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. 2022 Aug 20;7(9):334-336.
doi: 10.1016/j.vgie.2022.07.001. eCollection 2022 Sep.

The Double-Max method: a novel method for gallbladder epithelial biopsy

Shun Fujiwara  1 , Masanori Kobayashi  1 , Kazuo Ohtsuka  1 , Minoru Tanabe  2 , Ryuichi Okamoto  1
Affiliations

The Double-Max method: a novel method for gallbladder epithelial biopsy

Shun Fujiwara et al. VideoGIE. .

Abstract

Video 1A novel biopsy method for gallbladder epithelial biopsy.

Keywords: ETGBD, endoscopic transpapillary gallbladder drainage; POCS, peroral cholangioscopy.

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Figures

Figure 1
Figure 1
Images of the gallbladder lesion. A, Contrast-enhanced CT revealed that there was irregular thickening of the gallbladder wall (red arrows), although extramural invasion was not evident. B, EUS revealed that there were many mobile polyps larger than 10 mm in the gallbladder. Wall thickening also was observed in a part of the gallbladder wall (red arrows), but no extramural invasion was detected.
Figure 2
Figure 2
The Double-Max method. A, Cytomax II double-lumen biliary cytology brush, with SpyBite Max Biopsy Forceps inserted in the main lumen, in preparation. The tail of the guidewire placed in the gallbladder is fed through the side lumen. B, Biopsy forceps can also be used in retroflex position, which allows for the collection of tissue samples from a wide area.
Figure 3
Figure 3
Histological images. A, H&E staining of the biopsy specimen taken from the gallbladder showed normal cylindrical epithelium with no evidence of malignancy (H&E, orig. mag. ×100). B, Macroscopic image of the surgical specimen showed a large number of yellowish or light brown polyps up to 5 mm at the gallbladder fundus. C, H&E staining of the surgical specimen revealed cholesterol polyps with no malignant findings, consistent with the biopsy results (H&E, orig. mag. ×100).
See this image and copyright information in PMC

References

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