10/01/2026
When cysts or nodules form, encapsulation is primarily a protective response by the body. To isolate a pathogen or wall off localized inflammation, the immune system creates a physical barrier around the threat to keep it from spreading.
Finding a cyst on an endocrine organ like the thyroid or parathyroid does not automatically mean the organ itself is malfunctioning. However, benign physical growths can still interfere with normal tissue, potentially inhibiting or overstimulating hormone production.