Parathyroid cyst

Area of Science:

• Endocrinology
• Pathology
• Surgical Oncology

Background:

• Parathyroid cysts were infrequently reported until recently, with only 58 cases documented by 1967.
• Increased recognition has led to a growing body of literature on this entity.
• The authors report three new cases, bringing the global total to 149.

Purpose of the Study:

• To present three new cases of parathyroid cysts.
• To discuss diagnostic challenges and methods for parathyroid cyst identification.
• To review the potential origins and clinical associations of parathyroid cysts.

Main Methods:

• Histological examination of three parathyroid cyst cases.
• Treatment via aspiration or surgical excision.
• Analysis of fluid aspirates for parathormone and thyroxine levels.

Main Results:

• Three new cases of parathyroid cysts were identified and treated.
• Clinical differentiation from thyroid cysts can be challenging.
• Assays for parathormone and thyroxine in cyst fluid may not definitively distinguish origins.

Conclusions:

• Tissue diagnosis is essential for confirming parathyroid cysts.
• Parathyroid cysts can arise from developmental remnants, microcyst coalescence, or adenoma degeneration.
• Hyperparathyroidism is associated with cysts resulting from microcyst coalescence or adenoma degeneration.