follicular carcinoma of thyroid

follicular carcinoma of thyroid

A well-differentiated carcinoma arising in the thyroid follicular cells, which is divided into:
• Minimally-invasive follicular carcinoma of thyroid (FCT)
This is an encapsulated neoplasm with partial- or complete-capsular invasion and an excellent prognosis (unless there is vascular invasion, in which case, the more foci of vascular invasion identified, the worse the prognosis. 4 foci indicates a bad prognosis for the patient; 5 is worse).
• Widely-invasive FCT
A neoplasm which is not contained within a nodule, characterised by cellular atypia and mitoses, which invades thyroid and extra-thyroidal tissue, is recognised surgically and clinically as cancer, and usually has a solid growth pattern. Prognosis is poor with a high mortality rate.
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References in periodicals archive ?
FNAC from the nodule showed uniform sized epithelial cells arranged in repetitive follicular pattern & rosettes, suggestive of follicular carcinoma of thyroid (Figure 2, 3).
Follicular carcinoma of thyroid rarely metastasizes to skin, but when they do so, scalp is the site of predilection.
Sella turcica metastasis from follicular carcinoma of thyroid.