서 의료진의 판단과 비슷한 수준의 성능을 보였으며, 악성 종양의 폐전이 진단에 적용한 실증연구에서도 높은 검출 성능을 보여주었다. 또한 폐전이 진단에서 AI-CAD와 결절 매칭 알고리즘을 함께 사용할 경우 위양성 결과를 유의하게 감소시킬 수 있었다. 실제 판독에서도 AI-CAD를 적용함으로써 흉부 CT 판독의 정확성을 향상시키고, 판독에 드는 시간과 노력을 절약할 수 있었다. 종합하면, 폐결절 검출 AI-CAD는 폐암 검진과 악성 종양 경과 관찰 흉부 CT 판독에 유의한 도움을 줄 것으로 기대된다.

동공을 형성한 고립성 폐결절에서의 세기관지폐포암 (Bronchioloalveolar Cell Carcinoma in Solitary Pulmonary Nodule(SPN) with Cavitary Lesion)

  • 심재정;이진구;조재연;인광호;유세화;강경호
    • Tuberculosis and Respiratory Diseases
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    • 제41권4호
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    • pp.435-439
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    • 1994
  • Lung cancer is the most common fatal malignant lesion in both sexes. Detection of the solitary pulmonary nodule is important because surgical series up to a third of solitary pulmonary nodules are bronchogenic carcinoma. Bronchioloalveolar cell carcinoma is a rare primary lung cancer and surgery is treatment of choice in brochioloalveolar cell carcinoma. We experinced a case of bronchioloalveolar cell carcinoma in solitary pulmonary nodule with cavitary lesion in chest CT scan, which is an uncommon finding in brochioloalveolar cell carcinoma.

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Thoracoscopic Needle Aspiration Biopsy for a Centrally Located Solitary Pulmonary Nodule

  • Sung, Ho Kyung;Kim, Hyun Koo;Choi, Young Ho
    • Journal of Chest Surgery
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    • 제46권4호
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    • pp.316-318
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    • 2013
  • Thoracoscopic needle aspiration is a good alternative for a centrally-located solitary pulmonary nodule (SPN) suspected of being lung cancer without severe pleural adhesion. The authors report the technique of thoracoscopic needle aspiration biopsy in a SPN just in the medial aspect of the truncus anterior pulmonary artery and the right upper lobe bronchus.

복통과 췌장결절로 발현한 비소세포폐암 1예 (A Case of Non-small Cell Lung Cancer Presenting as Abdominal Pain and a Pancreatic Nodule)

  • 고경원;김현태;장상언;김여명;진민선;김상범;김혜련;김철현;이재철
    • Tuberculosis and Respiratory Diseases
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    • 제67권1호
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    • pp.42-46
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    • 2009
  • 저자들은 복통으로 내원한 환자에서 발견된 췌장 결절이 수술을 통하여 비소세포폐암의 단일성 췌장전이로 확진 되었던 드문 증례를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

Detection of Lung Nodule on Temporal Subtraction Images Based on Artificial Neural Network

  • Tokisa, Takumi;Miyake, Noriaki;Maeda, Shinya;Kim, Hyoung-Seop;Tan, Joo Kooi;Ishikawa, Seiji;Murakami, Seiichi;Aoki, Takatoshi
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제12권2호
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    • pp.137-142
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    • 2012
  • The temporal subtraction technique as one of computer aided diagnosis has been introduced in medical fields to enhance the interval changes such as formation of new lesions and changes in existing abnormalities on deference image. With the temporal subtraction technique radiologists can easily detect lung nodules on visual screening. Until now, two-dimensional temporal subtraction imaging technique has been introduced for the clinical test. We have developed new temporal subtraction method to remove the subtraction artifacts which is caused by mis-registration on temporal subtraction images of lungs on MDCT images. In this paper, we propose a new computer aided diagnosis scheme for automatic enhancing the lung nodules from the temporal subtraction of thoracic MDCT images. At first, the candidates regions included nodules are detected by the multiple threshold technique in terms of the pixel value on the temporal subtraction images. Then, a rule-base method and artificial neural networks is utilized to remove the false positives of nodule candidates which is obtained temporal subtraction images. We have applied our detection of lung nodules to 30 thoracic MDCT image sets including lung nodules. With the detection method, satisfactory experimental results are obtained. Some experimental results are shown with discussion.