Giant versus regular parathyroid adenoma: A retrospective comparative study.

Area of Science:

• Endocrinology
• Surgical Oncology
• Pathology

Background:

• Parathyroid adenoma (PTA) is a common endocrine tumor.
• Giant PTAs (>3.5g) represent a distinct subgroup, but their unique characteristics remain unclear.
• Understanding giant PTA differences is crucial for diagnosis and treatment strategies.

Purpose of the Study:

• To compare clinical, biochemical, and postoperative outcomes of giant versus regular PTAs.
• To identify factors that may predict the presence of giant PTAs.
• To inform diagnostic and management approaches for parathyroid adenomas.

Main Methods:

• Retrospective analysis of parathyroidectomy data from 2010-2019.
• Inclusion of 84 patients with parathyroid adenoma (PTA).
• Categorization into giant (≥3.5g) and regular PTA groups.

Main Results:

• Giant PTAs (28.6%) were heavier (mean 7.86g vs 1.45g) than regular PTAs.
• Giant PTA patients were younger (44.4 vs 50.8 years) and had higher preoperative PTH levels (650.8 vs 334.2 pg/mL).
• Giant PTAs were associated with a longer hospital stay (1.6 days longer).

Conclusions:

• Giant PTAs constitute a significant proportion of cases, potentially indicating delayed diagnosis.
• Clinical presentation is similar between giant and regular PTAs.
• Elevated PTH levels may serve as a predictive marker for giant adenoma weight.