Introduction:

The phenomenon of multiple primary neoplasms has been described in the head and neck in a synchronous and metachronous way.

Clinical case:

A 54 years old man, black skin and rural origin with a T3N1M0 larynx squamous cell carcinoma, stage III that in a neck dissection was incidentally found a node metastasis of papillary thyroid carcinoma, without clinical evidence of thyroid lesion. This was followed by ultrasound and nuclear scan of the gland, whose results did not show any alteration.

Conclusions:

The thyroid carcinoma is found incidentally in the resected specimen after surgery by head and neck cancer in 0.3 - 1.9 % of patients.

The thyroid gland must be well assessed after head and neck surgery.

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