Follicular thyroid cancer diagnostic study of choice: Difference between revisions

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===Staging<ref> Stage Information for Thyroid Cancer Cancer.gov
===Staging<ref name="urlThyroid Cancer Treatment (Adult) (PDQ®)–Health Professional Version - National Cancer Institute">{{cite web |url=https://www.cancer.gov/types/thyroid/hp/thyroid-treatment-pdq#_441_toc |title=Thyroid Cancer Treatment (Adult) (PDQ®)–Health Professional Version - National Cancer Institute |format= |work= |accessdate=}}</ref>===
(2015). http://www.cancer.gov/types/thyroid/hp/thyroid-treatment-pdq#link/stoc_h2_2- Accessed on October, 29 2015</ref>===
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| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" colspan=4 align=center| '''Papillary thyroid carcinoma'''
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" colspan=4 align=center| '''Follicular thyroid carcinoma'''
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| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" colspan=4 | '''YOUNGER THAN 55 YEARS'''
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" colspan=4 | '''YOUNGER THAN 55 YEARS'''

Revision as of 21:29, 14 August 2019

Follicular thyroid cancer Microchapters

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Differentiating Follicular thyroid cancer from other Diseases

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Diagnostic Study of Choice

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ammu Susheela, M.D. [2]

Overview

Biopsy is the gold standard for diagnosing thyroid cancer. According to the American Joint Committee on Cancer (AJCC), there are 4 stages of follicular thyroid cancer based on the clinical features and findings on imaging. Each stage is assigned a letter and a number that designate the tumor size, number of lymph node regions involved, and metastasis.

Diagnostic Study of Choice

Study of Choice

1. Fine Needle Aspiration Biopsy (FNAC)

2. Surgical Biopsy

  • Surgical biopsy is the removal of the thyroid nodule or one lobe of the thyroid during surgery.
  • On microscopic examination, trabecular follicular tumor cells that invade tumor capsule or surrounding vascular structures, are found.

Images of Biopsy Specimen

Staging[4]


Primary tumor
Tumor size Sub-stage Finding Image
T0
  • No evidence of primary tumor
T1
T1 a
T1 b
  • Tumor >1 cm but ≤2 cm in greatest dimension, limited to the thyroid
T2
  • Tumor >2 cm but ≤4 cm in greatest dimension, limited to the thyroid
T3
  • Tumor >4 cm limited to the thyroid, or gross extrathyroidal extension invading only strap muscles
T3 a
T3 b
T4
  • Tumor includes gross extrathyroidal extension beyond the strap muscles
T4 a
T4 b
TX
  • Primary tumor cannot be assessed
Regional lymph node involvement
Node involvement Sub-stage Finding Image
N0
N0 a
N0 b
N1
N1 a
N1 b
NX
Distant metastasis
Presence of metastasis Sub-stage Finding Image
M0
M1 IV


Anatomic Stage/Prognostic Groups
Stage T N M
Follicular thyroid carcinoma
YOUNGER THAN 55 YEARS
I Any T Any N M0
II Any T Any N M1
55 YEARS AND OLDER
I T1 Any N M0
II T1 N1 M0
T2 N1 M0
T3a Any N M0
T3b Any N M0
III T4a Any N M0
IVA T4b Any N M0
IVB Any T Any N M1
T1 N1 M0
T2 N1 M0
T3a N1 M0
T3b Any N M0
T4 Any N M0
IVC Any T Any N M1

Reference

  1. https://www.cancer.org/cancer/thyroid-cancer/detection-diagnosis-staging/how-diagnosed.html. Missing or empty |title= (help)
  2. http://librepathology.org/wiki/index.php/File:Metastatic_follicular_thyroid_carcinoma_-_Case_264_(8558730243).jpg Accessed on October, 29 2015
  3. http://librepathology.org/wiki/index.php/File:Metastatic_follicular_thyroid_carcinoma_-_Case_264_(8559837390).jpg Accessed on October, 29 2015
  4. "Thyroid Cancer Treatment (Adult) (PDQ®)–Health Professional Version - National Cancer Institute".