Tumor

Articles

• pigmented spindle cell nevus
  1 July 2004

  pigmented spindle cell nevus of Reed

• nevus lipomatosus superficialis
  12 January 2006

  naevus lipomatosus superficialis ; nevus lipomatosus cutaneous superficialis, Hoffmann-Zurhelle WKP PO
  Definition: Nevus lipomatosus superficialis (NLS) is a rare benign cutaneous hamartoma characterized by papules and nodules usually in the pelvic and sacral areas, with ectopic mature adipose tissue reaching the superficial dermis.
  Images
  nevus lipomatosus superficialis macroscopical : https://twitter.com/JAADjournals/status/1194333303609925633 (...)

• follicular lymphoma
  20 October 2005

  follicular B-cell lymphoma, follicle centre cell lymphoma; follicular B-cell lymphoma

• 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 (...)

• nodular fasciitis
  13 July 2004

  subcutaneous pseudosarcomatous fibromatosis, proliferative fasciitis. Ent. 1955 WKP PO
  Definition: Nodular fasciitis is a benign proliferation of fibroblasts in the subcutaneous tissues, commonly associated with the deep fascia. Nodular fasciitis is a benign mesenchymal tumor.
  See also : pseudosarcomatous fasciitis and myositis
  Nodular fasciitis (NF) is a relatively common mass-forming and self-limited subcutaneous pseudosarcomatous myofibroblastic proliferation of unknown (...)

• 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 (...)

• melanoma
  13 June 2011

  melanomas ; malignant melanoma
  Localization
  cutaneous melanoma
  non-cutaneous melanomas
  meningeal melanoma
  uveal melanoma
  Images
  Melanoma FNA
  https://twitter.com/Sara_Jiang/status/736239982952747008
  large cell melanoma
  https://twitter.com/JMGardnerMD/status/1459672563571998724
  Appearance
  large cell melanoma
  https://twitter.com/JMGardnerMD/status/1459672563571998724
  fusiform cell melanoma
  Digital cases
  UI:1827 - Cutaneous malignant melanoma, solar damage
  UI:347 - (...)

• angiosarcoma
  23 August 2004

  angiosarcomas
  Definition : Angiosarcoma (AS) is a rare sarcoma subtype showing considerable clinicopathologic and genetic heterogeneity. Most radiation-induced AS show MYC gene amplifications, with a subset of cases harboring KDR, PTPRB, and PLCG1 mutations.
  Angiosarcoma is a rare tumor accounting for less than one percent of all sarcomas. It occurs typically in the skin and soft tissues of the head and neck.
  It is a very malignant neoplastic proliferation arising from vascular (...)

• gastric adenocarcinoma
  22 April 2004

  gastric cancer, gastric carcinomas PO
  Images
  M 14y/o gastric adenocarcinoma with bone metastasis https://twitter.com/Sandro_CZ/status/778725943980417024
  Digital cases
  JRC:10442 : cutaneous metastasis of a gastric adenocarcinoma.
  Etiology
  Gastric cancer is thought to result from a combination of environmental factors and the accumulation of specific genetic alterations due to increasing genetic instability, and consequently affects mainly older patients.
  Microscopical subtypes (...)

• combined nevus
  1 July 2004

  Histopathology:
  symmetric, well circumscribed
  2 or more of the following;
  — common nevus
  — blue nevus or other pigmented dendritic melanocytes
  — Spitz nevus (epithelioid and spindle cell nevus)
  — pigmented spindle and epithelioid cells
  — amelanotic spindle cells
  ordinary nevus component overlies/adjacent to other component
  deep involvement occurs
  plexiform configuration on occasion
  Differential:
  cellular blue nevus
  melanoma
  Return to: melanocytic (...)

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