Oncological and functional results of cryosurgical therapy of enchondromas and chondrosarcomas grade 1.

Background And Objectives: Cryosurgery using liquid nitrogen is used as adjuvant treatment after intralesional resection of bone tumours to induce cell death. It is applied to enlarge the oncological margins of resection and to reduce the local recurrence rate. The objective of this study is to analyze the oncological and functional results.

Angiosarcoma with malignant peripheral nerve sheath tumour developing in a patient with klippel-trénaunay-weber syndrome.

Purpose: We discuss the coexistence of Klippel-Trénaunay-Weber syndrome with various malignancies, the possible histogenetic pathways and therapeutic implications.

Patient: We report on a 46-year-old man presenting with increasing pain and swelling of his right lower leg after fracturing his fibula. Since birth he was known as having the uncommon syndrome of Klippel-Trénaunay-Weber of his right lower leg.

Intraosseous schwannoma (neurilemmoma) of the cervical spine.

Purpose: To report on an extremely rare tumour located in the cervical spine, its treatment and result. Review of the literature.

Patient: Case report of a 38-year-old woman with an intraosseous schwannoma of the cervical spine.

The cryosurgical treatment of chondroblastoma of bone: long-term oncologic and functional results.

Background: Chondroblastoma of bone is a rare tumor that occurs most often in the epiphysis or apophysis of long bones. This benign tumor sometimes shows aggressive or malignant behaviour, and rarely metastases occur. Since wide resection often leads to growth impairment, intra-lesional curettage followed by an adjuvant therapy is developed to decrease the negative effects on growth and function without increased recurrence rates.

Cryosurgery in aggressive, benign, and low-grade malignant bone tumours.

Cryosurgery is a method of treatment for various tumours that induces tissue necrosis with ablative intent. It is used in benign, aggressive, and low-grade malignant bone tumours such as chondrosarcoma grade 1. We describe the history of the technique and the issues associated with cryobiology, as well as the indications, technique, complications, and results of cryosurgery.

Was isolation of Veillonella from spinal osteomyelitis possible due to poor tissue perfusion?

From a needle biopsy of the body of the 12th thoracic vertebra in a 74-year-old man with spinal osteomyelitis a Veillonella parvula was isolated. The significance of this bacterium as lactic acid indicator has been considered and discussed. Since this strictly anaerobic bacterium mainly uses lactic acid for energy generation, lactic acid must continuously and sufficiently have been produced in or near to the vertebrate body to permit outgrowth of this bacterium.

Limb salvage in musculoskeletal oncology.

Since the early 1970s, substantial progress in dealing with musculoskeletal tumours has been made, with improvements in surgical skills, radiology, chemotherapy, pathology, and radiotherapy. Nowadays, 70-85% of all malignant tumours are treated by limb salvage, without compromising the oncological result. After many years, the functional result that may be achieved with a limb-saving procedure is becoming clear.

Chondrosarcoma of bone: functional outcome and quality of life.

Background And Objectives: Outcome studies of chondrosarcoma have so far only reported oncological and functional results. Quality-of-life assessment becomes more important because more long-term survival after treatment of malignant diseases occur. The objective of this study is to analyze functional outcome and quality of life.

Oncologic and functional results after treatment of giant cell tumors of bone.

Surgical treatment of giant cell tumor of bone has always been a difficult problem because of its local aggressive behavior. Oncologic results and functional outcome are reported here in a retrospective study of 36 patients, treated by various surgical procedures. The average age at the time of diagnosis was 34 years, and the median follow-up period was 7 years.

Fibrous dysplasia of bone: management and outcome of 20 cases.

Background And Objectives: Fibrous dysplasia of bone is difficult to manage because of its variable clinical course with many different methods of treatment reported. Therefore we report on our experience.

Methods: We reviewed a series of 20 patients with 32 lesions included.

The saddle prosthesis in pelvic primary and secondary musculoskeletal tumors: functional results at several postoperative intervals.

The first purpose of this study was to evaluate the saddle prosthesis in patients with periacetabular tumors in terms of the functional results obtained after several postoperative intervals. The second purpose was to evaluate the complications and how they might be prevented in the future. Functional results according to the MSTS functional rating system were evaluated at several postoperative intervals in 15 patients treated with internal hemipelvectomy and reconstruction with the saddle prosthesis because of periacetabular primary (n = 9) or secondary (n = 6) malignancies.

Diffuse and localized pigmented villonodular synovitis: evaluation of treatment of 38 patients.

