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Carcinoma in Graves' disease
S Thakur1, A K Sharma, A Agarwal
1Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow.
The Journal of the Association of Physicians of India
|September 1, 1995
Summary
Thyroid cancer is rarely found with thyrotoxicosis, making preoperative diagnosis challenging. Suspicious findings in Graves' disease patients warrant surgical exploration and frozen section analysis to detect co-existing thyroid malignancy.
Area of Science:
- Endocrinology
- Oncology
- Surgical Pathology
Background:
- Thyrotoxicosis, particularly Graves' disease (GD), is an autoimmune condition affecting the thyroid gland.
- The co-occurrence of thyroid carcinoma with thyrotoxicosis is infrequent and poses diagnostic challenges.
- Distinguishing between benign and malignant thyroid nodules in GD patients preoperatively is difficult.
Purpose of the Study:
- To investigate the association between thyroid carcinoma and thyrotoxicosis in patients undergoing surgery for Graves' disease.
- To identify clinical and imaging features that may suggest concurrent thyroid malignancy in GD patients.
- To evaluate the utility of intraoperative frozen section analysis for detecting malignancy in this cohort.
Main Methods:
- Retrospective analysis of 49 patients operated for Graves' disease.
- Review of preoperative clinical findings, including palpable nodules.
- Assessment of imaging results (thyroid scans) for nodule characteristics (e.g., calcification, cold nodules).
- Intraoperative frozen section examination for suspected malignancy.
Main Results:
- Four out of 49 operated GD patients (8.2%) were found to have co-existing thyroid carcinoma.
- Presence of a palpable nodule, calcification, and a cold nodule on scanning were noted in these cases.
- Frozen section analysis during surgery was crucial for identifying malignancy.
Conclusions:
- While uncommon, thyroid carcinoma can be associated with Graves' disease.
- Clinical and imaging findings such as nodules, calcifications, and cold areas on scans in GD patients should raise suspicion for malignancy.
- Intraoperative frozen section examination is recommended for all suspicious cases during surgery for GD to rule out concurrent thyroid cancer.