G. Tumoral pathology

• atypical pleomorphic lipomatous tumor
  19 January

  APLT
  Images
  Atypical pleomorphic lipomatous tumor https://twitter.com/Greg_Charville/status/1614617271258824705

• hyalinized stroma
  19 January

  Examples
  hyalinized stroma in tumors In clear cell hidradenoma : https://twitter.com/WebPathology/status/519228103130767361

• pseudoglandular architecture
  19 January

  pseudoglandular pattern
  See also :
  architecture tumoral architecture alveolar architecture

• tumoral formations
  14 January

  tumoral bodies ; tumoral formation
  Examples
  Schiller-Duvall bodies in Yolk sac tumor
  rosettes and pseudorosettes

• tumoral infiltration
  14 January

  Tumoral infiltration by :
  squamoid cells / tumoral squamous epithelial cells https://twitter.com/Fabpath1MD/status/1611462948819443730
  Localization
  bronchial tumoral infiltration
  See also
  cellular infiltration

• poorly-differentiated squamous cell carcinoma
  14 January

  Synopsis
  no / minimal keratinization
  marked nuclear atypia
  may be difficult to establish squamous differentiation
  immunohistochemistry is usually necessary to confirm the diagnosis and to exclude melanoma or sarcoma
  See also
  squamous cell carcinoma (SCC) well-differentiated squamous cell carcinoma poorly-differentiated squamous cell carcinoma

• undifferentiated squamous cell carcinoma
  14 January

  Synopsis
  no keratinization
  immunohistochemistry is usually necessary to confirm the diagnosis and to exclude melanoma or sarcoma
  See also
  squamous cell carcinoma (SCC) well-differentiated squamous cell carcinoma poorly-differentiated squamous cell carcinoma

• moderately-differentiated squamous cell carcinoma
  14 January

  Synopsis
  focal keratinization
  features between well-differentiated squamous cell carcinoma and poorly-differentiated squamous cell carcinoma

• basaloid cell tumors
  14 January

  Localization
  cutaneous basaloid cell tumors

• hyalinizing spindle cell tumor with giant rosettes
  13 January

  Hyalinizing spindle cell tumor with giant rosettes is now recognized to be a morphologic pattern variant of low-grade fibromyxoid sarcoma (LGFMS).
  It has giant rosettes composed of a dense sclerotic collagen center surrounded by vague palisades of tumor cells.
  https://kikoxp.com/posts/12124/public

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