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Articles

• diffuse large B-cell lymphoma
  23 September 2003

  DLBCL
  Definition: Diffuse large B-cell lymphoma (DLBCL) is a heterogeneous disease with recognized variability in clinical outcome, genetic features, and cells of origin.
  2 main types :
  Germinal Center B-Cell like DLBCL / GCB-DLBCL
  Activated B-cell like DLBCL / ABC-DLBCL
  The greatest difference resided between distinct populations of germinal centre (GC) cell tumours; the first being CD10-, Bcl-6+, MUM-1- and the second CD10+ Bcl-6+ MUM-1+. The former group displayed median (...)

• nodular lymphocyte predominant Hodgkin lymphoma
  7 December 2004

  NLPHL, nodular lymphocyte predominance Hodgkin’s disease, NLPHD, nodular lymphocyte predominance Hodgkin lymphoma, nodular lymphocyte predominant Hodgkin disease, nodular paragranuloma, Popema paragranuloma PO
  Definition: Nodular lymphocyte predominant Hodgkin lymphoma (NLPHL) is a distinct type of Hodgkin lymphoma (HL) representing approximately 5% of all HL cases. Clinical, morphologic, immunophenotypic, and molecular features set NLPHL apart from other types of HL, the latter (...)

• mixed gonadal dysgenesis
  22 December 2005

  asymmetric gonadal dysgenesis; 46,XY disorders of sex development

• parathyroid tumors
  27 April 2004

  Images
  parathyroid carcinoma
  https://twitter.com/AdamGomezMD/status/695688052711116800
  https://twitter.com/aakasharmand/status/737983217077256192
  Digital cases
  JRC:15047 : Parathyroid adenoma, with bizarre cells
  JRC:18765 : Parathyroid carcinoma
  JRC:9410 : Parathyroid carcinoma
  Types
  parathyroid hyperplasia
  parathyroid adenoma
  parathyroid carcinoma
  Synopsis
  parathyroid carcinoma
  increased mitoses
  vascular invasion
  broad bands of fibrosis
  Molecular biology (...)

• cutaneous leiomyosarcoma
  2 February 2010

  See : atypical intradermal smooth muscle neoplasm (AISMN)
  Digital case
  JRC:110 : Leiomyosarcoma of the skin.
  Images
  Dermal spindle cell neoplasm with giant cells SMA+ consistent with cutaneous leiomyosarcoma https://twitter.com/DrRMalliah/status/745600532270690304
  See also
  cutaneous leiomyoma
  References
  Primary cutaneous leiomyosarcoma: clinicopathological analysis of 36 cases. Massi D, Franchi A, Alos L, Cook M, Di Palma S, Enguita AB, Ferrara G, Kazakov DV, Mentzel T, Michal (...)

• ovarian mature cystic teratoma
  29 October 2004

  mature cystic teratoma of the ovary; OMCT, MCTO
  Definition: Mature cystic teratomas (MCTs) of the ovary are typically composed of a cyst lined with neoplastic tumor cells recapitulating ectodermal differentiation including derivatives such as epidermis, dermis, and appendages (sebaceous glands), although mesodermal and endodermal derivatives can also be seen.
  Images
  Teeth in Rokitansky protuberance, in mature cystic teratoma ovary (...)

• botryoid rhabdomyosarcoma
  26 October 2007

  botryoid embryonal rhabdomyosarcoma, embryonal botryoid embryonal rhabdomyosarcoma

• ovarian serous tumors
  23 August 2004

  Serous Ovarian Tumors
  Digital case
  JRC:8985 : Ovarian serous cystadenocarcinoma.
  Images
  ovarian serous borderline cystadenoma https://twitter.com/colbycantu5/status/727456294165204992
  Classification
  ovarian serous cystadenoma
  ovarian serous cystadenofibroma
  ovarian serous borderline cystadenoma
  ovarian serous adenocarcinoma
  ovarian papillary serous carcinoma
  Links
  Webpathology
  References
  Lymph Node Involvement in Ovarian Serous Tumors of Low Malignant Potential: A (...)

• rhinopharyngeal embryonal rhabdomyosarcoma
  18 March 2008

  embryonal rhabdomyosarcoma of the nasophraynx

• pilonidal sinus
  5 January 2005

  Digital cases
  Case 268 : Caudal pilonidal sinus with nervous tissue
  Variants
  pilonidal sinus cyst
  pilonidal sinus with nervous tissue

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