11 September 2022
: Case report
A Rare Case of Negative Serum Calcitonin in Metastatic Medullary Thyroid Carcinoma: Diagnosis, Treatment, and Follow-Up Strategy
Challenging differential diagnosis, Diagnostic / therapeutic accidents, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)
Lorena Licata1AE, Cristina A. Di Fidio1BCE, Marco Vacante1F, Francesco Basile1D, Antonio Biondi1F, Pierina Richiusa2AB, Alessandra Gurrera3D, Roberto Ciuni1ADE*DOI: 10.12659/AJCR.935207
Am J Case Rep 2022; 23:e935207
Figure 2. Transection of MTC. Histologic section of medullary thyroid carcinoma characterized by dense bands of fibrous tissue (black arrow) and trabecular or sheetlike growth pattern (red arrow). Cells appear round, polygonal, or spindle-shaped. The cytoplasm is eosinophilic and finely granular (blue circle).