Follicular thyroid carcinoma (FTC) spans a spectrum from minimally invasive to widely invasive disease. The widely invasive form is associated with a substantially worse prognosis and requires a distinct management strategy reflected in major clinical practice guidelines.
Widely invasive follicular thyroid carcinoma — characterised by extensive vascular and/or capsular invasion — carries a significantly poorer prognosis than the minimally invasive subtype, with a higher risk of both distant and local metastasis. This difference in outcome drives a correspondingly more intensive recommended management approach.
For widely invasive FTC, clinical practice guidelines strongly recommend a completion surgical procedure combined with a targeted isotope-based therapy — the full protocol, including sequencing, criteria, and follow-up, is available in the structured regimen below.
DOI: 10.1530/ETJ-24-0146
Since the prognosis of patients with widely invasive FTC is significantly poorer compared to patients with minimally invasive FTC, completion total thyroidectomy with radioactive iodine (RAI) therapy for widely invasive FTC to detect the appearance of distant and local metastasis is strongly recommended in clinical practice guidelines.
View source ↗