Planimetric correlation between the submandibular glands and the pancreas: a postmortem ductographic study

Area of Science:

• Anatomy
• Pathology
• Histology

Background:

• Salivary glands and pancreas share similar anatomical and antigenic properties.
• Both organs can be affected by common toxic or autoimmune pathogenetic mechanisms.
• Understanding size correlations may reveal shared physiological or pathological processes.

Purpose of the Study:

• To assess the correlation in planimetric size between normal submandibular glands and the pancreas.
• To investigate potential shared growth or atrophy patterns.
• To explore clinical implications for conditions affecting both organs.

Main Methods:

• Human autopsy specimens of pancreas and submandibular glands from 22 adults were analyzed.
• Pancreatic and submandibular ducts were injected with contrast medium.
• Glandular ductogram areas were measured using image analysis software, with tissue samples examined via light microscopy.

Main Results:

• A high positive correlation was observed between the planimetric size of the pancreas and both the right (r=0.497) and left (r=0.699) submandibular glands.
• The size ratio between the pancreas and submandibular glands was approximately 5:1.
• Ductograms were significantly larger in males than females (p < 0.001), with no significant left-right submandibular gland size difference (p=0.39).

Conclusions:

• A significant positive correlation exists in the planimetric size of the normal submandibular glands and the pancreas.
• This finding suggests shared developmental or regulatory factors.
• The correlation may have clinical implications for managing patients with chronic pancreatitis.