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[Medullary thyroid carcinoma: prognostic factors]
M R Pelizzo1, B Busnardo, P Bernante
1Istituto di Chirurgia Generale I, Università degli Studi di Padova.
Minerva Chirurgica
|November 1, 1993
Summary
Age and tumor stage significantly impact medullary thyroid carcinoma (MTC) survival. Younger patients and those with earlier stage MTC have better prognoses, with recurrences often occurring within five years post-surgery.
Area of Science:
- Endocrinology
- Surgical Oncology
- Oncology
Context:
- Medullary thyroid carcinoma (MTC) presents unique challenges in treatment and prognosis.
- Long-term outcomes following total thyroidectomy and nodal neck dissection require detailed analysis.
Purpose:
- To identify prognostic factors influencing long-term survival in medullary thyroid carcinoma patients.
- To analyze the impact of age, tumor stage, and metastasis on MTC outcomes.
Summary:
- This study analyzed 51 patients with medullary thyroid carcinoma (MTC) undergoing total thyroidectomy and nodal neck dissection, with a minimum 10-year follow-up.
- Survival rates were significantly higher for patients diagnosed before age 50 (90%) compared to those over 50 (45%).
- Stage II MTC showed better survival (85%) than Stage III (55%), with Stage III also having a higher recurrence rate (70% vs. 20%). Patients with bony metastases had significantly poorer survival (30% at 3 years) compared to those without (100% at 10 years).
Impact:
- Identifies critical prognostic indicators for medullary thyroid carcinoma, aiding in risk stratification.
- Highlights the importance of early diagnosis and surgical intervention for improved patient survival.
- Provides valuable data for long-term patient management and clinical trial design in MTC.