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[Differentiated thyroid carcinoma in childhood: multicenter review of the club of pediatric oncology].

The club of paediatric oncology of the Sociedad Española de Cirugía Pediátria conducted a retrospective and multicentric study on differentiated thyroid carcinoma in children. Seventeen cases from four hospitals were reviewed. Initial surgery in all cases consisted of partial or total thyroidectomy, associated in 76% of cases by cervical node removal. In 6 patients (35%) tumoral mass relapsed and 13 cases (76%) hypothyroidism was observed as a post-surgical sequela (in one patient, furthermore dysphonia and hypoparathyroidism persisted). Total survival rate in the series is 100%; one patient is currently diagnosed of node relapsed and remaining patients are disease-free. A diagnostic protocol based on echography, gammagraphy and biopsy is proposed. Oncology surgery i.e. tumoral and healthy tissue resection with node removal in one operation is recommended. With this approach, although we tend to place the patient in hypothyroidism and therefore susceptible to substitutive therapy, the multiple relapses observed in the review would be avoided. Prolonged follow-up guarantees early diagnosis of possible tumoral recurrence.