• 제목/요약/키워드: Needle biopsy

검색결과 473건 처리시간 0.03초

경피적 폐생검의 진단성적 및 합병증 (The Diagnostic Yield and Complications of Percutaneous Needle Aspiration Biopsy for the Intrathoracic Lesions)

  • 장승훈;김철현;고원중;유철규;김영환;한성구;심영수
    • Tuberculosis and Respiratory Diseases
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    • 제43권6호
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    • pp.916-924
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    • 1996
  • 연구배경: 경피적 폐생검은 흉부 병소의 진단을 얻기위해 흔히 이용되는 검사 방법으로써, 축적된 경험, 검칩의 개발, 영상 유도 방법의 개선으로 진단 성적이 높아지고 있으며, 기존의 논문들이 28 - 98%의 진단 성적을 보고하며 시술에 의한 합병증은 그 정도가 가벼워서 비교적 안전하게 시행될 수 있다고 알려져 있다. 저자들은 서울대학병원에서 1년 동안 시행된 경피적 폐생검 결과를 검토하여 그의 진단 성적과 합병증의 빈도와 정도를 조사하고 진단 성적에 영향을 미치는 요인들을 평가하고자 본 연구를 시작하였다. 방법: 1994 년 1월부터 1994년 12월까지, 흉부병소를 가진 236명의 환자에게 시행된 287 회의 경피적 폐생검 결과를 검토하여 양성 및 악성 질환에 대한 진단 성적과 합병증의 발생 빈도를 조사하였다. 병소는 21- 23 G Chiba needle로 흡인하였고, 필요시 19 - 20 G Biopsy gun으로 생검을 실시 하여 미생물학적 검사, 세포진 검사, 병리 조직학적 검사를 시행하였다. 그 결과 및 합병증의 발생 빈도는 병록지만을 참고하여 산출되었다. 병변의 형태와 크기에 따른 진단 성적은 chi square 방법으로 통계 처리하여 비교하였다(P<0.05). 결과: 병변의 위치는 우상엽 26.3%, 우중엽 6.4%, 우하엽 21.2%, 좌상엽 16.8%, 좌하엽 10.6%, 2엽 이상의 부위에 병변이 있었던 경우가 17.4%, 종격동 1.3% 였다. 병변의 형태는 경화성 병변이 19.9%, 결절 또는 종괴성 병변이 80.1% 였다. 236명 중 양성 질환자는 74명, 악성질환자는 142명, 경피적 폐생검을 포함한 어떤 검사로도 진단이 밝혀지지 않은 환자는 22명 이었고, 2명은 폐암과 폐결핵을 같이 가지고 있었다. 236 명을 대상으로 총 287 회의 경피적 폐생검이 시행되었는데, 이것으로 확진된 경우가 양성 질환자의 경우 46명으로 62.2%, 악성 질환자의 경우 117명으로 82.4%의 진단 성적을 보였다. 경피적 폐생검을 1차로 시행하여 진단에 이르지 못한 경우 2차, 3차 재 시술 함으로써 양성 질환의 경우 44.6%, 60.8%, 62.2%로, 악성 질환의 경우 73.9%, 8 1.7%, 82.4%로 진단 성적을 높일 수 있었다. 악성 질환자 43 명과 양성 질환자 9명에서 개흉술을 실시하였는데 개흉술과 경피적 폐생검의 병리학적 검사 결과가 일치하였던 경우는 악성과 양성에서 각각 25 명과 4명 으로 58.1% 와 44.4 %의 일치율을 보였다. 또한 약성 질환자 4명과 양성 질환자 2명은 개흉술 후 악성과 양성의 진단이 바뀌었다. 287례의 시행 중 합병증은 각혈 3 례, 경미한 혈담 55 례, 기흉 36례, 발열 3례로 빈도는 각각 1.0%, 19.2%, 12.5%, 1.0 % 였다. 합병증 발생시 각혈과 혈당은 모두 치료를 요하지 않았고, 기흉은 8례에서 흉관 또는 픽테일 카테터를 삽입하였으며, 발열은 모두 48 시간 내에 자연 소실되었다. 병변의 형태와 크기에 따른 진단 성적의 차이는 없었다. 결론: 경피적 폐생검은 진단 성적이 비교적 높고 합병증의 정도가 낮아 흉부 영소의 진단에 유용하지만 병리 조직학적 진단의 정확도는 개선이 필요하다고 생각된다.

