Endocrine Abstracts

Context: Initial studies reported that RET rearrangements, RAS mutations and BRAF mutation are mutually exclusive genetic events in papillary thyroid carcinoma (PTC). Subsequently, simultaneous occurrence of BRAF mutation and RET/PTC or H4-PTEN has been described in few PTC cases, indicating that these genetic alterations might coexist in PTC in the same cell or in different cells, at least sporadically. In light of the recent finding that frequently BRAF mutation is present o...

Context: Although unexplained conflicting results are present in the literature, most of studies report the association of BRAFV600E in papillary thyroid carcinoma (PTC) with a more advanced disease and with a worst prognosis. We recently demonstrated that in most of the cases PTC consists of a mixture of tumour cells with wild-type and mutant BRAF. Hence, we examined the association of percentage of BRAFV600E alleles with clinicopathologic parameters at diagnosis and disease ...