Analysis of malignancy predictors for oxyphile thyroid tumors.
Rastko Zivic1, Aleksandar Diklic, Sandra Sipetic Grujicic
1Surgical Clinic, Clinical Center "Dr Dragisa Misovic-Dedinje", Belgrade, Serbia.
Summary
Preoperative thyroglobulin levels can help predict malignancy in oxyphile thyroid tumors. Elevated thyroglobulin (≥300 ng/ml) is a key indicator for distinguishing cancerous tumors from benign adenomas.
Area of Science:
- Endocrinology
- Oncology
- Surgical Pathology
Background:
- Preoperative diagnosis of oxyphile thyroid carcinoma is challenging compared to other thyroid cancers.
- Accurate diagnosis is crucial for appropriate surgical planning and patient management.
Purpose of the Study:
- To identify predictive factors of malignancy in oxyphile thyroid neoplasms.
- To assist surgeons in selecting the optimal operative strategy for patients.
Main Methods:
- Retrospective analysis of 256 patients with oxyphile thyroid tumors (1999-2008).
- Classification into adenomas (142) and carcinomas (114) based on histopathology.
- Univariate and multivariate logistic regression analysis of clinical and demographic data.
Main Results:
- Male gender, higher thyroglobulin (≥300 ng/ml), and larger tumor size (>30 mm) were more common in carcinomas.
- Hashimoto's thyroiditis and AntiTPO antibodies were less frequent in carcinomas.
- Elevated preoperative thyroglobulin (≥300 ng/ml) emerged as the sole independent predictor of malignancy (OR=5.88, p=0.001).
Conclusions:
- Preoperative thyroglobulin concentration is a significant independent predictor of malignancy in oxyphile thyroid carcinomas.
- This finding aids in differentiating benign from malignant oxyphile thyroid tumors preoperatively.
