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 1. Intense immunohistochemical staining of tumor cells for calcitonin. IHC of a histologic section of Ct-negative medullary thyroid carcinoma stained with anti-calcitonin antibody.