Evaluation of the effect of formalin fixation on skin specimens in dogs and cats.

PeerJ

Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville, FL , USA ; Emerging Pathogens Institute, University of Florida, Gainesville, FL , USA.

Published: April 2014

Skin and subcutaneous tissues are the origin of most common neoplasms affecting dogs, accounting for approximately one third of all tumors encountered in the species. Surgical excision is frequently the best chance for a cure; determining factors influencing the success of excision are vital for surgical management of cases. This work examined the shrinkage of skin of various lengths from three sites in formalin for both dogs and cats. Tissues were measured on the animal (initial measurement), at the time of excision (post-removal), and after formalin fixation (post-fixation). While shrinkage after tissue removal was found in samples from the thorax, abdomen, and rear leg in dogs and from the rear leg in cats, no significant shrinkage due to formalin fixation was detected in any sample except for the thoracic samples from the dog. Therefore, when determining where to make incisions to effect a surgical cure, initial measurements should take into account tissue shrinkage effects.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3961154PMC
http://dx.doi.org/10.7717/peerj.307DOI Listing

Publication Analysis

Top Keywords

formalin fixation
12
dogs cats
8
rear leg
8
evaluation formalin
4
fixation skin
4
skin specimens
4
dogs
4
specimens dogs
4
cats skin
4
skin subcutaneous
4

Similar Publications

Background: Multiplex genetic testing is recommended when treating nonsmall cell lung cancer. A certain percentage of test failures in RNA assays owing to poor surgical specimen quality have been documented, and fixation failure is a possible cause. At our institution, sheet-like fixation is performed to reduce fixation time.

View Article and Find Full Text PDF

Organ weight and size are important data collected during post-mortem examination not only in neoplastic diseases but also in other conditions, like cardiomyopathies. As post-mortem cardiac examination is challenging, it should be performed by experienced specialists. Nonetheless, the low number of referral centres in veterinary medicine requires the shipment of formalin-fixed specimens to perform detailed post-mortem cardiac examinations.

View Article and Find Full Text PDF

Technical Note: Application of Luminol and Leucomalachite Green Tests to Wischnewsky Spots After Formalin Fixation.

Am J Forensic Med Pathol

January 2025

From the Section of Legal Medicine, Department of Social Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.

Wischnewsky spots are disseminated, dark lesions in gastric mucosa reflecting hemorrhage associated with fatal hypothermia, and are a phenomenon well known to forensic pathologists. We applied luminol and leucomalachite green tests to formalin-fixed gastric mucosa with Wischnewsky spots in autopsy cases of hypothermia. Both luminol and leucomalachite green tests showed positive reactions.

View Article and Find Full Text PDF

In recent years, significant advancements have been achieved in the development of multiplex imaging methodologies for immunophenotyping, enabling a comprehensive characterization of the complexity of tumor microenvironments. Imaging mass cytometry combines the detection of over 40 cellular targets with spatial information, enabling the identification of not only which cells are present in a tissue but also their localization relative to each other. Here, we present an easy-to-implement imaging mass cytometry workflow that ranges from antibody selection and testing to running a full panel.

View Article and Find Full Text PDF

Aims: Establishment of a protocol for routine single-molecule localisation microscopy (SMLM) imaging on formalin fixed paraffin embedded (FFPE) tissue using medical renal disease including minimal change disease (MCD) and focal segmental glomerulosclerosis (FSGS).

Methods: Protocol for normal and diseased renal FFPE tissue was developed to investigate the clinical diagnostic potential of SMLM. Antibody concentrations were determined for confocal microscopy and transferred to SMLM.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!