Nódulos del tiroides: incidentalomas

background: tyroid nodule′s are frequently asymptomatic and they are diagnosed in casual way. objective: to establish clinical-imaging and cytohistologic relation of the thyroid nodule′s diagnosed on incidental way. method: a descriptive study was conducted, in a sample of one-hundred fourteen patients taken from a universe formed by all the patients to those were carried out doppler study (three hundred seventy seven patients) from september 2007 to october 2008 at "manuel ascunce domenech" hospital. results: in the study sample a preponderance of the feminine sex existed, where the micronodular lesions prevailed in both sexes. most of the patients with thyroid nodule′s had 51 or more years. conclusions: ultrasonografically, solid nodular lesions prevailed. cytohistologically, was bigger the number of patients with colloid goiter also three patients with thyroid neoplasia were found which also were carrier macronodular lesions.