FVH Pathologie cheat sheet
FVH Pathologie · Keep the key ideas within reach.
Veterinary pathology, specimens and interpretation
A morphological diagnosis describes change before claiming one cause.
Sampling, handling and fixation depend on the actual laboratory question.
Cytology, architecture, marker tests and clinical context provide complementary evidence.
Detection alone does not prove causation and negative results retain sampling limits.
Veterinary necropsy, postmortem change and specimen integrity
Identity, history and biosafety determine the appropriate necropsy pathway.
Postmortem change must be distinguished from antemortem lesions.
Systematic examination preserves anatomical relationships and competing explanations.
Different laboratory questions require appropriate separate specimen handling.
Microscopic patterns, tissue injury and special stains
Start with organ, architecture, distribution and specimen quality.
A morphological injury or inflammatory pattern is not one unique cause.
Special stains need controls and morphological correlation.
Species, history and representative sampling determine diagnostic interpretation.
Immunophenotyping, clonality and molecular assay interpretation
Define whether the assay tests lineage, target detection, clonality or mutation.
Marker panels require morphology, controls and relevant species validation.
Clonality and malignancy are related but not identical conclusions.
Spatial detection, quantitative signals and clinical outcomes answer different questions.
Cytology, blood findings, effusions and clinical chemistry
Species, collection and sample quality matter before interpretation.
Regenerative response, morphology and timing refine anemia classification.
Cytology may characterize cells without proving invasion or whole-tumor grade.
Fluid and chemistry results need physiological and clinical correlation.
Veterinary tumor classification, grading and prognostic limits
Lineage, grade and stage describe distinct aspects of a neoplasm.
Morphology, species and marker evidence must support classification.
A grading cutoff applies within its actual tumor and counting method.
Sampled margins and prognostic markers retain uncertainty and do not guarantee outcome.
Toxic and metabolic lesions across veterinary species
A plausible exposure history is not definitive toxicological confirmation.
Species, dose and duration influence target-organ lesions.
Nutritional and endocrine mechanisms need the actual tissue and physiological context.
Analytical results require suitable samples and do not automatically determine treatment.