Related Experiment Video
Updated: Feb 10, 2026

Preparation of Prokaryotic and Eukaryotic Organisms Using Chemical Drying for Morphological Analysis in Scanning Electron Microscopy SEM
Published on: January 7, 2019
Neoplasm or not? General principles of morphologic analysis of dry bone specimens
Bruce D Ragsdale1, Roselyn A Campbell2, Casey L Kirkpatrick3
1Western Diagnostic Services Laboratory, San Luis Obispo, CA, USA; School of Human Evolution and Social Change, Arizona State University, Tempe, AZ, USA.
Abstract:
Unlike modern diagnosticians, a paleopathologist will likely have only skeletonized human remains without medical records, radiologic studies over time, microbiologic culture results, etc. Macroscopic and radiologic analyses are usually the most accessible diagnostic methods for the study of ancient skeletal remains. This paper recommends an organized approach to the study of dry bone specimens with reference to specimen radiographs. For circumscribed lesions, the distribution (solitary vs. multifocal), character of margins, details of periosteal reactions, and remnants of mineralized matrix should point to the mechanism(s) producing the bony changes. In turn, this allows selecting a likely category of disease (e.g. neoplastic) within which a differential diagnosis can be elaborated and from which a favored specific diagnosis can be chosen.
More Related Videos
Related Concept Videos
The Uncertainty Principle
Hardy-Weinberg Principle
The Pauli Exclusion Principle
The Aufbau Principle and Hund's Rule
Dry Friction
To illustrate this concept, imagine a wooden crate resting on a rough, non-uniform horizontal surface. When an external force is applied to...
Le Chatelier's Principle: Changing Concentration

