ecancermedicalscience

Case Report

A case of Warthin-like papillary thyroid carcinoma with diffuse sclerosing stroma and a novel RET mutation: a new entity or a combined tumour?

2 Oct 2019
Fausto Maffini, Daniele Lorenzini, Daniela Lepanto, Elvio De Fiori, Caterina Fumagalli, Alessandra Rappa, Marta Tagliabue, Massimo Barberis

Activating mutations of the RET gene have been described for both papillary (chromosomal rearrangement) and medullary (missense mutations) thyroid carcinomas. Here, we describe a case of a Warthin-like variant of papillary thyroid carcinoma displaying some morphological aspects that mimic the diffuse sclerosing variant. The tumour harboured BRAF V600E mutation and a novel germline point mutation in the RET gene, with unknown clinical and pathological meaning.

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