Tumoral subtypes

Articles

• uterine endometrioid adenocarcinoma, FIGO grade 1
  25 November 2010

  type 1 endometrial carcinoma
  Definition: Relatively indolent tumors that arise in background of endometrial hyperplasia.
  According to one definition, when endometrial glands show a confluent pattern occupying at least 2x2 mm focus, the diagnosis of adenocarcinoma can be made. Smaller foci are labeled "complex endometrial hyperplasia".
  The diagnosis of endometrioid adenocarcinoma can also be made if there is extensive papillary pattern or infiltrative glands with desmoplastic response. (...)

• plexiform schwannoma
  14 September 2005

  plexiform cellular schwannoma

• epithelioid inflammatory myofibroblastic sarcoma
  13 January 2017

  EIMS
  Molecular pathology
  ALK-RANBP2 fusion gene, fusing ALK and RANBP2
  Other ALK rearrangements
  Open references
  Epithelioid inflammatory myofibroblastic sarcoma: a clinicopathological, immunohistochemical and molecular cytogenetic analysis of five additional cases and review of the literature. Yu L, Liu J, Lao IW, Luo Z, Wang J. Diagn Pathol. 2016 Jul 27;11(1):67. doi:10.1186/s13000-016-0517-z.
  PMID: #27460384# Free
  A case report of epithelioid inflammatory myofibroblastic (...)

• soft tissue perineurioma
  14 September 2005

  Perineuriomas are uncommon benign peripheral nerve sheath tumors that include soft tissue, sclerosing, and intraneural variants.
  Perineuriomas are rare tumors of the peripheral nerve sheath that share some characteristics with meningioma.
  Synopsis
  age: mean age, 46 years; range, 10-79 years
  tumor size: from 0.3 to 20 cm (mean, 4.1 cm)
  anatomic distribution: lower limb, upper limb, trunk, head and neck, retroperitoneum, paratesticular
  subcutis, deep soft tissue, limited to the (...)

• nodular sclerosing Hodgkin lymphoma
  2 September 2004

  nodular sclerosing classic Hodgkin disease; classical Hodgkin lymphoma, scleronodular type

• chondroblastic osteosarcoma
  26 May 2009

  Digital cases
  Case 115 : Chondroblastic osteosarcoma of the calcaneum
  Definition : Chondroblastic osteosarcoma (OS) accounts for about 25% of all cases of OS.
  Localization
  flat bones
  temporal bone (#20730902#)
  Macroscopy
  Grossly, an overt chondroid appearance is rare. This is probably secondary to the cartilage component being less well-formed, high grade, and mixing with non-chondroid elements resulting in a lack of large areas of pure chondroid differentiation and its attendant (...)

• thymoma type B1
  7 October 2010

  lymphocyte-rich thymoma
  Definition: Type B1 thymoma closely resembles normal thymus cytologically and architecturally. It is usually an encapsulated mass with fibrous bands (seen here) separating it into nodules or lobules. It has areas resembling normal thymic cortex which are composed of scattered epithelial cells in a dense background of immature T-cells. Foci of medullary differentiation (seen here as lighter areas) with or without Hassall’s corpuscles are always present.
  Given the (...)

• oncocytic mucoepidermoid carcinoma
  4 November 2008

  Mucoepidermoid carcinoma (MEC) is the most common salivary gland malignancy. Oncocytic MEC (OMEC) has been rarely reported with previous cases suggesting they are largely cystic low-grade neoplasms with a favorable prognosis.
  The differential diagnosis of OMEC includes numerous oncocytic/"oncocytoid" neoplasms. Some are benign while others are aggressive.
  Synopsis
  sex ratio 1/1
  age range : 30 to 79 years
  localization: parotid, sublingual gland, hard palate and neck.
  minimal cystic (...)

• lentigo maligna melanoma
  21 February 2005

  lentigo maligna; Dubreuilh melanosis
  Images
  lentigo maligna; Dubreuilh melanosis
  https://twitter.com/phmckee1948/status/845930300349788161
  starburst giant cell in lentigo maligna melanoma
  https://twitter.com/NimaArdakaniMD/status/830282684765069312
  Atypical cells in lentigo maligna intraepidermic melanoma v small regular cells of dermal nevus
  https://twitter.com/Tenonhospital/status/854393704504848384
  Webpathology : https://www.webpathology.com/image.asp?n=67&Case=704 (...)

• juvenile ossifying fibroma
  2 June 2010

  definition: Juvenile ossifying fibroma (JOF) is an uncommon fibro-osseous lesion occurring in the facial bones. It is highly aggressive and has a strong tendency to recur. It has been recognized as a separate histopathological entity among the fibro-osseous group of lesions. Surgical resection is the preferred line of treatment.
  Juvenile ossifying fibroma (JOF) is a fibro-osseous lesion that occurs in the facial bones. It is also called aggressive ossifying fibroma due to its (...)

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