Frozen Section Examination of Liver, Gallbladder, and Pancreas

2005 ◽  
Vol 129 (12) ◽  
pp. 1610-1618 ◽  
Author(s):  
Juan Lechago

Abstract Context.—Frozen section of the liver is a comparatively frequent request that most often applies to a relatively limited number of situations. The only indication for frozen tissue examination of a gallbladder with any frequency is the presence of a polypoid mucosal lesion or a suspicious thickening of the gallbladder wall. A variety of intraoperative consultations may be applicable during surgery of the pancreas. Objective.—To examine the indications and pitfalls regarding the gross examination and frozen section performance for liver, gallbladder, and pancreas. Data Sources.—Author experience and review of the pertinent literature. Conclusions.—Although indications are relatively straightforward for frozen section of liver and gallbladder, handling of the pancreas specimens for frozen tissue examination is often a cause for a certain degree of anxiety. This situation is the result of a relative rarity of such specimens outside large tertiary referral medical centers coupled with a variety of confounding factors, including the presence of chronic pancreatitis with distortion of the normal structures and the frequent presence of variable degrees of dysplasia. The suboptimal preservation of the frozen tissue adds further angst to the scenario. In this article, the main issues are critically examined in light of the experience of the author and others.

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tim Kümmel ◽  
Björn van Marwick ◽  
Miriam Rittel ◽  
Carina Ramallo Guevara ◽  
Felix Wühler ◽  
...  

AbstractFrozen section analysis is a frequently used method for examination of tissue samples, especially for tumour detection. In the majority of cases, the aim is to identify characteristic tissue morphologies or tumour margins. Depending on the type of tissue, a high number of misdiagnoses are associated with this process. In this work, a fast spectroscopic measurement device and workflow was developed that significantly improves the speed of whole frozen tissue section analyses and provides sufficient information to visualize tissue structures and tumour margins, dependent on their lipid and protein molecular vibrations. That optical and non-destructive method is based on selected wavenumbers in the mid-infrared (MIR) range. We present a measuring system that substantially outperforms a commercially available Fourier Transform Infrared (FT-IR) Imaging system, since it enables acquisition of reduced spectral information at a scan field of 1 cm2 in 3 s, with a spatial resolution of 20 µm. This allows fast visualization of segmented structure areas with little computational effort. For the first time, this multiphotometric MIR system is applied to biomedical tissue sections. We are referencing our novel MIR scanner on cryopreserved murine sagittal and coronal brain sections, especially focusing on the hippocampus, and show its usability for rapid identification of primary hepatocellular carcinoma (HCC) in mouse liver.


2005 ◽  
Vol 8 (5) ◽  
pp. 533-540 ◽  
Author(s):  
Kadria Sayed ◽  
Van H. Savell ◽  
Robert E. Hutchison ◽  
James Kepner ◽  
Michael P Link ◽  
...  

Financial considerations have led to suggestions that routine microscopic evaluation of tonsils and adenoids is neither cost effective nor clinically indicated. However, the possibility of tonsillar lymphoma must be carefully weighed when making institutional policy decisions. One way to find an appropriate algorithm for pathologic examination is to examine the characteristics of biopsy-proved tonsillar lymphomas. To investigate the clinicopathologic characteristics of tonsillar lymphoma, we performed a retrospective analysis of patients who had non-Hodgkin lymphoma (NHL) and large-cell or Burkitt lymphoma involving the tonsils and adenoids and were registered on Pediatric Oncology Group (POG) protocols. Seventy-seven (9%) of 832 POG cases of NHL involved the tonsils and adenoids. Review of the pathology reports available from 29 of these cases revealed that NHL was incidentally discovered by pathologic examination in only 5 cases, all of which had clinical evidence of unilateral tonsillar enlargement or size discrepancy by gross examination. The other 24 cases indicated a clinical suspicion of tonsillar cancer, as judged by a preoperative diagnosis or by a request for frozen-section examination. We conclude that in most cases there is a clinical suspicion of tonsillar NHL at the time of gross examination. With routine cases, we predict that the use of comparative organ weights, a clinical impression of tonsillar asymmetry, and review of clinical history will increase the recognition of tonsillar lymphoma when “gross-only” protocols are employed for specimen handling.


2019 ◽  
Vol 9 (9) ◽  
pp. 95 ◽  
Author(s):  
Gregory J. Poarch ◽  
Andrea Krott

The debate on possible cognitive advantages bilinguals have over monolinguals continues to occupy the research community. There is an ever-growing research body focusing on adjudicating whether there is, in fact, an effect of using two or more languages regularly on cognition. In this paper, we briefly review some of the more pertinent literature that has attempted to identify attenuating, modulating, and confounding factors in research comparing monolingual and bilingual populations, and we highlight issues that should be taken into account in future research to move forward as a research community. At the same time, we argue for a change in perspective concerning what is deemed an advantage and what is not and argue for more ecologically valid research that investigates real-life advantages.


2017 ◽  
Vol 86 (2) ◽  
pp. e76
Author(s):  
Han-Chi Tseng ◽  
Hsin-Wei Huang ◽  
Chun-Bing Chen ◽  
Pei-Lun Sun ◽  
Wen-Hung Chun ◽  
...  

2008 ◽  
Vol 278 (3) ◽  
pp. 209-213 ◽  
Author(s):  
Fatemah Ghaemmaghami ◽  
Fereshteh Fakour ◽  
Mojgan Karimi Zarchi ◽  
Nadereh Behtash ◽  
Mitra Modares Gilani ◽  
...  

2013 ◽  
Vol 472 (3) ◽  
pp. 836-841 ◽  
Author(s):  
Megan E. Anderson ◽  
Patricia E. Miller ◽  
Kelsey van Nostrand ◽  
Sara O. Vargas

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