• 제목/요약/키워드: acid fast bacilli stain

검색결과 25건 처리시간 0.026초

PCR-RFLP에 의한 대중목욕탕 내 Nontuberculous Mycobacteria의 동정 (Identification of Nontuberculous Mycobacteria Existing in Public Bathroom Water by PCR-Restriction Fragment Length Polymorphism)

  • 최승구;송운흥;강치환;조규봉;이재상;이장호;김성일;지수일
    • 대한임상검사과학회지
    • /
    • 제40권1호
    • /
    • pp.1-5
    • /
    • 2008
  • Thirty two of bathroom water samples from public bathroom in Seoul areas were examined using acid-fast staining, Lowenstein-Jensen (L-J) medium culture and PCR-restriction fragment length polymorphism (PCR-RFLP). In 6.25% (2/32) bathroom water samples, acid-fast bacilli were detected by AFB stain, and in 21.9% (7/32) bathroom water samples, acid fast bacilli grew on L-J media. Of them, six acid-fast bacilli were identified as Mycobacterium avium, and the other AFB as Mycobacterium szulgai by PCR-RFLP. These results are suggested that accidental nontuberculosis mycobacterial infection to a weakness person will be possible in public area.

  • PDF

족부에 발생한 방선균증 - 1예 보고 - (Actinomycosis of the Foot - A Case report -)

  • 김종관;김정환;홍정기;권오준
    • 대한족부족관절학회지
    • /
    • 제4권1호
    • /
    • pp.30-34
    • /
    • 2000
  • The Actinomyces organism is inherent in human as normal flora found in the mouth. Outside of the mouth, this organism can cause actinomycosis. Involvement of the extremity is very rare and atypical. The authors have experienced a case of actinomycosis of the foot and report with the literature review. Histopathologic finding shows multiple sulfur granules. In histochemical stains, periodic acid-Schiff, Gomori methionine silver, and gram stain were positive, and acid fast bacilli stain was negative. The patient was treated with surgical excision and antibiotic administration with Ampicillin for 6 months.

  • PDF

객담을 이용한 Mycobacteria의 검출과 중합효소 연쇄반응의 민감성 비교 (Identification of Mycobacteria Using Polymerase Chain Reaction and Sputum Sample)

  • 장형석
    • 대한임상검사과학회지
    • /
    • 제47권2호
    • /
    • pp.83-89
    • /
    • 2015
  • 결핵(Mycobacterium tuberculosis, MTB) 감염은 아직까지 전 세계에서 높은 유병률과 사망의 주요 원인이 되고 있으며 비정형 결핵(nontuberculous mycobacteria, NTM)은 최근 후천성 면역결핍증(AIDS)이나, 종양, 이식 등으로 면역력이 저하된 환자들의 임상 검체에서 분리빈도가 증가함에 따라 분리 균주의 임상적 의의가 중요시 되고 있다. 이에 항산균 염색을 이용한 객담 도말검사는 결핵균과 비정형 결핵균을 구별할 수 없다는 제한점이 있고, 균 분리배양검사는 시간이 오래 걸린다는 단점이 있어, 본 연구에서는 이러한 제한점을 가진 기존의 검사법을 대신하여 분자생물학적 방법인 중합효소 연쇄반응(polymerase chain reaction, PCR)을 이용하여 균 분리배양 검사와 비교하여 보았다. Mycobacteria를 동정하는데 항산균 염색과 3% ogawa 배지를 이용하였고, 균 분리배양 후 M. tuberculosis를 확인하기 위해서 niacin test를 실시한 결과 집락의 DNA를 추출하여 PCR후 동정된 M. tuberculosis와 niacin 양성이 일치함을 확인할 수 있었다. 또, 이 실험에서 항산성균 염색이 2+ 이상인 객담검체와 집락검체 각각에서 DNA를 추출하여 결핵균을 동정하는 방법으로 M. tuberculosis complex에 특징적으로 존재하는 insertion sequence (IS) 6110의 특정부위인 547 bp와 285 bp 부분을 증폭한 two-tube nested polymerase chain reaction을 시행하였고, 비정형 결핵균 동정법으로는 mycobacteria에 공통적으로 존재하는 rpoB 유전자 중 일부인 360 bp 부분을 증폭한 후, 제한효소 Msp I을 첨가 PCR-restriction fragment length polymorphism (RFLP)을 시행하였으며, 결핵균과 비정형 결핵균 모두 동정율에 거의 차이가 없었다. 1+인 경우는 객담검체에서 PCR한 결과가 31.2%에서 집락검체의 PCR한 결과 93.7%까지 결핵균과 비정형결핵균의 동정율이 높아졌고, trace인 경우 객담검체에서 PCR 결과가 2%에서 집락검체에서 PCR한 결과가 97.9%까지 결핵균과 비정형 결핵균의 동정율을 높일 수 있었다. 이 실험에서 항산성균 염색 1+이하 일때 객담검체와 집락검체로 PCR을 실시하면 결핵균과 비정형 결핵균의 동정율에 차이가 있고, 배양만으로는 결핵균의 동정은 가능하지만 비정형 결핵균의 동정이 가능하지 않으므로 배양검사와 PCR 검사 모두를 병행하므로써 보다 신속하고 정확한 검사결과를 내는데 도움 될 것이다.

