title: Metastatic signet ring cell carcinoma presenting as a thyroid diffuse involvement: report of a case studied with Q-elastographic and acoustic radiation force impulse imaging features.
abstract: Metastatic carcinomas to the thyroid are rare in daily clinical practice. However, when encountered they represent a diagnostic challenge, since it is difficult to distinguish them from primary thyroid lesions, especially when occurring in patients with occult malignant history. Nevertheless, it is critical to differentiate a metastatic tumor from primary thyroid lesions, as the clinical management and the prognosis are different for the two entities. More recently, elastosonography opened new possibilities to ultrasound in different fields, such as thyroid nodule differentiation. Herein, we report a case of metastatic signet ring cell carcinoma to the thyroid studied with quantitative elastography and acoustic radiation force impulse imaging.
authors.forename: Vito
authors.initials: V
authors.lastname: Cantisani
authors.forename: Pietro
authors.initials: P
authors.lastname: Lodise
authors.forename: Carla
authors.initials: C
authors.lastname: Di Cosimo
authors.forename: Alessio
authors.initials: A
authors.lastname: Metere
authors.forename: Carlo
authors.initials: C
authors.lastname: Chiesa
authors.forename: Ester
authors.initials: E
authors.lastname: Mancuso
authors.forename: Mattia
authors.initials: M
authors.lastname: Di Segni
authors.forename: Cristina
authors.initials: C
authors.lastname: Fioravanti
authors.forename: Giorgio
authors.initials: G
authors.lastname: Di Rocco
authors.forename: Maria Giulia
authors.initials: MG
authors.lastname: Bernieri
authors.forename: Paolo
authors.initials: P
authors.lastname: Ricci
authors.forename: Giovanni
authors.initials: G
authors.lastname: Fierro
authors.forename: Laura
authors.initials: L
authors.lastname: Giacomelli
authors.forename: Nicola
authors.initials: N
authors.lastname: Orsogna
authors.forename: Adriano
authors.initials: A
authors.lastname: Redler
mesh_terms: D044963:Biopsy, Fine-Needle; D018279:Carcinoma, Signet Ring Cell / Q000000981:diagnostic imaging* / Q000556:secondary*; D003937:Diagnosis, Differential; D054459:Elasticity Imaging Techniques / Q000379:methods*; D017809:Fatal Outcome; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016606:Thyroid Nodule / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed