Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-6-24
pubmed:abstractText
Anaplastic thyroid carcinoma may represent the ultimate dedifferentiation step of thyroid tumorigenesis and is one of the poorest cancers in human. It accounts for less than 2% of thyroid cancers and affects older patients in their sixth to eighth decade. Usual clinical presentation is a rapidly growing thyroid mass invading surrounding structures with compressive symptoms. Cervical lymph nodes enlargement and distant metastases occur frequently. Though cytological results obtained by fine needle aspiration may be suggestive of diagnosis, tissue biopsy for immunohistochemical study can be necessary to exclude lymphoma and to validate aggressive therapies. Patients developing anaplastic thyroid cancer must be referred urgently in cancer centers to plan multimodality therapeutic approach depending on their performance status. The treatment regimen combines surgery when feasible, hyperfractionated and accelerated external beam radiotherapy and doxorubicin based chemotherapy. Such treatment can provide control of locoregional disease but does not impact on overall survival in patients with distant metastases. The prognosis is dismal with a mean survival of four to nine months after diagnosis. Long survivors are patients with emerging disease presenting a resectable tumor and receiving adjuvant radiotherapy and/or chemotherapy. Therapeutic researches investigate redifferenciation strategies and targeted therapies to inhibit EGF receptors and neoplastic angiogenesis. Primary prevention of this lethal disease may consist of adequate treatment of differentiated thyroid cancers and goiters in elderly.
pubmed:language
fre
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0003-4266
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
174-80
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
[Anaplastic thyroid carcinoma].
pubmed:affiliation
Service d'endocrinologie, maladies métaboliques, clinique endocrinologique Marc-Linquette, CHRU de Lille, 6, rue du Professeur-Laguesse, 59037 Lille cedex, France. jl-wemeau@chru-lille.fr
pubmed:publicationType
Journal Article, English Abstract