결핵균 자동염색기의 개발 및 평가 (Development and Evaluation of an Automated Stainer for Mycobacterium Tuberculosis)

  • 김수찬;강승일;김승철;황정호;김성녕;김영;송선대;조상래;김덕원
    • 대한의용생체공학회:의공학회지
    • /
    • 제23권3호
    • /
    • pp.235-241
    • /
    • 2002
  • 결핵을 진단하는 방법 중에서 신속하고 비교적 비용이 적게드는 방법은 객담을 통한 결핵균 도말 검사이다. 결핵균 도말 검사는 슬라이드에 도말한 환자의 객담을 가온 과정을 통해 고착시키고. acid-fast 염색방법을 통해 염색시킨 후 현미경으로 결핵균을 관찰하는 것이다. Acid-fast 염색방법은 크게 hot staining과 cold staining 방법 두 가지가 있으며, 우리나라에서는 염색 결과가 선명한 hot staining 방법인 Ziehl-Neelsen 방법을 주로 이용한다. 그러나, 기존의 결핵균 자동염색기는 가온 기능이 없어 환자의 객담을 슬라이드에 검사자가 고착을 시켜야 하고. 선명도도 낮은 문제점을 가지고 있다. 본 연구에서는 검사자의 인력 절감과 검사자 개인의 염색 능력에 따른 염색 정도의 변화를 줄이기 위해 가온이 가능한 결핵균 자동염색기를 개발하였다 개발된 염색기는 객담의 고착에서 염색 그리고 건조가지 전 과정이 자동으로 이루어진다. 염색 시간은 5개의 슬라이드를 고품질로 염색할 경우 21분이 소요되었다. 성능 평가를 위해 총 91개 객담을 대상으로 자동과 수동염색을 시행하여 일치율을 비교해 본 결과 75%로 통계적으로 유의한 차이를 보이지 않았다 (P>0.05).

Tuberculosis-Infected Giant Bulla Treated by Percutaneous Drainage Followed by Obliteration of the Pulmonary Cavity Using Talc: Case Report

  • Heo, Jeongwon;Bak, So Hyeon;Ryu, Se Min;Hong, Yoonki
    • Journal of Chest Surgery
    • /
    • 제54권5호
    • /
    • pp.408-411
    • /
    • 2021
  • Tuberculosis (TB)-infected giant bullae are rare. A 55-year-old man was referred when an infected bulla did not respond to empirical treatment. Computed tomography showed a giant bulla in the right upper lobe with an air-fluid level and surrounding infiltrate. Sputum culture, acid-fast bacilli (AFB) stain, and polymerase chain reaction (PCR) for TB were negative. Percutaneous drainage of the bullous fluid was performed. AFB stain and PCR were positive in the drained fluid. The patient was given anti-TB drugs and later underwent obliteration of the pulmonary cavity using talc. To summarize, we report a patient with a TB-infected giant bulla that was treated successfully with anti-TB drugs and obliteration of the pulmonary cavity using talc.