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아급성 괴사성 림프절염의 임상적 고찰 (Clinical Characteristics of Subacute Necrotizing Lymphadenitis)

  • 박찬흠;김희동;박준영;조형주;전진형;박윤규;노영수
    • 대한두경부종양학회지
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    • 제15권2호
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    • pp.217-221
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    • 1999
  • Background and Objectives: Subacute necrotizing lymphadenitis or Kikuchi's disease has now become recognized in many parts of the world as a well-defined clinicopathologic entity. It typically affects cervical lymph nodes of young women, and subsides spontaneously within a few months without recurrences. The purpose of this study is to report the clinicopathologic finding, radiologic finding and many laboratory tests to elaborate the criteria that are useful in distinguishing this entity from inflammatory disease, granulomatous disease, lymphoma, malignant disease. Material and Methods: Authors evaluated 22 patients, who were diagnosed as subacute necrotizing lymphadenitis on excisional biopsy or fine needle aspiration cytology with retrospective chart review. Results: The patient population consisted of 21 women and 1 men. The mean age was 25 years old(range 17 to 42 years). All patient had palpable neck mass and associated fever, headache, weight loss, otalgia, diarrhea, night sweating. and associated disorder is dermatitis, hepatitis B, SLE, Hashimoto's thyroiditis, albinism et al. The multiple bilateral involvement of cervical lymph node was 20 cases(91%) and multiple unilateral 18 cases(82%), multiple bilateral 2 cases(9%). Solitary involvement was 2 cases(9%), mean size of involved lymph node was 2.0cm. In laboratory tests, leukopenia 17 cases(72%), elevated ESR 12 cases(54%), elevated GOT, GPT 3 cases(13%). In CT finding, lymph nodes enhanced in homogeneous fashion, and there was no evidence of central necrosis. Conclusion: Subacute necrotizing lymphadenitis, Kikuchi's disease may be easily confused clinically, pathologically, radiologically with malignant lymphoma, inflammatory disease, granulomatous disease. We should consider open biopsy of lymph node in the patient which had unilateral multiple cervical lymph node and in laboratory tests, were leukopenia, elevated ESR, especially in young women. otherwise, result of fine needle aspiration biopsy is nonspecific, excisional biopsy is recommended in order to differentiate other disease.

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Tissue Adequacy and Safety of Percutaneous Transthoracic Needle Biopsy for Molecular Analysis in Non-Small Cell Lung Cancer: A Systematic Review and Meta-analysis

  • Bo Da Nam;Soon Ho Yoon;Hyunsook Hong;Jung Hwa Hwang;Jin Mo Goo;Suyeon Park
    • Korean Journal of Radiology
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    • 제22권12호
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    • pp.2082-2093
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    • 2021
  • Objective: We conducted a systematic review and meta-analysis of the tissue adequacy and complication rates of percutaneous transthoracic needle biopsy (PTNB) for molecular analysis in patients with non-small cell lung cancer (NSCLC). Materials and Methods: We performed a literature search of the OVID-MEDLINE and Embase databases to identify original studies on the tissue adequacy and complication rates of PTNB for molecular analysis in patients with NSCLC published between January 2005 and January 2020. Inverse variance and random-effects models were used to evaluate and acquire meta-analytic estimates of the outcomes. To explore heterogeneity across the studies, univariable and multivariable metaregression analyses were performed. Results: A total of 21 studies with 2232 biopsies (initial biopsy, 8 studies; rebiopsy after therapy, 13 studies) were included. The pooled rates of tissue adequacy and complications were 89.3% (95% confidence interval [CI]: 85.6%-92.6%; I2 = 0.81) and 17.3% (95% CI: 12.1%-23.1%; I2 = 0.89), respectively. These rates were 93.5% and 22.2% for the initial biopsies and 86.2% and 16.8% for the rebiopsies, respectively. Severe complications, including pneumothorax requiring chest tube placement and massive hemoptysis, occurred in 0.7% of the cases (95% CI: 0%-2.2%; I2 = 0.67). Multivariable meta-regression analysis showed that the tissue adequacy rate was not significantly lower in studies on rebiopsies (p = 0.058). The complication rate was significantly higher in studies that preferentially included older adults (p = 0.001). Conclusion: PTNB demonstrated an average tissue adequacy rate of 89.3% for molecular analysis in patients with NSCLC, with a complication rate of 17.3%. PTNB is a generally safe and effective diagnostic procedure for obtaining tissue samples for molecular analysis in NSCLC. Rebiopsy may be performed actively with an acceptable risk of complications if clinically required.

