External and internal hemipelvectomy: A retrospective analysis of 68 cases.

Objectives: This study aims to investigate the factors that may be associated with surgical site infection and mortality in pelvic resection surgeries.

Patients And Methods: A total of 68 patients (40 males, 28 females; mean age: 43±16.2 years; range, 11 to 70 years) who underwent internal or external hemipelvectomy between January 2010 and January 2020 were retrospectively analyzed.

Parosteal lipoma as a rare cause of peripheral neuropathy and local irritation: A report of 12 cases.

Objective: The aim of this study was to evaluate the clinical features and functional results of patients with parosteal lipomas.

Methods: A total of 12 patients (8 females and 4 males; mean age: 45 (10-62) years) with parosteal lipomas who were treated between April 1986 and April 2014, were included into the study. The medical records of the patients were reviewed to analyze the clinical features and functional results of the patients.

Malignant triton tumor of the gluteal region in a patient unaffected by neurofibromatosis: A case report.

Malignant triton tumor (MTT) is a rare variant of malignant peripheral nerve sheath tumor (MPNST) made up of both malignant schwannoma cells and malignant rhabdomyoblasts. A 26-years-old male patient was admitted with an asymptomatic gluteal mass. Magnetic resonance imaging showed heterogeneous soft tissue mass and he underwent open biopsy.

Chemotherapy in primary osteogenic sarcoma in patients over the age of forty.

Objective: In this study, we sought to review the clinical and histopathological features and the chemotherapy regimens in osteogenic sarcoma in patients over 40 years of age, and we aimed at identifying the possible prognostic factors in this particular group of patients.

Methods: We reviewed 287 patients with osteosarcoma treated between the year 1986 and 2010. Patients from this group who met the following criteria were considered eligible for our study; presence of primary OS, had typical histological and radiographic features of OS, no prior history of cancer or any treatment elsewhere and no prior history of preexisting bone abnormalities.

Primary malignant fibrous histiocytoma of long bones: long-term follow-up.

Objectives: This study aims to evaluate patients diagnosed with malignant fibrous histiocytoma and investigate the possible prognostic factors associated with duration of survival.

Patients And Methods: The study, which was conducted between May 1994 and September 2013, included 14 patients diagnosed as malignant fibrous histiocytoma (12 males, 2 females; median age 48 years; range 17 to 64 years). We evaluated patients' demographic features, location of the pathology, histological findings, surgical margins, and treatment modalities and investigated the effects of these parameters on survival.

Thermal necrosis induced by electrocauterization as a local adjuvant therapy in local aggressive bone tumors, what is the safe limit for surgical margins? An experimental study.

Objective: In the current study, it was aimed to investigate the temperature change in the cavity wall and pathologic necrosis occurred during cauterization, which was applied at different voltages and time intervals.

Materials And Methods: The right tibias of 32 male rabbits were used. Three 2-mm-diameter holes were created on the cortical surface of the tibia using a hand-held drill.

Solitary epithelioid hemangioendothelioma of the metacarpal.

Hemangioendotheliomas are vascular tumors which have an intermediate clinical behavior between hemangiomas and angiosarcomas. The epithelioid subtype of hemangioendothelioma, which is rarely seen in bone, has the potential to metastasize and may be confused radiologically with benign or malignant lesions. A metacarpal origin of this tumor is extremely rare.

Management of tumors and tumor-like lesions of the hand: a review of 191 patients.

Objectives: In this study, we aimed to investigate the incidence of benign and malignant hand tumors, localization and management approaches.

Patients And Methods: Between March 1986 and October 2008, 191 consecutive patients (86 males, 105 females; mean age 35.06 years; range 1 to 96 years) who were diagnosed with tumors or tumor-like lesions of the hand in our clinic were retrospectively analyzed.

Surgical management of grade I chondrosarcoma of the long bones.

The aim of this study was to compare the rates of local recurrence according to surgical treatment options in low-grade chondrosarcomas of the long bones. A retrospective review was made of 30 consecutive patients (12 male, 18 female) with a mean age of 40.7 years (range: 16-69 years) with intramedullary low-grade chondrosarcoma of the long bones treated either by intralesional curettage or wide resection at our institution between 1995 and 2011.

Bone tumors of the clavicle: risk of malignancy in the elderly and safe needle biopsy.

The clavicle is a rare site for bone tumors and little is known from the limited literature about the prognostic factors and management techniques, including biopsy. The method of biopsy is controversial in the clavicle because of the risk of injury to the neighboring neurovascular structures. Twenty patients with clavicular lesions were retrospectively reviewed with clinical, radiological, and histopathological reports.

[Chondroblastoma of the metatarsal bone and its 17-year follow-up].