Mycobacterium abscessus Skin Infection Associated with Shaving Activity in a 75-year-old Man

  • Choi, Hoon;Kim, Yong Il;Na, Chan Ho;Kim, Min Sung;Shin, Bong Seok
    • Annals of Geriatric Medicine and Research
    • /
    • 제22권4호
    • /
    • pp.204-207
    • /
    • 2018
  • Mycobacterium abscessus comprises rapidly growing mycobacteria, and the clinical manifestations of M. abscessus skin infection include papule, nodule, ulcer, scar and mixed form. The cutaneous infections have been reported due to minor trauma, cosmetic therapy, acupuncture and disseminated infection. A 75-year-old man presented with pruritic diffuse various sized erythematous papuloplaques and pustules on the neck and chest for 2 months. The cutaneous lesions were spread around the wound of the shaving on the neck. The histopathologic findings were consistent with abscess showing infiltrations of neutrophils and lymphocytes in the dermis and negative findings were observed on immunohistochemical stain including acid-fast bacilli stain. One month later, mycobacterial culture result showed positive findings, and the pathogen was identified by reversetranscriptase polymerase chain reaction with hybridization. The patient was treated with combination of clarithromycin and ethambutol for 5 months and there is no evidence of recurrence after 6 months of follow-up. Herein, we report a case of M. abscessus cutaneous infection through minor trauma caused by shaving in the elderly.

Studies on the Histo Pathology of Avian Tuberculosis

  • Lee, Ki Poong
    • 대한수의학회지
    • /
    • 제1권1호
    • /
    • pp.72.2-72.2
    • /
    • 1961
  • Since April, 1957, 200 White Leghorn and 100 Newhampshire had been brought to the poultry farm of our college from Songwhan National Breeding Station. The looses due to avian tuberculosis were 67 chickens by June, 1959. Thirteen of them were examined histopathologically. Grayish white tuberculous nodules varying in size were recognized in the liver, spleen, bone marrow, and intestine of all affected birds. The heart rind testis were involved in each case, and pulmonary tuberculosis which, unlike in mammals, was kown to be rarely encountered in birds was observed in two cases. One case showed amyloid like degeneration in hepatic cell cords of the liver, glomerular tufts and collecting ducts of the kidney. Lesions in the spleen presented typical Sago spleen. Sections from the liver, spleen, intestine, and lungs were stained by Ziel-Neelsen stain. Acid Fast stained bacilli were found embeded in the cytoplasm of epithlioid cells and foreign-body giant cells.

  • PDF

Performance of Quantitative Real-Time PCR for Detection of Tuberculosis in Granulomatous Lymphadenitis Using Formalin-Fixed Paraffin-Embedded Tissue

  • Munkhdelger, Jijgee;Mia-Jan, Khalilullah;Lee, Dongsup;Park, Sangjung;Kim, Sunghyun;Choi, Yeonim;Wang, Hye-Young;Jeon, Bo-Young;Lee, Hyeyoung;Park, Kwang Hwa
    • 대한의생명과학회지
    • /
    • 제19권2호
    • /
    • pp.153-157
    • /
    • 2013
  • Although culture is the gold standard method to identify mycobacteria, its use in tuberculous lymphadenitis (TBL) is limited due to formalin fixation of the submitted specimens. We evaluated the performance of quantitative real-time PCR (q-PCR) for Mycobacterium Tuberculosis (MTB) in granulomatous lymphadenitis using formalin-fixed paraffin-embedded (FFPE) tissues. From 2000 to 2010, a total number of 117 cases of lymph node samples with granulomatous inflammation which were surgically removed and fixed in formalin were studied. Hematoxylin & Eosin (H&E) and Ziehl-Neelsen-stained (ZN) slides were reviewed. qPCR using Real TB-Taq$^{(R)}$ was performed for all cases to identify Mycobacterium tuberculosis. Thirteen non-tuberculous lymphadenopathy cases were used as negative control. Cervical lymph nodes were more frequently affected (60%, 70/117) than other sites. ZN stain for acid fast bacilli was positive in 19 (16.24%) cases. qPCR for tuberculosis was positive in 92 (78.63%) cases. Caseous necrosis was found in 103 (88.03%) cases. While the ZN stain and qPCR were both negative in all control cases, the qPCR showed a significantly higher positive rate (78.63% vs. 16.24%) compared to ZN stain in histologically diagnosed TBL. Quantitative real-time PCR proves to be more sensitive than ZN stain for diagnosis of tuberculous lymphadenitis.

