[CT-guided biopsy of thoracic mass lesions followed by fast stain technique].
We performed CT-guided needle biopsy of 92 thoracic mass lesions using a Rotex-II screw needle. Fast stain technique was performed for an immediate evaluation of the specimen in the last 39 procedures. The overall accuracy of malignancy was 93.2%, and the correct histological typing was obtained in 82.8% of malignancy proven at surgery or autopsy. The method enabled histopathological diagnosis of thoracic lesions, which could not obtained by other diagnostic modalities including fiberoptic bronchoscopy or fluoroscopy-guided biopsy. The true positive rate increased up 10.2% to 91.3% by introducing fast stain technique. A close cooperation between radiologists and cytopathologists was essential for performing this CT-guided biopsy procedure followed by fast stain technique.
Department of Radiology, Tenri Hospital.
M
M
Takahashi
A
A
Sano
S
S
Nishizawa
M
M
Murakami
S
S
Otake
K
K
Fujiwara
Y
Y
Miki
K
K
Kawakami
Y
Y
Kuwata
I
I
Takada
D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000473:pathology; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle / Q000295:instrumentation / Q000379:methods; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D013194:Staining and Labeling / Q000379:methods; D013997:Time Factors; D014057:Tomography, X-Ray Computed