TIR 5. POSITIVE FOR MALIGNANT CELLS
All cases with a diagnosis of malignant neoplasm (papillary, medullary and anaplastic carcinomas, lymphomas and metastasis) are included in this category. It accounts for 5-15% of the cytologic diagnoses. The medical report should contain an adequate cytologic description.
Operative suggestion. Surgery for differentiated carcinomas. The surgical option should be evaluated in the clinical setting and on the basis of the cytologic report.
FNC is a screening test. The definitive diagnosis can be made only with the histological examination. For anaplastic carcinomas, lymphomas and metastatic lesions the continuation of the appropriate diagnostic procedure is recommended.
Working Group SIAPEC-IAP for the Consensus on Classification of Thyroid Cytology
Fulvio Basolo (Pisa), Arrigo Bondi (Bologna), Gianni Bussolati (Turin), Anna Crescenzi (Albano Laziale), Guido Fadda (Rome), Oscar Nappi (Naples), Francesco Nardi (Rome), Lucio Palombini (Naples), Mauro Papotti (Turin), Gianluigi Taddei (Florence)