Cribiform variant of papillary thyroid cancer and familial adenomatous polyposis

BACKGROUND: Familial adenomatous polyposis (FAP) is an autosomal dominant cancer predisposition syndrome characterised by the progressive development of multiple colorectal adenomatous polyps and an increased incidence of colorectal carcinoma. It is often accompanied by other benign or malignant ext...

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Bibliographic Details
Authors: Perea del Pozo, E., Ramírez Plaza, C., Padillo Ruiz, Francisco Javier, Martos Martínez, Juan Manuel
Format: article
Status:Published version
Publication Date:2015
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/156237
Online Access:https://hdl.handle.net/11441/156237
https://doi.org/10.1016/j.ijscr.2015.08.013
Access Level:Open access
Keyword:Familial
Polyposis
Papillary
Cribiform
Thyroid
Description
Summary:BACKGROUND: Familial adenomatous polyposis (FAP) is an autosomal dominant cancer predisposition syndrome characterised by the progressive development of multiple colorectal adenomatous polyps and an increased incidence of colorectal carcinoma. It is often accompanied by other benign or malignant extracolonic manifestations, including gastric and duodenal tumours, osteomas, desmoid tumours, retinal pigmentation, and thyroid and adrenocortical tumours METHODS AND RESULTS: We report the case of a 42-year-old white female with FAP who was referred to our Endocrine Surgery Unit for surgery because of a palpable mass in the left side of the neck. An ultrasound-guided fine needle aspiration biopsy showed a cribriform-morular variant (CMV) of papillary thyroid carcinoma (PTC). The incidence, clinical presentation, histology and treatment options for this rare histological subtype are discussed. CONCLUSIONS: The diagnosis of CMV of PTC is very strongly related to the FAP syndrome and must be suspected when a thyroid node appears in FAP patients. Likewise, any patient without known FAP who presents this histology in a surgically biopsied or resected thyroid node should undergo total colonoscopy for screening of colonic polyposis and genetic study of the APC gene sequence.