Tumor

Articles

• progressive transformation of germinal centers
  15 December 2003

  PTGC, progressive transformation of germinal center

• 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 (...)

• clear cell sarcoma of the kidney
  14 July 2004, by JA

  CCSK, renal clear cell sarcoma; bone-metastasizing renal tumour of childhood AGCOH PathConsult eMedicine
  Digital slides
  Case 66 (HPC:66) : Clear cell sarcoma of the kidney (CCSK)
  Definition: Clear cell sarcoma of the kidney (CCSK) is a malignant renal tumor of childhood with a propensity to metastasize to bone and other organs. CCSK is linked to internal tandem duplications (ITDs) of the BCOR gene.
  This tumor may also recur many years after its initial diagnosis. The average age (...)

• hydatiform mole
  28 April 2004

  molar gestation; hydatiform moles
  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 higher (...)

• 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 (...)

• 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 (...)

• 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 (...)

• 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 (...)

• myxoid/round cell liposarcoma
  7 October 2005

  myxoid liposarcoma and round cell liposarcoma group; MRC-LPS
  Definition: Myxoid and round cell liposarcoma accounts for about 30% to 35% of all liposarcomas and, even if still classified by the World Health Organization (WHO) as 2 distinct subtypes, share both clinical and morphologic features.
  See also :
  myxoid liposarcoma
  round cell liposarcoma
  Lesions combining both patterns are frequent and wide agreement exists in considering round cell liposarcoma as the high grade counterpart (...)

• salivary mucoepidermoid carcinoma
  8 March 2004

  salivary gland mucoepidermoid carcinoma PO WKP WP
  Definition: The mucoepidermoid carcinoma is the most common malignant neoplasm observed in the major and minor salivary glands.
  Mucoepidermoid carcinoma is the most common adult salivary malignancy. It histologically is non-encapsulated and shows three cell types - squamous, mucous and intermediate, and may show prominent oncocytic change. It is associated with t(11;19) fusing MECT1 and MAML2 (MAML2-MECT1 fusion gene).
  Images
  Small (...)

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