Case Report
Calcitonin-Secreting Neuroendocrine Carcinoma of Larynx with Metastasis to Thyroid
Table 2
Features favoring diagnosis of MDNC of larynx.
| Features favoring diagnosis of MDNC of larynx | Features disfavoring MDNC of larynx |
| Age & sex | Bilateral C-cell hyperplasia of thyroid | Smoking history | | Clinical presentation of neck mass, hoarseness, and odynophagia | | Supraglottic location of primary tumor | | Normal serum CEA | | Serum calcitonin level compared to tumor volume | | Bilateral lateral cervical lymph node involvement | | Extensive lymph-vascular space invasion by tumor in lymph nodes | | Only focally positive TTF-1 staining in primary tumor and thyroid tumor | | Subcutaneous nodule metastases without overlying skin changes | | Negative amyloid stains of thyroid tumor and lymph node metastasis | |
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RET mutation testing pending.
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