Chondroblastoma is a rare bone tumor of cartilaginous origin. Metatarsal involvement is very rare, with a few cases. We presented a case of chondroblastoma localized in the fourth metatarsal bone.

Benign fibrous histiocytoma of the hand: a case report and literature review.

Benign fibrous histiocytoma (BFH) of the bone is a rare benign lesion characterised by the presence of fibroblasts and histiocytes. Fibrohistocytic lesions involving bone with identical histological appearances are common during childhood such as fibrous cortical defect. However, BFH is very rare and can only be differentially diagnosed with its presentation, localisation and radiologic features.

Tumours and tumour-like lesions of the patella: a report of eight cases.

We report eight cases of tumours and tumour-like lesions of the patella. Six lesions were primary and two were metastatic, both originating from adenocarcinoma of the rectum. Patients with anterior knee pain related with a tumourous condition usually have significant delay in diagnosis.

Primary leiomyosarcoma of bone: a report on three patients.

Primary leiomyosarcoma of bone is a rare aggressive tumor that occurs mainly in older people. It resembles other malignancies clinically and radiologically, and differential diagnosis is based on histopathology, including immunohistochemistry. If leiomyosarcoma is found in bone, the possibility that it is a metastasis from a distant tumor should be investigated.

The use of fibular autograft and ankle arthrodesis for aggressive giant cell tumor in the distal tibia: a case report.

The case describes successful distal tibial resection, fibular autograft, and ankle arthrodesis in two patients who had giant cell tumor in the distal tibia. At long-term followup, the patients had no pain and no limitation in daily or low-impact recreational activities. In conclusion, due to the large resection that is often necessary for aggressive tumors, fibular autograft and ankle arthrodesis may be a useful method in the distal tibia.

Primary angiosarcoma of the fibula : a case report.

Primary vascular neoplasms of bone are rare and have a poor prognosis. Angiosarcoma of bone originates in vascular endothelial cells within bone tissue. Patients may present with unifocal or multifocal osseous disease.

Surgical treatment of osteoblastoma : a report of 20 cases.

Osteoblastoma is a locally aggressive osteoblastic lesion of bone with rare malignant transformation. We retrospectively evaluated 20 patients who were diagnosed and surgically treated for osteoblastoma in our institution. Their mean age was 22.

Aneurysmal bone cyst recurrence in children: a review of 56 patients.

Background: Aneurysmal bone cysts (ABCs) are benign lesions that are usually treated with intralesional procedures. The clinical behavior of ABCs is reported to be more aggressive in younger patients, with high recurrence rates after surgical treatment by several authors. The purpose of this study was to review longitudinally the demographic data and outcome of current surgical techniques in children with ABC treated at a single institution and to determine the possible risk factors for recurrence, which may be detected at initial examination, including age, presenting complaint, and radiological characteristics.

[Alveolar soft part sarcoma of the extremities: an evaluation of four cases].

We presented four patients (3 women, 1 man; mean age 40 years; range 20 to 56 years) who had alveolar soft part sarcoma in the left arm, right elbow, right tibia, and left thigh, respectively. All the patients presented with a mass. Two patients had lung metastasis at the time of diagnosis.

[Prognostic factors in patients with malignant fibrous histiocytoma of the extremities].

Objectives: We evaluated prognostic factors in patients with malignant fibrous histiocytoma of the extremity.

Methods: The study included 26 patients (22 males, 4 females; 15 patients < age 60) with a diagnosis of malignant fibrous histiocytoma of the extremity. Clinical and pathological data were analyzed including age, gender, affected extremity, presentation status (primary or recurrent), localization (proximal or distal), size, depth, and grade of the tumor, resection quality, adjuvant therapy, and the presence of distant metastasis at the time of diagnosis.

Cemented endoprosthetic replacement for metastatic bone disease in the proximal femur.

In long bones, the most common site for metastases is the proximal femur. For lesions involving this region, osteosynthetic devices frequently fail, and for this reason, endoprosthetic reconstruction may be the optimal choice for treatment. Here, we present a series of 44 patients in whom 45 endoprosthetic reconstructions were performed for metastatic disease.

Embolization of benign and malignant bone and soft tissue tumors of the extremities.

Purpose: To reveal the effectiveness and reliability of preoperative, curative, and palliative embolization of benign and malignant bone and soft tissue tumors of the extremities.

Materials And Methods: Diagnostic angiography was performed on 35 patients (14 females, 40%; 21 males, 60%) between 6 and 70 years of age (mean, 32 years) who were referred to our digital subtraction angiography (DSA) unit between March 2000 and March 2004, and had extremity bone or soft tissue tumors. Among 17 patients who were initially assessed to be appropriate for angiographic embolization, DSA-assisted intra-arterial embolization was performed on 11 pre-operatively, and 6 curatively or palliatively.