FIGURE LEGENDS:
Figure 1: Flexible Laryngoscopy with intact mucosa.
Figure 2: MRI with cricoid CS and lymph node involvement.
Figure 3: HE 40x. Neoplastic proliferation with increased cellularity, nuclear pleomorphism, hyperchromasia and invasion of the cricoid cartilage. There are more than one cell per lacunae.
Figure 4: HE 20 x. A Metastasis from a conventional PTC with papillary pattern and a Psammoma body is present in this cervical lymph node.
Figure 5: TTF-1 20x. PTC cells are immunoreactive for TTF-1.
Figure 6: Flow Chart. Systematic Review.
Figure 7: Articles included in the systematic review.
Figure 8: Demographics, symptoms, location, imaging.
Figure 9: Treatment, tumor characteristics, and follow-up period.
Figure 10: Overall Survival.
Figure 11: Survival according to location.
Figure 12: Survival according to histological differentiation.
Figure 13: Survival according to surgical treatment.