[Giant cell tumor--osteoclastoma: part II].

Authors present current views on the comprehensive diagnostics, treatment and prognosis of giant cell tumours. They include an exact algorithm of diagnostics necessary for a timely treatment. They describe an often unexpected behaviour of these tumours which is frequently active and aggressive, to a small extent these tumours show the tendency to become malignant.

[Our Strategy of the Treatment of Giant-cell Tumours Part I - Strategy.].

The authors present a treatment procedure in giant-cell tumours of limbs applied in the recent three years at Ist Orthopaedic Clinic in Bratislava. The procedure begins with cytologic verification (in most cases within one stage procedure by peroperative cytologic examination) followed by careful curretage of the lesion, irrigation by liquid non-diluted solution of phenol, irrigation with pure 96% ethylalcohol, irrigation with physiological solution, filling with bone cement. In the methodological part of the contribution the authors discuss toxicity of phenol and risks of this treatment which they confront with the existing data in the literature.

[Primary intraosseous liposarcoma - case report.].

Primary intraosseous liposarcoma belongs to exceptional tumors rarely found on the sceleton. There are only several tens of cases described in literature and they are published as case reports. Because there is not enough experience, especially with diagnostics of this illness, it happens that it is considered as malignant fibrous histiocytoma, malignant mesenchymoma or with secondary infiltration of liposarcoma of soft tissue into the bone.