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Osteoblastoclastoma

Osteoblastoclastoma (giant-cell tumor) — the semi-malignant tumor which is often recrudescing: expansive growth, and sometimes metastasises. Distinguish lytic and cellular and trabecular forms, some surgeons allocate with a third more, mixed. The osteoblastoclastoma meets both in children's, and at youthful and middle age. Quite often at children it proceeds asymptomatically and often it is found out when there was already a pathological change on site of the available tumor.                              
It is more often localized in an upper metaphysis of a humeral bone, the lower metaphysis of a hip, fibular bone etc.
The first signs proceed imperceptibly. In 2 — 3 months appear a swelling with insignificant local morbidity, a local skin hyperemia. During the thinning and perforation of a cortical layer during a palpation of a swelling the sound reminding a crash of parchment paper can be heard. Pathological fractures of a bone on site of a tumor are characteristic.
Radiological the porosity, pseudocystic enlightenments reminding "soap bubbles" are defined.
Macroscopically tumoral fabric fleshy, has a motley appearance owing to the hemorrhagic centers or a brown shade of loss of hemosiderin.
Surgical treatment is divided on palliative (a cavity ekskokhleation with the subsequent filling with its bone transplants), radical (a tumor resection with substitution by a transplant or without it) and amputation. Indications to this or that intervention are put according to localization, morphological and clinical activity of development of a tumor. Tumors make Ekskokhleation only at a high-quality form. Carry out a segmented resection of the corresponding bone with substitution by a bone transplant more often. The roentgenotherapy has limited indications and generally concerns the osteoblastoclastoma affecting a backbone. Before a roentgenotherapy it is necessary to make a biopsy.

 
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