Victor Lodovico Fornasier

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PURPOSE Pigmented villonodular synovitis (PVNS) is a rare proliferative process involving synovial membranes. It has a variable course, and while usually benign, may be destructive, resulting in major symptoms and loss of function leading to amputation. Optimum treatment is not always clear, and little information exists with respect to the role of(More)
Circumscribed heterotopic new-bone formation without a history of trauma is termed pseudomalignant myositis ossificans due to the diagnostic confusion of this benign lesion with malignant lesions. In 20 per cent of the published cases in which there were diagnostic problems, the patient underwent a radical procedure. Roentgenographically, pseudomalignant(More)
PURPOSE To retrospectively analyze the long term results of treatment and the patterns of failure for patients with chordoma of the sacrum, base of skull and mobile spine treated predominantly with postoperative photon irradiation. MATERIALS AND METHODS Forty-eight adult patients with chordoma of the sacrum (23), base of skull (20) or mobile spine (5),(More)
Erdheim–Chester disease is a rare xanthomatosis that may present with characteristic radiologic and histologic features. There have been conflicting reports regarding the nature of this process, including whether it represents a reactive or neoplastic lesion. We present the clinical histories, pathologic findings, and an analysis of clonality using the(More)
We reviewed 21 patients more than 16 years old who were seen with a diagnosis of paratesticular sarcoma from 1958 to 1987. Of the patients 14 presented with primary disease and 7 with recurrent disease. The survival of the primarily treated patients was 58% at 5 years, calculated by the product limit method. Of the 14 patients with primary disease 13 had(More)
Mesenchymal chondrosarcoma is a rare, almost uniformally lethal variant of chondrosarcoma which has been regarded as resistant to chemotherapy and radiotherapy. Seventeen cases are reported; 14 are dead of tumor or still alive with disease; eight of the 14 died less than one year after treatment, predominately of distant metastatic disease. This confirms(More)
This study examines the histological effects of different sizes of polyethylene particles implanted into the rabbit tibia. Seventeen mature New Zealand white female rabbits were allocated into three groups. Group 1 (5 rabbits) received polyethylene particles averaging approximately 16 microns in diameter, implanted into the right proximal tibia through a(More)
The use of a polyglycolide lactide cement plug restrictor in cemented femoral fixation during total hip arthroplasty was evaluated. Femoral cement pressurization was evaluated in vitro in a cadaveric model and the host response to polymer degradation was evaluated in vivo in a canine total hip arthroplasty model. Sixteen embalmed anatomic specimen femurs(More)
This study was conducted to evaluate the theory that increased rigidity in the subchondral cancellous bone and trabecular stress fractures are responsible for the development of osteoarthritis. Histological sections of the entire femoral head were examined in 80 normals, 50 cases with early degenerative changes, and 50 cases with advanced osteoarthritis. It(More)
Periosteal chondroma is an uncommon benign cartilagenous lesion, and its importance lies primarily in its characteristic radiographic and pathologic appearance which should be of assistance in the differential diagnosis of eccentric lesions of bones. The pathologist must be aware of this tumour because at a histologic level, it may closely resemble a more(More)