Thyroid gland

• vascular invasion in thyroid carcinoma
  29 April 2016

  Image
  https://twitter.com/chioseasi/status/723473845181636608

• thyroid medullary carcinoma, spindle cell variant
  11 April 2016

  Images
  Spindle cell medullary carcinoma of the thyroid gland https://twitter.com/HenryTranMD/status/715386908126224384 https://twitter.com/MayaNourieh/status/841955713261936640
  Digital slides
  JRC:2670 : Thyroid medullary carcinoma, spindle cell variant.
  JRC:483 : Thyroid medullary carcinoma with spindle cell features.
  JRC:15401 : Thyroid medullary carcinoma, spindle cell (...)

• oncocytic variant of papillary thyroid carcinoma
  17 March 2016

  Images
  https://twitter.com/CristinaReggen1/status/701903524381077504
  See also
  papillary thyroid carcinoma (PTC)

• indeterminate thyroid nodule
  13 March 2016

  Indeterminate Thyroid Nodules
  Reference
  Utility of Diagnostic Molecular Markers for Evaluation of Indeterminate Thyroid Nodules.
  Smith RB, Ferris RL. JAMA Otolaryngol Head Neck Surg. 2016 Mar 10. doi:10.1001/jamaoto.2016.0142 . PMID: #26967656#

• invasive follicular variant of papillary thyroid carcinoma
  13 March 2016

  non-encapsulated Follicular Variant of Papillary Thyroid Carcinoma, NEFVPTC
  See also
  follicular variant of papillary thyroid carcinoma (FTPC) non-invasive follicular variant of papillary thyroid carcinoma (NIFTPC) (or encapsulated Follicular Variant of Papillary Thyroid Carcinoma, EFVPTC)

• NIFTP
  13 March 2016

  NIFTP: NIFVPTC; non-invasive follicular variant of papillary thyroid carcinoma; EFVPTC; encapsulated papillary thyroid carcinoma follicular variant; encapsulated follicular variant of papillary thyroid carcinoma; Non-invasive follicular thyroid neoplasm with papillary-like nuclear features
  Images
  encapsulated type (EFVPTC)
  https://twitter.com/chioseasi/status/718562378208714752
  Reference digital slides from YR Nikiforov (...)

• well-differentiated thyroid tumor of uncertain malignant potential
  13 March 2016

  Open references
  Cyclin D1 in well differentiated thyroid tumour of uncertain malignant potential. Lamba Saini M, Weynand B, Rahier J, Mourad M, Hamoir M, Marbaix E. Diagn Pathol. 2015 Apr 18;10:32. doi:10.1186/s13000-015-0262-8 . PMID: #25907675# (Free)

• papillary thyroid carcinoma variants
  13 March 2016

  Variants of Papillary Thyroid Carcinoma
  Classically characterized by its papillary appearance, papillary thyroid carcinoma is the most common malignant neoplasm of the thyroid.
  Several variants of papillary carcinoma have been described considering size (microcarcinoma); nature of the tumor boundaries (encapsulated); architecture (follicular, macrofollicular, cribriform-morular, solid, micropapillary); cellular characteristics (tall cell, columnar, oncocytic, clear cell, hobnail); (...)

• encapsulated carcinoma of follicular cell origin
  13 March 2016

  Definition: Encapsulated carcinomas of follicular cell origin include an encapsulated/well-circumscribed (E/WC) follicular variant of papillary carcinoma (FV-PTC) and encapsulated follicular and Hurthle cell carcinoma (EFTC, EHTC respectively).
  FVPTC usually presents as an E/WC tumor and less commonly as an infiltrative neoplasm. E/WC FVPTC rarely metastasizes to lymph nodes, whereas infiltrative tumors often present with cervical nodal metastases.
  Many studies revealed FVPTC in general (...)

• encapsulated papillary thyroid carcinoma
  13 March 2016

  EPTC
  Definition: Encapsulated papillary thyroid carcinoma (EPTC) can have a histologic growth pattern similar to the one seen in classical papillary thyroid carcinoma (PTC) or akin to the follicular variant of PTC (FVPTC). E-CPTC resembles classical PTC in its propensity to metastasize to lymph nodes and its vascular/capsular invasive pattern while E-FVPTC behaves more like follicular carcinoma/adenoma group of tumors.
  Meticulous search for capsular and vascular invasion can reliably (...)

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