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Thyroid papillary carcinoma. Pathological and philosophical controversies
The American Journal of Surgical Pathology
|December 1, 1983
Summary
Encapsulated thyroid tumors with papillary features are usually benign adenomas, not carcinomas. Histopathology guidelines aid diagnosis, but clinical behavior dictates patient management for these low-grade cancers.
Area of Science:
- Endocrinology
- Surgical Pathology
- Oncology
Background:
- Encapsulated thyroid tumors with papillary architecture present diagnostic challenges.
- Distinguishing between benign adenoma and papillary carcinoma is crucial for patient management.
Purpose of the Study:
- To differentiate between encapsulated follicular adenoma and encapsulated papillary carcinoma.
- To review histopathologic features and clinical management strategies for these thyroid lesions.
Main Methods:
- Histopathologic analysis of encapsulated thyroid tumors.
- Review of clinical data and patient outcomes.
- Evaluation of diagnostic guidelines for thyroid nodules.
Main Results:
- Encapsulated tumors with papillary architecture are more frequently hyperplastic follicular adenomas than papillary carcinomas.
- Key histopathologic features for carcinoma include psammoma bodies, fibrovascular stalks, and pale nuclear changes.
- Needle biopsy is valuable for screening thyroid nodules.
Conclusions:
- Equivocal diagnoses favor a benign interpretation due to the favorable prognosis of encapsulated papillary carcinomas.
- The biological behavior of the neoplasm is paramount in determining patient management over strict histopathologic interpretation.
- Surgical pathologists play a vital consultative role in patient care for thyroid lesions.