Ultrasound-Guided Percutaneous Biopsy With Needle Track Plugging in Patients With Focal Liver Lesions on an Outpatient Basis: A Randomized Controlled Trial

  • Ja Kyung Yoon;Choong-kun Lee;Hongjeong Yoon;Hye Jin Choi;Seung-seob Kim
    • Korean Journal of Radiology
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    • 제25권10호
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    • pp.902-912
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    • 2024
  • Objective: The increasing utilization of various molecular tests for diagnosing and selecting treatments for patients with malignancies has led to a rising trend in both the frequency of biopsies and the required tissue volume. We aimed to compare the safety of outpatient ultrasound (US)-guided percutaneous liver biopsy (PLB) between the coaxial method with needle track plugging (NTP) and the conventional method. Materials and Methods: This single-center, prospective, randomized controlled study was conducted from October 2022 to May 2023. Patients referred for US-guided PLB with target liver lesions measuring ≥1 cm and requiring ≥3 tissue cores were enrolled. Patients with severe coagulopathy or a substantial volume of ascites were excluded. Patients were randomly assigned to undergo PLB using either the coaxial method with NTP or the conventional method, in a 1:1 ratio, and were subsequently discharged after 2 hours. The primary endpoint was the presence of a patent track sign, defined as a linear color flow along the biopsy track on Doppler US, as an indication of bleeding. The secondary endpoints included clinically significant bleeding, delayed bleeding after discharge, and diagnostic yield. The incidences of these endpoints were compared between the two methods. Results: A total of 107 patients completed the study protocol. Patent track signs were observed significantly less frequently in the coaxial method with NTP group than in the conventional method group: 16.7% (9/54) vs. 35.8% (19/53; P = 0.042). Clinically significant bleeding and delayed bleeding did not occur in either group, and both methods achieved a high diagnostic yield: 94.4% (51/54) vs. 98.1% (52/53; P = 0.624). Conclusion: Compared with the conventional method, the coaxial method with NTP may potentially be safer, with a reduced risk of overall bleeding complications after PLB when retrieving ≥3 tissue cores. The coaxial method with NTP could be considered a viable option for acquiring multiple liver tissues on an outpatient basis.

간 조직내의 Retinoic Acid 검출 및 측정 방법 (Detection and Measurement of Retinoic Acid in Human Liver Samples)

  • 김초일
    • Journal of Nutrition and Health
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    • 제24권3호
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    • pp.199-205
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    • 1991
  • 비타민 A의 활성 대사물인 비타민 A arid(retinoir acid, Rh)를 사람의 간 조직내에서 처음으로 검출하고, 측정하는 방법을 고안하였다. Reverse phase HPLC에 gradient elution을 사용하는 이 방법은 Multiwavelength 검출법을 이용하여 RA, 비타민 A, 비타민 E 및 카로티노이드를 모두 약 30mg정도의 시료로부터 검출할 수 있었다. HPLC 분석에 소요되는 시간은 시료당 20분으로 상당히 신속하며 또 예민하다. 간 조직내의 총비타민 A량에 대한 Rh의 비율은 비타민 A의 축적량에 관계없이 일정한 편으로 약 $2.4\pm0.2%로$ 나타났다. RA의 간 조직내의 검출은 RA가 비타민 A의 체내 대사산물임을 다시 한번 확인시켰으며, 그 함량에 대한 정보는 총비타민 A량과 함께 비타민 A 영양 상태 판정에 보다 좋은 지표가 될 것이다. 특히 간 조직의 needle biopsy가 필요한 질병 상태의 경우, 비타민 A의 기능적 영양 상태판정을 가능하게 하여 질병의 진단 및 처치에 도움이 되리라 사료된다.

