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Transbronchial Biopsy (transbronchial + biopsy)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

The utility of transbronchial (Wang) fine needle aspiration in lung cancer diagnosis

CYTOPATHOLOGY, Issue 1 2001
M. T. Siddiqui
The utility of transbronchial (Wang) fine needle aspiration in lung cancer diagnosis We evaluated our experience with transbronchial fine needle aspiration (TBNA) in cancer diagnosis over a period of 1 year. A total of 51 aspirates were performed by specialist chest physicians in the presence of a cytopathologist who made on spot evaluation of Diff-Quik smears for adequacy and guided the aspirator for additional sampling if necessary. Two clusters of at least 10 malignant cells were required on the Diff-Quik smears to render an on the spot positive diagnosis of malignancy. Aspirates showing atypical cells or few malignant cells not fulfilling the above criteria were placed in a suspicious category and additional material was requested. The TBNA results were correlated with the transbronchial biopsy when available. [source]

Biopsy site selection for endobronchial ultrasound guide-sheath transbronchial biopsy of peripheral lung lesions

INTERNAL MEDICINE JOURNAL, Issue 2 2008
D. I. K. Fielding
Abstract Background: Choice of biopsy method for peripheral lung lesions is usually between CT-guided fine-needle aspiration biopsy (CT FNA) and bronchoscopy. Endobronchial ultrasound guide-sheath biopsy (EBUS GS) is a new method to improve the yield of bronchoscopy. Guidance on which lesions would be appropriate for either method is needed. The aim of the study was to compare the diagnostic yields and pneumothorax rate of EBUS GS and CT FNA in terms of the location of the lesion needing biopsy, in particular, whether the lesion is touching the pleura. Methods: Prospective series of EBUS GS were compared to retrospective review of CT FNA carried out simultaneously in a large teaching hospital. Results: For EBUS GS 140 cases were carried out with mean lesion size 29 mm. Overall diagnostic sensitivity was 66%. For lesions not touching visceral pleura it was 74% compared with 35% where it was on the pleura (P < 0.01). For CT FNA 121 cases were carried out with mean lesion size 37 mm. The overall diagnostic sensitivity was 64%. Rate of pneumothorax and ICC placement in EBUS GS was 1 and 0% and in CTFNA was 28 and 6%, with P < 0.001 for both. Conclusion: Lesion location, in particular, connection to the visceral pleura, can improve decision-making in referral for either CT FNA or EBUS GS to maximize diagnostic yield and minimize pneumothorax rate. [source]

Primary pulmonary coccidioidomycosis in China

RESPIROLOGY, Issue 4 2010
Fen LAN
ABSTRACT Coccidioidomycosis is a fungal infection endemic to south-west USA, north Mexico and parts of Central and South America. We report here a case of primary pulmonary coccidioidomycosis in a previously healthy 14-year-old boy in China, which is considered a non-endemic country. The patient had non-specific symptoms of pulmonary infection, including fever, non-productive cough and night sweats. Both spherules and endospores of Coccidioides immitis were seen histologically following transbronchial biopsy of a cavitary lesion. The patient was treated with amphotericin B and fluconazole. Follow up 6 months post discharge found that the patient made a good recovery. [source]

Pseudallescheria boydii or Aspergillus fumigatus in a lady with an unresolving lung infiltrate, and a literature review

RESPIROLOGY, Issue 3 2008
Sin-Man LAM
Abstract: A 53-year-old lady with blood-stained sputum and pleuritic pain had a lingular opacity on CXR which failed to resolve. A bronchial aspirate and transbronchial biopsy revealed features of bronchocentric granulomatosis with dichotomous branching hyphae suggestive of Aspergillus infection. However, subsequent fungal culture grew Pseudallescheria boydii. This case demonstrates the similarity of clinical and histological features caused by these two fungi. This appears to be the first reported case of pulmonary pseudallescheria with a bronchocentric granulomatous response. [source]

Receptor for Advanced Glycation End Products in Donor Lungs Is Associated with Primary Graft Dysfunction After Lung Transplantation

AMERICAN JOURNAL OF TRANSPLANTATION, Issue 4 2010
A. Pelaez
Development of primary graft dysfunction (PGD) is associated with poor outcomes after transplantation. We hypothesized that Receptor for Advanced Glycation End-products (RAGE) levels in donor lungs is associated with the development of PGD. Furthermore, we hypothesized that RAGE levels would be increased with PGD in recipients after transplantation. We measured RAGE in bronchoalveolar lavage fluid (BALf) from 25 donors and 34 recipients. RAGE was also detected in biopsies (transbronchial biopsy) from recipients with and without PGD. RAGE levels were significantly higher in donor lungs that subsequently developed sustained PGD versus transplanted lungs that did not display PGD. Donor RAGE level was a predictor of recipient PGD (odds ratio = 1.768 per 0.25 ng/mL increase in donor RAGE level). In addition, RAGE levels remained high for 14 days in those recipients that developed severe graft dysfunction. Recipients may be at higher risk for developing PGD if they receive transplanted organs that have higher levels of soluble RAGE prior to explantation. Moreover, the clinical and pathologic abnormalities associated with PGD posttransplantation are associated with increased RAGE expression. These findings also raise the possibility that targeting the RAGE signaling pathway could be a novel strategy for treatment and/or prevention of PGD. [source]