We performed a retrospective study of 38 patients with pigmented villonodular synovitis (PVNS) to evaluate the treatment and functional results. The mean age of the patients was 32 (range 12-72) years at the time of treatment. Three types of PVNS have been identified: localized nodules in 9 patients, diffuse PVNS of the entire synovial membrane in 26, a combination of a diffuse involvement of the synovial membrane and an extra-articular presentation in 1, and extra-articular lesions in 2.

Osteosarcoma: oncologic and functional results. A single institutional report covering 22 years.

Background And Objectives: The oncologic and functional results in patients treated because of osteosarcoma (OS) were evaluated.

Methods: Fifty-one patients with high-grade OS were treated between 1974 and 1996 at our hospital. All patient records were studied, and the surviving patients were evaluated according to the American Musculoskeletal Tumor Society functional rating system.

Intraoperative lymphatic mapping and the sentinel node concept in colorectal carcinoma.

Background: Orderly progression of nodal metastases has been described for melanoma and breast cancer. The first draining lymph node, the sentinel node, is also the first to contain metastases and accurately predicts nodal status. The aim of this study was to assess the feasibility of lymphatic mapping and sentinel node biopsy in colorectal cancer.

Ring chromosomes in a malignant mesenchymoma.

We report, for the first time, the cytogenetic and molecular genetic constitution of a human mesenchymoma. As in several other soft tissue sarcomas, supernumerary ring and rod-shaped marker chromosomes were observed next to an otherwise normal diploid karyotype. Comparative genomic in situ hybridization and whole chromosome painting experiments revealed that chromosome 1q21-q25 and 12q14-q15 sequences were amplified, and that these sequences resided on the supernumerary marker chromosomes.

Eosinophilic granuloma of bone: results of treatment with curettage, cryosurgery, and bone grafting.

Intralesional instillation of steroids is currently the first choice of treatment for eosinophilic granuloma of bone. However, some lesions fail to respond or are unsuitable for injection therapy due location, pending pathologic fracture, and soft tissue intrusion. The authors treated six patients with these lesion characteristics using curettage, cryosurgery, and bone grafting.

Malignant fibrous histiocytoma of the stomach during pregnancy: a case report.

In this case report we describe a patient with a primary malignant fibrous histiocytoma of the stomach, diagnosed and operated upon during the sixth month of pregnancy. We stress the importance of a thorough diagnostic examination in cases of severe anaemia during pregnancy. Although very rare, malignancy of the gastrointestinal tract should be taken in consideration.

Treatment of benign and low-grade malignant intramedullary chondroid tumours with curettage and cryosurgery.

Aims: To shed light on the controversy surrounding the methods of evaluating, staging and final treatment of intramedullary chondroid lesions. Controversy particularly exists for enchondroma and low-grade chondrosarcoma located in the extremities, because their accurate distinction is hampered by their radiographical and histological similarity.

Methods: Since 1991 we have treated 22 patients (mean age: 39.

Synovial sarcoma: oncological and functional results.

Aim: To evaluate the oncological and functional result of the treatment of patients with a synovial sarcoma. This paper gives a retrospective review of 20 patients (15 male and five female) treated for synovial sarcoma at the Nijmegen University Hospital, The Netherlands.

Methods: The median age of the patients was 30 years (range: 14-71, mean 37 years).

Isolation of osteosarcoma-associated amplified DNA sequences using representational difference analysis.

Comparative genomic hybridization analysis of a primary osteosarcoma and its metastasis revealed two regions of DNA amplification, one at 17p11.2-12 and one at 19q12-13. Subsequent representational difference analysis of the primary tumor resulted in the isolation of two distinct tumor-amplified DNA fragments originating from chromosome 19.

Lipomatous hypertrophy of the interatrial septum: indication for surgery?

A fortuitous finding during open heart surgery of lipomatous hypertrophy of the interatrial septum is described in a 65-year old man with ischaemic heart complaints due to coronary artery disease and with premature ventricular contractions. An incision biopsy confirmed the diagnosis. The choice of treatment of lipomatous hypertrophy of the interatrial septum is controversial.

Aneurysmal bone cysts treated by curettage, cryotherapy and bone grafting.

We treated 26 patients with 27 aneurysmal bone cysts by curettage and cryotherapy and evaluated local tumour control, complications and functional outcome. The mean follow-up time was 47 months (19 to 154). There was local recurrence in one patient.