Multiple brushings with immediate Riu's stain via flexible fibreoptic bronchoscopy without fluoroscopic guidance in the diagnosis of peripheral pulmonary tumours.

Abstract

(2)) than the nine benign lesions (5 (4)).Conclusions -This technique provides a high diagnostic yield, avoids the need for fluoroscopy, and is probably safer than percutaneous biopsy.

Cytology-based treatment decision in primary lung cancer: Is it accurate enough?

“…This has been previously reported [6,7,10], mainly in the absence of endoluminal lesions, or when only infiltrative or compressive mucosal changes are seen endoscopically [27]. False positive cytological results are rare, in the order of 0-1.4% [7,9,28,29]; this is an important concept since, due to lack of surgical tissue for most of our patients, we could not assess the positive predictive value (PPV) of these cytologically positive but biopsy-negative specimens. Therefore, we believe that such results consist of false negatives on biopsy.…”

Diagnostic Yield of Flexible Bronchoscopy Without Fluoroscopic Guidance in Evaluating Peripheral Lung Lesions

“…12 However, there was also no information about the characteristics of the lesion. Lee et al 13 showed a rate of 86% in the diagnosis of peripheral pulmonary tumors with the technique of immediate cytologic examination of multiple brushings using the Riu stain. In this study, tumor size did not affect the diagnostic yield (83% for r3 cm, 88% for >3 cm).…”

Value of imprint cytology for ultrasound-guided transthoracic core biopsy

“…Riu9s stain, modified from Wright9s stain, was first introduced for blood smear staining in 1956 and has been widely used for varied cytological examinations [20]. It takes only 90 s to complete a staining procedure with Riu9s method and the diagnostic accuracy is equal to that achieved with Papanicolaou9s stain when diagnosing pulmonary malignancies [21].…”