Bones

• fibromyxoma of bone
  31 January 2011

  fibromyxoma of bones, myxoma of bone

• epithelioid hemangioma of the bone
  31 January 2011

  epithelioid hemangioma of bones

• myxoid lesions of bone
  31 January 2011

  myxoid lesion of bones

• calcaneal osteosarcoma
  27 January 2011

  calcaneum osteosarcoma, calcaneus osteosarcoma

• osteosarcoma of the foot
  27 January 2011

  The incidence of osteosarcoma of the foot is very low. It appears to affect older patients and the calcaneus is a common site.
  The incidence of chondroblastic tumors is high and most tumors are high grade.
  In many cases, amputation is required for local control of disease.
  References
  Osteosarcoma of the foot: a review of 52 patients at the Mayo Clinic. Choong PF, Qureshi AA, Sim FH, Unni KK. Acta Orthop Scand. 1999 Aug;70(4):361-4.PMID: (...)

• flat bone osteosarcoma
  27 January 2011

  Osteosarcoma of the Flat Bone

• giant cell-rich osteosarcoma
  25 November 2010

  giant cell rich osteoblastic osteosarcoma

• giant cell tumour stromal cell
  25 November 2010

  giant cell tumour stromal cells

• giant cell rich parosteal osteosarcoma
  25 November 2010

  Synopsis
  parosteal osteosarcoma
  large numbers of osteoclast-like giant cells
  fibro-osseous background
  islands of immature bone
  neoplastic bone lacking osteoblastic rimming
  no spatial relationship between the giant cells and areas of haemorrhage
  Cytogenetics
  telomeric associations
  Differential diagnosis
  Parosteal osteosarcoma may, on histological appearances, hardly be recognizable as malignant. In addition, unusual changes such as abundant giant cells may be misleading in (...)

• osseous PEComa
  18 November 2010

  PEComa in bone
  PEComas other than angiomyolipoma, lymphangioleiomyomatosis, and clear cell sugar tumor of the lung are relatively rare, and PEComas presenting in bone are especially rare.
  Both the primary and metastatic PEComas can present in bone, although both are rare.
  It may be suggested that primary PEComa of bone tends to involve lower extremities.
  Histologically, they show similar cytomorphology, nested architecture, and characteristic vessels as PEComas at other sites.
  In (...)

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