title: Solitary thyroid metastasis from colon cancer: a rare case report.
abstract: Malignant metastases to the thyroid are rare and are even rarer from a colorectal primary. As these metastases are often asymptomatic, they are usually discovered incidentally on imaging performed as follow-up for the primary tumour. In this report, we present a case of metastatic sigmoid adenocarcinoma to the thyroid diagnosed and treated at our institution.
authors.affiliation: Scuola di Specializzazione in Radiodiagnostica, Università degli Studi di Milano, Milano, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Nicosia
authors.affiliation: Divisione di Radiologia, Istituto Europeo di Oncologia, Milano, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Alessi
authors.affiliation: Divisione di Otorinolaringoiatria e Chirurgia Cervico Facciale Istituto Europeo di Oncologia, Milano, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Proh
authors.affiliation: Divisione di Otorinolaringoiatria e Chirurgia Cervico Facciale Istituto Europeo di Oncologia, Milano, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Grosso
authors.affiliation: Divisione di Otorinolaringoiatria e Chirurgia Cervico Facciale Istituto Europeo di Oncologia, Milano, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Ansarin
authors.affiliation: Divisione di Anatomia Patologica, Istituto Europeo di Oncologia, Milano, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Vingiani
authors.affiliation: Divisione di Anatomia Patologica, Istituto Europeo di Oncologia, Milano, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Pisa
authors.affiliation: Divisione di Radiologia, Istituto Europeo di Oncologia, Milano, Italy.
authors.forename: E
authors.initials: E
authors.lastname: De Fiori
keywords: fine needle aspiration (FNA); radiological follow-up; thyroid metastasis; ultrasound imaging