Wegener's Granulomatosis 폐병변의 세침흡인 세포학적 소견 - 1예 보고 - (Fine Needle Aspiration Cytology of Pulmonary Lesions in Wegener's Granulomatosis - A Case Report -)

  • 서은주;권희정;민기옥
    • 대한세포병리학회지
    • /
    • 제9권1호
    • /
    • pp.85-88
    • /
    • 1998
  • We described the findings of fine needle aspiration cytology of the lung from a patient with Wegener's granulomatosis. Early diagnosis and prompt treatment of the patients with Wegener's granulomatosis is essential for a better prognosis. However, the variety of clinical presentations and nonspecific radiologic infiltrates of Wegener's granulomatosis frequently make the diagnosis difficult. Although an open lung biopsy is required for a firm diagnosis, fine needle aspiration cytology & biopsy preparation can also provide an adequate tissue sample, when the findings of fine needle aspiration are considered with clinical manifestations and ANCA value in the serum. The cytologic smears showed scattered necrotic tissue fragments entrapping many neutrophils and occasional epithelioid cells. Multinucleated giant cells were infrequently observed. Ziehl-Neelsen stain for acid fast bacilli was negative. All the cytologic features recapitulated the histopathologic findings of purulent and necrotizing granulomatous inflammation seen in Wegener's granulomatosis.

  • PDF

폐외결핵 조직에서의 항산균 검출 (Isolation of Acid-fast Bacilli from Tissues of Extrapulmonay Tuberculosis)

  • 노진우;최희진;김형일;정진홍;이관호;이현우;이삼범
    • Journal of Yeungnam Medical Science
    • /
    • 제11권2호
    • /
    • pp.240-247
    • /
    • 1994
  • 만성 육아성 염증으로 진단된 폐외결핵의 조직에서 항산균 도말검사상 항산균의 검출빈도를 조사해 보고자 조직검사상 폐외결핵으로 진단된286례를 대상으로 조직에서의 항산균 검출빈도와 폐외결핵의 임상적 고찰을 하여 다음과 같은 결과를 얻었다. 1) 폐외결핵의 평균연령은 37.3세였고 성별에 따른 빈도의 차이는 임파절 결핵은 여자에서 2.3배 더 높았고 유방을 제외한 그 외의 폐외결핵은 남자에서 호발하였다. 2) 폐외결핵의 부위별 빈도는 늑막이 103례(36.0%)로 가장 높았고 임파절 87례(30.4%), 소화기 27례(9.4%), 피부 및 연조직 23례(8.0%), 뼈 19례(6.6%), 비뇨기계 13례(4.6%), 인후두 9례(3.2%), 유방이 5례(1.8%)였다. 3) 폐외결핵의 조직에서 항산균 검출은 총 286례 중 87례에서 검출되어 평균 검출빈도는 30.4%였으며 각 장기별 항산균 검출빈도는 유방이 5례 중3례 (60.0%), 임파절이 87례 중 35례(40.2%)로 비교적 높았고 인후두는 9례 중 3례(33.3%), 비뇨기계는 13례 중 4례(30.8%), 뼈는 19례 중 5례(26.3%), 소화기계는 27례 중 7례(25.9%), 늑막은 103례 중 26례(25.2), 피부 및 연조직에서는 23례 중 4례(17.4%)였다. 4) 폐결핵과 폐외결핵과의 관계는 폐외결핵 286례 중 85례(29.7%)에서 흉부 X-선상 폐결핵병변이 있었고, 장기별로는 인후두 결핵이 9례 중 6례(66.6%), 소화기 결핵이 27례 중 14례(51.9%)에서 폐결핵과 동반되어 다른 부위의 폐외결핵보다 폐결핵 동반율이 더 높았다.

  • PDF