A Rare Case of Negative Serum Calcitonin in Metastatic Medullary Thyroid Carcinoma: Diagnosis, Treatment, and Follow-Up Strategy

Lorena Licata; Cristina A. Di Fidio; Marco Vacante; Francesco Basile; Antonio Biondi; Pierina Richiusa; Alessandra Gurrera; Roberto Ciuni

doi:10.12659/AJCR.935207

11 September 2022: Articles

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 Licata ^A , Cristina A. Di Fidio ^B , Marco Vacante ^F , Francesco Basile ^D , Antonio Biondi ^F , Pierina Richiusa ^A , Alessandra Gurrera ^D , Roberto Ciuni ^A*

DOI: 10.12659/AJCR.935207

Am J Case Rep 2022; 23:e935207

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Background Case Report Discussion Conclusions References:

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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).

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A Rare Case of Negative Serum Calcitonin in Metastatic Medullary Thyroid Carcinoma: Diagnosis, Treatment, and Follow-Up Strategy

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