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수술후 10년 이상 장기 생존 담도폐쇄증 환장에서의 영양상태 및 임상적 특성에 관한 분석 (Clinical & Nutritional Assessments of Long-term Survivors of Biliary Atresia)

  • 전용순;김우기
    • Advances in pediatric surgery
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    • 제4권2호
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    • pp.125-130
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    • 1998
  • To assess the clinical and nutritional status of long-term survivors of biliary atresia, history taking, medical record review, physical examination (height, weight, MAC, TSF), blood tests (LFT, prothrombin time, platelet count, prealbumin, calcium) and liver needle biopsy were performed in 12 patients in whom Kasai procedure were performed more than 10 years ago at Department of Pediatric Surgery in Seoul National University Hospital. None were below the 5th percentile in height and weight. TSF was above the 75th percentile in all patients and showed good subcutaneous fat deposition. MAC was above the 5th percentile in all patients. Serum prealbumin level was abnormal in 2 patients with abnormal liver function and revealed visceral protein malnutrition. Serum calcium level was decreased below normal range in 4 patients with abnormal liver function. One patient had mild ascites. Five patients had abnormal liver function and 7 patients showed clinical manifestation of portal hypertension. Liver needle biopsy was performed in 5 patients and no cirrhotic change was observed. Although some patients who have survived for more than 10 years after Kasai procedure developed protein malnutrition and vitamin deficiencies, growth and development and nutritional status were generally satisfactory. Five patients(42%) showed normal liver function and no portal hypertension. In conclusion, Kasai procedure is satisfactory as a primary treatment in biliary atresia but significant portion of long-term survivors had abnormal liver function and portal hypertension. Continuous and careful follow-up is necessary to determine when liver transplantation may be indicated.

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건강인에서 발생한 폐효모균증 1예 (A Case of Pulmonary Cryptococcosis in Healthy Person)

  • 류수현;임종섭;유대성;신원혁;류인열;윤성준;이지현;황순철
    • Tuberculosis and Respiratory Diseases
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    • 제43권1호
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    • pp.102-107
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    • 1996
  • 본 환자는 평소 건강하던 38세 남자환자로 기침의 증상과 X-선상 우측폐에 경화소견을 보인 예였다. CT 유도하 세침 흡인 생검법에 의한 세균학적검사와 조직 검사로 C. neoformans에 의한 폐효모균증으로 진단하여, 6주간 fluconazole 사용후 증상은 소실되었고, X-선상 많이 호전되어 현재 추적 관찰중에 있다.

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Expression of Pituitary Tumor Transforming Gene 1 is an Independent Factor of Poor Prognosis in Localized or Locally Advanced Prostate Cancer Cases Receiving Hormone Therapy

  • Cao, Xi-Liang;Gao, Jiang-Ping;Wang, Wei;Xu, Yong;Shi, Huai-Yin;Zhang, Xu
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권7호
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    • pp.3083-3088
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    • 2012
  • We investigated the prognostic value of pituitary tumor transforming gene 1 (PTTG1) expression according to clinicopathological features among localized or locally advanced prostate cancer cases receiving hormone therapy. A retrospective study involved 64 patients receiving combined androgen blockade treatment was performed. PTTG1 expression was determined by immunohistochemical staining using initial needle biopsy specimens for diagnosis. Associations of PTTG1 with various clinicopathological features and disease-free survival were examined via uni- and multivariate analyses. No association between PTTG1 expression and clinical T stage, Gleason score, pretreatment PSA levels, risk groups was found (p =0.682, 0.184, 0.487, 0.571, respectively). Univariate analysis revealed that increased PTTG1 expression, T3 stage and high risk group were associated with increased risk of disease progression (p =0.000, 0.042, and 0.001), and high PSA level had a tendency to predict disease progression (p =0.056). Cox hazard ratio analysis showed that PTTG1 low expression (p =0.002), PTTG1 high expression (p =0.000) and high risk group (p =0.0147) were significantly related to decreased disease-free survival. In conclusion, PTTG1 expression determined by immunohistochemical staining in needle biopsy specimens for diagnosis is a negative prognostic factor for progression in localized or locally advanced prostate cancer receiving hormone therapy.

