insular carcinoma
insular carcinoma
insular carcinoma (thyroid)
An unencapsulated type of poorly differentiated thyroid carcinoma seen in older patients which is usually associated with aggressive clinical behaviour.DiffDx
Medullary carcinoma of carcinoid type.
Prognosis
Intermediate between well-differentiated follicular carcinoma and anaplastic carcinoma; 50% 5-year survival; high incidence of nodal and haematogenous metastasis, and death from metastatic rather than local disease; tracheal compression is a particularly worrying symptom.