title: [Echo-guided needle biopsy of the thyroid. An assessment of 52 thyroid neoplasms found in 1042 consecutive patients].
abstract: The authors report on a series of 1,043 fine-needle biopsies of the thyroid performed under US guidance; the patients had been selected for thyroid pathologic conditions. Fifty-two neoplasms were observed (46 papillary carcinomas, 1 medullary carcinoma, 2 follicular carcinomas, and 3 metastases), which had been detected by cytology and confirmed by histology or autopsy. The authors focus on 46 cases of papillary carcinoma: their US features were studied which, through a correlation of variables, allow a quick and "safe" recognition of the type of carcinoma (papillary carcinomas account for nearly 60% of thyroid neoplasms). Tumor echogenicity and outline, and the presence/absence of calcifications were evaluated: in most cases, papillary carcinomas presented as focal lesions (alone or associated with other goiter lesions), with irregular and blurred outline, no hypo/anechoic halo and, in about 1/3 of the cases, with calcifications and colliquative areas. In 17% of papillary neoplasms, metastases to loco-regional nodes were observable at US; in 3 cases the carcinoma did involve a loco-regional node but there were no US signs suggestive of it. The incidence of neoplasms on the total of fine-needle biopsies is 4.9%, while in a previous series of 3,038 fine-needle biopsies, without US guidance, on clinically detectable lesions, the figure was about 2%.
authors.affiliation: Radiologia, Ospedale San Giovanni, Roma.
authors.forename: F
authors.initials: F
authors.lastname: Falzoi
authors.forename: E
authors.initials: E
authors.lastname: Santini
authors.forename: F M
authors.initials: FM
authors.lastname: Solivetti
authors.forename: D
authors.initials: D
authors.lastname: Bacaro
authors.forename: F
authors.initials: F
authors.lastname: Nardi
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000473:pathology; D001707:Biopsy, Needle / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D002114:Calcinosis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000473:pathology; D002277:Carcinoma / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000473:pathology; D002291:Carcinoma, Papillary / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000473:pathology; D003581:Cytodiagnosis; D006801:Humans; D015994:Incidence; D008207:Lymphatic Metastasis; D009339:Needles; D012737:Sex Factors; D013961:Thyroid Gland / Q000000981:diagnostic imaging / Q000473:pathology*; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000473:pathology*; D014463:Ultrasonography
vernacular_title: Agobiopsia ecoguidata della tiroide. Valutazione di 52 neoplasie tiroidee riscontrate in 1043 pazienti consecutivi.