Follicular carcinoma of thyroid gland

Description

A differentiated adenocarcinoma arising from the follicular cells of the thyroid gland. The nuclear features which characterise the thyroid gland papillary carcinoma are absent. Radiation exposure is a risk factor and it comprises approximately 10% to 15% of thyroid cancers. Clinically, it usually presents as a solitary mass in the thyroid gland. It is generally unifocal and thickly encapsulated and shows invasion of the capsule or the vessels. Diagnostic procedures include: thyroid ultrasound and fine needle biopsy.

Coding note from above levels

For use of this category, reference should be made to the mortality coding rules and guidelines in the Reference Guide.

Exclusions from above levels

• http://id.who.int/icd/entity/1965082709 – Malignant mesenchymal neoplasms
• http://id.who.int/icd/entity/879154182 – Neoplasms of central nervous system or related structures
• http://id.who.int/icd/entity/944754984 – Neoplasms of haematopoietic or lymphoid tissues