Tumor

Articles

• hepatoblastoma
  16 March 2004

  hepatoblastomas
  Definition: Hepatoblastoma is a malignant embryonal liver tumor that occurs almost exclusively in infants and very young children.
  Image
  Macroscopy : https://twitter.com/DraEosina/status/762631086207893506
  Cytology: https://twitter.com/AdamGomezMD/status/720632495671087104
  https://twitter.com/MArnold_PedPath/status/736000944303808512
  Hepatoblastoma is composed of epithelial and mesenchymal elements in varying proportions and at various stages of differentiation. The (...)

• actinic keratosis
  6 July 2004

  solar keratosis, senile keratosis, pre-epitheliomatous keratosis WKP
  Digital cases
  UI:906 - Actinic keratosis.
  UI:917 - Actinic keratosis.
  UI:1826- Actinic keratosis.
  JRC:10567 : Actinic keratosis.
  JRC:10569 : Actinic keratosis.
  Definition: Actinic keratosis is a premalignant condition of thick, scaly, or crusty patches of skin
  It is more common in fair-skinned people and it is associated with those who are frequently exposed to the sun, as it is usually accompanied by (...)

• myopericytoma
  7 February 2006

  myopericytomas; benign myopericytoma
  Definition: Myopericytoma is a benign tumor composed of cells that show apparent differentiation towards putative perivascular myoid cells called myopericytes. Myopericytoma arises most commonly in the dermis or subcutaneous tissue of the extremities in adults.
  Images
  Myopericytoma : circumscribed multilayered growth of short spindle cells around ectatic vessels. SMA (+). https://twitter.com/RyanHickMD/status/795695282843426820
  Myopericytoma (MPC) (...)

• hydatiform mole
  28 April 2004

  molar gestation; hydatiform moles WKP
  Images
  partial hydatiform mole by Ed Euthman
  complete hydatiform mole https://twitter.com/luishcruzc/status/738155933801418752 https://twitter.com/KUSAURAP/status/778827207976230916
  Definition: Hydatiform mole is a gestational trophoblastic disorder.
  Accurate diagnosis and classification of hydatidiform mole (HM) are important because the risk of persistent gestational trophoblastic disease, including choriocarcinoma, is significantly (...)

• colorectal adenoma
  12 May 2004

  colorectal adenomas ; TA/TVA
  Definition: Adenomas, the benign glandular neoplasms that precede colon cancer development, originate from the intestinal epithelium. They occur singly or multiply. When multiple, the patients may have a genetic predisposition syndrome for colorectal cancer.
  See also : colorectal adenoma with adenocarcinoma
  Endoscopy
  Small (< 5 mm) colorectal polyps commonly affect individuals older than 50 years of age and adenomas account for 60% to 66% ofthese small (...)

• nodular lymphocyte predominant Hodgkin lymphoma
  7 December 2004

  NLPHL, nodular lymphocyte predominance Hodgkin’s disease, NLPHD, nodular lymphocyte predominance Hodgkin lymphoma, nodular lymphocyte predominant Hodgkin disease, nodular paragranuloma, Popema paragranuloma PO
  Definition: Nodular lymphocyte predominant Hodgkin lymphoma (NLPHL) is a distinct type of Hodgkin lymphoma (HL) representing approximately 5% of all HL cases. Clinical, morphologic, immunophenotypic, and molecular features set NLPHL apart from other types of HL, the latter (...)

• well-differentiated liposarcoma
  2 March 2004
• pancreatic solid pseudopapillary tumor
  12 November 2003

  PSPPT; solid-pseudopapillary tumor of the pancreas, Frantz tumor, Frantz’s tumor; solid pseudopapillary tumor of the pancreas; ICD-O codes Solid pseudopapillary neoplasm 8452/1, Solid pseudopapillary carcinoma 8452/3; pancreatic solid pseudopapillary tumor; pancreatic solid and pseudopapillary tumor; Solid-pseudopapillary neoplasm of the pancreas PathConsult
  Definition: Solid pseudopapillary neoplasms of the pancreas are rare pancreatic tumors with mostly benign behavior, affecting (...)

• teratoma
  10 March 2004

  teratomas
  Definition: Teratomas are neoplasms comprised of mixed elements derived from the three germ cell layers.
  Images
  Gastric teratoma in a 1yo male
  https://twitter.com/DraEosina/status/817663085376901121
  A teratoma is generally defined as a tumor arising from pluripotent cells, and it is precisely the heterogeneity of tissues present in such a tumor that best characterizes it; it is also commonly accepted that a teratoma must contain derivatives of more than one blastodermic (...)

• thyroid follicular adenoma
  14 December 2005

  Definition: A benign, encapsulated tumour of the thyroid showing evidence of follicular differentiation.
  Images
  Wikimedia : Follicular adenoma
  Digital cases (Digital slides)
  HPC:395 : Thyroid follicular adenoma with papillary epithelial hyperplasia.
  JRC:2612 : Thyroid atypical follicular adenoma, thyroid Spindle cell and follicular neoplasm.
  JRC:14584 : Thyroid follicular adenoma, clear cell type.
  JRC:15430 : Thyroid follicular adenoma (with pseudoclear).
  Follicular adenoma is (...)

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