Tumor

Articles

• deep-penetrating nevus
  1 July 2004

  plexiform spindle cell nevus

• congenital fibrosarcoma
  25 March 2004

  infantile fibrosarcoma; congenital/infantile fibrosarcoma

• renal oncocytoma
  26 April 2004

  PO
  Images
  macroscopy https://twitter.com/TheUSCAP/status/720607917737521152
  Immunochemistry
  Positive IHC
  CD117+ (c-kit) (71%) (#15105658#)
  Low molecular weight cytokeratin (CK8 / 18, may be dot like)
  CK14 (strong)
  EMA
  - Vimentin (focally positive in 73%)
  CD117 / c-kit (Am J Surg Pathol 2004;28:676)
  E-cadherin
  S100
  Negative IHC
  CK7 (may have intensely positive scattered cells in a background of negative staining cells),
  CK20 (variable)
  CD10 (usually)
  Low (...)

• infantile hemangioma
  11 March 2004

  juvenile hemangioma, cellular hemangioma of infancy, common hemangioma of infancy; GLUT1+ infantile hemangioma
  Digital Cases (Digital slides)
  HPC/106 : GLUT1+ infantile hemangioma
  HPC:186 : GLUT1+ infantile hemangioma
  HPC:385 : GLUT1+ infantile hemangioma
  Clinical synopsis
  The typical infantile hemangioma appears postnataly, grows quickly, and regresses gradually in the first few years of life. Approximately one third of IH are present at birth.
  Infantile hemangiomas progress (...)

• solar lentigo
  5 July 2004

  Differential diagnosis
  lentigo maligna
  lentigo simplex
  freckle
  See also
  melanocytic tumors

• chondromyxoid fibroma
  3 February 2004

  fibromyxoid chondroma of bone
  Definition: Chondromyxoid fibroma (CMF) is a rare benign tumor of the appendicular skeleton of young adults.
  Images
  CHONDROMYXOID FIBROMA. NB: spindle-stellate cells; myxohyaline stroma; coarse basophilic calcification
  https://twitter.com/histiocytosisX/status/752969807960604672
  Chondromyxoid fibroma (CMF) is a benign tumor characterized by lobules of spindle shaped or stellate cells in an abondant myxoid to chondroid stroma. The lobules are separated by (...)

• angioleiomyoma
  20 January

  Images
  Vascular leiomyoma, "Angioleiomyoma"/ H palate. well circumscribed, whorled smooth ms bundles+ thick-walled BV https://twitter.com/yasserdent/status/809090641825300480
  Localization
  cutaneous angioleiomyoma
  dural angioleiomyoma
  palatine angioleiomyoma
  See also
  smooth muscle tumors
  vascular tumors

• diffuse type of giant cell tumor of tendon sheath
  18 February 2004

  pigmented villonodular synovitis; pigmented villonodular tenosynovitis; tenosynovial giant cell tumor, diffuse type; diffuse type of giant-cell tumor of the tendon sheath (GCTTS); tenosynovial giant cell tumor-diffuse type; formerly called pigmented villonodular synovitis (PVNS) when occurs near a joint; giant cell tumor of tendon sheath, diffuse type
  /WP/
  Definition: Diffuse giant cell tumor of tendon sheath (pigmented villonodular synovitis) is an extra-articular, destructive (...)

• desmoplastic small round cell tumor
  26 November 2003

  DSRCT PO
  Definition: Desmoplastic small round cell tumor (DSRCT) is a rare, aggressive, malignant tumor usually present with widespread abdominal serosal involvement. Isolated cases occur in limbs, head and neck, and brain.
  Image
  desmoplastic stroma in desmoplastic small round cell tumor (DSRCT) https://twitter.com/histiocytosisX/status/761299544680247296
  IHC
  CKAE1/AE3+ (dot)
  vimentin+ (dot)
  WT1+ (C-19 clone)
  See also
  tumoral stroma (...)

• thymic adenocarcinoma
  14 June 2006

  Primary thymic adenocarcinomas are extremely rare neoplasms.
  Types
  thymic mucinous adenocarcinoma
  See also
  Tumors thymic tumors
  Carcinomas thymic carcinomas
  Adenocarcinomas
  References
  Ra SH, Fishbein MC, Baruch-Oren T, Shintaku P, Apple SK, Cameron RB, Lai CK. Mucinous adenocarcinomas of the thymus: report of 2 cases and review of the literature. Am J Surg Pathol. 2007 Sep;31(9):1330-6. PMID: (...)

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