9091/1 Strumal carcinoid
SynonymsStruma ovarii and carcinoid
|ICD-O-3 topography code:||C56|
An ovarian neoplasm characterized by the presence of aberrant thyroid tissue and a carcinoid tumor. The neuroendocrine carcinoid cells infiltrate the aberrant thyroid tissue and progressively replace the follicular lining cells. A minority of patients develop symptoms of functioning thyroid tissue.