Utility of Digital Rectal Examination, Serum Prostate Specific Antigen, and Transrectal Ultrasound in the Detection of Prostate Cancer: A Developing Country Perspective

  • Kash, Deep Par;Lal, Murli;Hashmi, Altaf Hussain;Mubarak, Muhammed
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권7호
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    • pp.3087-3091
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    • 2014
  • Purpose: To determine the utility of digital rectal examination (DRE), serum total prostate specific antigen (tPSA) estimation, and transrectal ultrasound (TRUS) for the detection of prostate cancer (PCa) in men with lower urinary tract symptoms (LUTS). Materials and Methods: All patients with abnormal DRE, TRUS, or serum tPSA >4ng/ml, in any combination, underwent TRUS-guided needle biopsy. Eight cores of prostatic tissue were obtained from different areas of the peripheral prostate and examined histopathologically for the nature of the pathology. Results: PCa was detected in 151 (50.3%) patients, remaining 149 (49.7%) showed benign changes with or without active prostatitis. PCa was detected in 13 (56.5%), 9 (19.1%), 26 (28.3%), and 103 (74.6%) of patients with tPSA <4 ng/ml, 4-10 ng/ml, 10-20 ng/ml and >20 ng/ml respectively. Only 13 patients with PCa had abnormal DRE and TRUS with serum PSA <4 ng/ml. The detection rate was highest in patients with tPSA >20 ng/ml. The association between tPSA level and cancer detection was statistically significant (p<0.01). Among 209 patients with abnormal DRE and raised serum PSA, PCa was detected in 128 (61.2%). Conclusions: The incidence of PCa increases with increasing serum level of tPSA. The overall screening and detection rate can be further improved by using DRE, TRUS and TRUS-guided prostate needle biopsies.

BRAFV600E Mutation Analysis in Fine Needle Aspiration Biopsy Cytology and Formalin Fixed Paraffin Embedding Block of the Thyroid

  • Han, Kyung Hee;Park, Won Young;Lee, Young Nam
    • 대한임상검사과학회지
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    • 제45권2호
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    • pp.66-72
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    • 2013
  • Fine Needle Aspiration Biopsy Cytology (FNABC), which is known as the most accurate and cost-effective method for diagnosis of the thyroid nodule, may still result in indeterminate cases that are cellular paucity and show minor nuclear atypia. However, most cases are associated with suspicion of papillary thyroid carcinoma (PTC). A B-type Raf kinase (BRAF) mutation was found in about half of PTCs which is currently helping us to differentiate malignancies from benign lesions. Cases studied included 46 histological, confirmed PTC cases. FNABC 102 cell paucity and 74 atypia benign cases were previously diagnosed as suspicious of PTC using cytologic examination. These cases were analyzed for BRAF mutation by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) with a new restriction enzyme. In this study, the sensitivity and specificity were calculated and, BRAF mutation was detected by means of a histological method in 23 of 46 cases of PTC and no mutation was found in 22 cases. However, one case was not detected. In using FNABC, BRAF mutation was detected in 6 of 102 cases in cell paucity and in 11 of 74 cases in the atypia. Two cases were not detected in the atypia. The sensitivity and specificity of PCR-RFLP in FNABC were 60% and 97.4% respectively. Assessment of Formalin Fixed Paraffin Embedding (FFPE) block demonstrated similarly a 51.1% positive and 48.9% negative in PTC. Evaluation of BRAF mutation revealed high specificity and low sensitivity in using FNABC method. This study suggests that BRAF mutation analysis should be useful for the clinical diagnosis of PTC in FNABC with cytological findings suspicious for PTC.

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