Μυελοειδές καρκίνωμα θυρεοειδούς σαν τυχαίο εύρημα μετά από λοβεκτομή

EXOPHYTIC – PARACYTIC THYROID NODULES

The terms “exophytic” – “paracytic” thyroid nodules refer to the presence of thyroid tissue in the neck or in the superior mediastinum, but not within lymph node(-s), through progression of thyroid nodular disease on the surface of the gland

EXOPHYTIC NODULES are nodules forming on the surface of the thyroid, that progressively enlarge and detach from the main portion of the thyroid gland. This scenario is not uncommon. Exophytic nodules have clinical significance since they may remain undetected during surgery since they are not connected with the main thyroid gland. Failure to remove exophytic nodules dramatically decreases the therapeutic effectiveness of surgery and may necessitate reoperation. This emphasizes the crucial importance of a detailed and reliable ultrasonography of the thyroid.

PARACYTIC NODULES are nodules forming at some distance from the normal position of the thyroid in the neck, due to implantation of thyroid parenchyma in the neck (e.g., behind the larynx or behind the carotid artery) during thyroid surgery. This clinical entity is rare, and occurs after some time following thyroidectomy. Reoperative surgery may be required to radically resect these nodules.