Tumor

Articles

• 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 (...)

• papillary thyroid carcinoma
  15 March 2004

  TPC; PTC; thyroid papillary carcinoma
  Types
  classic PTC / classic papillary thyroid carcinoma
  FV-PTC / follicular variant of papillary thyroid carcinoma
  IFV-PTC / infiltrative FV-PTC
  EFV-PTV / encapsulated FV-PTC
  IEFV-PTC / invasive encapsulated FV-PTC
  NIEFV-PTC / non-invasive encapsulated FV-PTC
  Images
  typical papillary thyroid carcinoma
  https://twitter.com/nisspath/status/695415489837674496
  FNA of papillary thyroid carcinoma (...)

• 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 (...)

• pleuropulmonary blastoma
  13 November 2003

  pediatric pneumoblastoma, pulmonary blastoma of childhhod, PPB
  Definition: Pleuropulmonary blastoma (PPB) is a rare malignant mesenchymal tumor of lung parenchyma and/or pleura in young children.
  Pleuropulmonary blastoma is an aggressive tumor characterized by mesenchymal elements (including undifferentiated blastema and often cartilaginous, rhabdomyoblastic, or fibroblastic differentiation) and epithelium-lined spaces.
  Images
  Pleuropulmonary blastoma (PPB) (...)

• mammary fibroadenoma
  18 January 2005

  breast fibroadenoma, Benign cystosarcoma phyllodes, Cellular fibroadenoma, Cellular adenofibroma, Fetal fibroadenoma, Juvenile adenofibroma; mammary fibroadenoma PO Webpathology BP
  Definition : The mammary fibroadenoma is a benign mammary biphasic tumor with epithelial and stromal components.
  It is a benign breast lesion that result from hyperplasia of the normal lobules.
  It is a circumscribed, often large, breast mass usually occuring in adolescent females with stromal and (...)

• osteoblastoma
  11 February 2004

  Digital cases
  HPC:79 : Osteoblastoma
  HPC:147 : Osteoblastoma
  Definition: An osteoblastoma is a rare solitary, benign, osteoid- and bone-forming neoplasm that contains many well-differentiated osteoblasts and osteoclasts, and usually has a vascular stroma.
  Clinical synopsis
  Osteoblastomas predominantly affect young adults and are often painful.
  Swelling and tenderness are usually the symptoms that prompt the patient to seek medical attention.
  "Toxic" cases - A few patients with (...)

• progressive transformation of germinal centers
  15 December 2003

  PTGC, progressive transformation of germinal center

• 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 (...)

• malignant peripheral nerve sheath tumor
  15 December 2003

  MPNST, malignant schwannoma PO
  Definition: Malignant tumor arising from peripheral nervous tissue or showing nerve sheath differenciation.
  Digital cases
  JRC:8437 : Malignant peripheral nerve sheath tumor.
  JRC:8443 : Malignant peripheral nerve sheath tumor (sciatic nerve).
  JRC:8447 : Malignant peripheral nerve sheath tumor.
  JRC:8450 : Malignant peripheral nerve sheath tumor.
  JRC:8824 : Malignant peripheral nerve sheath tumor (oral cavity).
  JRC:7954 : Malignant peripheral (...)

• colorectal adenoma
  12 May 2004

  colorectal adenomas
  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 lesions. (...)

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