The pancreas from Aristotle to Galen

Area of Science:

• Anatomy
• History of Medicine
• Surgical Anatomy

Background:

• The earliest mention of the pancreas is in Aristotle's 'Historia Animalium', though with a qualifier suggesting it was not fully understood.
• Investigation into the pancreas's origin traces back to ancient Greek texts and practices like avian intestinal divination.

Discussion:

• The term 'pankreas' or 'kallikreas' may have originated from avian anatomy, known through divination practices.
• Human anatomical dissection was limited in Aristotle's era, suggesting 'so-called pancreas' was an interpolation by Theophrastus.
• Herophilus, a Alexandrian physician, may have been the first to identify the human pancreas, naming it 'so-called pancreas', which Theophrastus later incorporated.

Key Insights:

• Theophrastus likely interpolated the term 'so-called pancreas' into Aristotle's work, possibly based on Herophilus's findings.
• Galen also used the term 'so-called pancreas', indicating a continued ambiguity in its early identification.
• Galen's descriptions hint at rare portal vein anomalies, such as preduodenal or prepancreatic portal veins, which have surgical significance.

Outlook:

• Understanding the historical naming and identification of the pancreas provides context for its anatomical study.
• The rare vascular anomalies associated with the pancreas underscore the importance of detailed anatomical knowledge in surgical planning.
• Further research into ancient medical texts can illuminate the evolution of anatomical understanding.