title: "Bulky mass":  metastasis of poorly differentiated follicular thyroid carcinoma: a case report.
abstract: Poorly differentiated follicular thyroid carcinoma (PDFC) is a tumor of follicular cell origin with intermediate attributes between well-differentiated carcinomas and anaplastic carcinomas. The majority of patients presenting with distant metastases have locally advanced tumors, being lungs and bones the most common sites affected. We present a case of a patient with a painful bulky mass at the left thorax-abdominal wall as an uncommon distant metastasis of a PDFC. After thyroidectomy, a pre-ablative 131I whole-body scan showed distant metastases on the neck, both lungs, and lateral chest-abdominal wall, so the administration of I for thyroid remnant ablation stimulated with RH-TSH was decided.
authors.affiliation: Nuclear Medicine Department, Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela, Spain. sniemal@gmail.com
authors.forename: Shirly
authors.initials: S
authors.lastname: Nieves-Maldonado
authors.forename: Virginia
authors.initials: V
authors.lastname: Pubul-Nuñez
authors.forename: Sonia
authors.initials: S
authors.lastname: Argibay-Vazquez
authors.forename: Jose Manuel
authors.initials: JM
authors.lastname: Cabezas-Agrícola
authors.forename: Alvaro
authors.initials: A
authors.lastname: Ruibal-Morell
mesh_terms: D018263:Adenocarcinoma, Follicular / Q000473:pathology* / Q000601:surgery; D000369:Aged, 80 and over; D044963:Biopsy, Fine-Needle; D002454:Cell Differentiation; D005260:Female; D006801:Humans; D009362:Neoplasm Metastasis; D013961:Thyroid Gland / Q000473:pathology; D013965:Thyroidectomy; D051598:Whole Body Imaging