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  • anaplastic thyroi
  • There are four main types - papillary thyroid cancer, follicular thyroid cancer, medullary thyroid cancer, and anaplastic thyroid cancer. (wikipedia.org)
  • Poorly differentiated thyroid cancer Anaplastic thyroid cancer (less than 5% of cases) is not responsive to treatment and can cause pressure symptoms. (wikipedia.org)
  • It can be a benign tumor such as thyroid adenoma, or it can be a malignant neoplasm (thyroid cancer), such as papillary, follicular, medullary or anaplastic thyroid cancer. (wikipedia.org)
  • Thyroid cancers are mainly papillary, follicular, medullary or anaplastic thyroid cancer. (wikipedia.org)
  • Painless neck mass Hoarseness Dysphagia Signs of tracheal compression Thyroid lymphoma shows a diagnostic and therapeutic challenge in many cases, because some manifestation patterns are similar to anaplastic thyroid cancer (ATC). (wikipedia.org)
  • Anaplastic thyroid cancer (ATC) is a form of thyroid cancer which has a very poor prognosis due to its aggressive behavior and resistance to cancer treatments. (wikipedia.org)
  • The overall 5-year survival rate of anaplastic thyroid cancer has been given as 7% or 14%, although the latter has been criticized as being overestimated. (wikipedia.org)
  • Unlike its differentiated counterparts, anaplastic thyroid cancer is highly unlikely to be curable either by surgery or by any other treatment modality, and is in fact usually unresectable due to its high propensity for invading surrounding tissues. (wikipedia.org)
  • papillary
  • The following variants can be distinguished (distribution over various subtypes may show regional variation): Papillary thyroid cancer (75% to 85% of cases) - often in young females - excellent prognosis. (wikipedia.org)
  • Newly reclassified variant: noninvasive follicular thyroid neoplasm with papillary-like nuclear features is considered an indolent tumor of limited biologic potential. (wikipedia.org)
  • The role of external beam radiotherapy (EBRT) in thyroid cancer remains controversial and there is no level I evidence to recommend its use in the setting of differentiated thyroid cancers such as papillary and follicular carcinomas. (wikipedia.org)
  • THYROTOXICOSIS
  • According to newer theories, thyroid storm results from allostatic failure in a situation were thyrotoxicosis hampers the development of non-thyroidal illness syndrome, which would help to save energy in critical illness and other situations of high metabolic demand. (wikipedia.org)
  • In cases, where critical illness is accompanied by thyrotoxicosis, this comorbidity prevents the down-regulation of thyroid function. (wikipedia.org)