XXXX mimic clear cell carcinoma.

@entity1 @entity19967 @entity43 @entity189 @entity530 @entity3745 @entity44
INTRODUCTION: @entity19967 are quite unusual lesions that represent less than 3% of all @entity44 and its malignant transformation is very uncommon. The clinical manifestations are characteristic of @entity530 and the hormonal metabolism is not usually modified. Radiography, employing ultrasound procedures, is the most commonly used pre-surgical detection method but only histological examination makes the diagnosis. The malignance recognition by pathological study not always is easy; in this sense, it requires an exhaustive sampling of the lesion, being specially carefully in some aspects related with malignant transformation such as extending beyond the capsula and involving peripheral tissues. A thyroidal differentiation must be confirmed by immunohistochemical study and other local processes with similar histology should be ruled out. Given the exceptional character of malignant forms, there does not appear to be unanimous agreement on a standard therapy with a somewhat uncertain prognosis. CASE REPORT: We show a case of a 22-year-old @entity1 with an @entity43 that was discovered by ultrasound examination and surgically removed. The histologic study revealed @entity19967 with @entity189 and unlike previously published cases, had a prevalence of clear cells. The @entity1 was submitted to a second surgical staging intervention, with conservative surgery and follow-up controls being considered given that was a young @entity1 with a desire to have @entity1 . Laparoscopy was employed as the best method capable to facilitate shorter convalescence. OUTCOME: Clinical and analytical controls, measuring @entity3745 levels, has been satisfactory up to the present.
