127 research outputs found
Malignant Glomus Tumour: A Case Report and Review of the Literature
Purpose: Glomus tumours are characteristically benign solitary tumours. At our knowledge, about 23 reports are present in
literature regarding the malignant counterpart, but only a minority developed metastases. We describe a locally aggressive
glomus tumour with lymphnode metastasis
Leiomyosarcoma of the Oropharynx and Neurogenic Tumors in a Young Patient With Turner's Syndrome
Patient: A case of Turner's syndrome developing a leiomyosarcoma of the oropharynx and metachronous neurogenic
tumors (mediastinal ‘ganglioneuroblastoma intermixed’, subcutaneous neurilemoma) is described
Pulmonary disease caused by Mycobacterium marseillense, Italy
Mycobacteriummarseillense was recently described as a new species belonging to the Mycobacterium avium complex (MAC).We describe a case of pulmonary disease caused by M. marseillense in an immunocompetent patient. All strains isolated from the patient were preliminarily identified as M. intracellulare; however, a retrospective molecular analysis corrected the identification to M. marseillense
Malignant glomus tumour: a case report and review of the literature. Sarcoma
Abstract Purpose: Glomus tumours are characteristically benign solitary tumours. At our knowledge, about 23 reports are present in literature regarding the malignant counterpart, but only a minority developed metastases. We describe a locally aggressive glomus tumour with lymphnode metastasis. Patient: The patient was a 40 year-old man presenting a 1.5-cm lesion on the right wrist incompletely excised and a recurrent tumour, 4 Â 2 cm in size, removed after 9 months, for which he received radiotherapy. After 2 years he developed an axillary lymphnode metastasis. Results: Histologically, both tumours (primary and metastasis) were similar. There were sheets and nests of uniform small cells with scant eosinophilic cytoplasm and round to polygonal nuclei; there was some degree of pleomorphism and the mitotic index was high (up to 18 m/10 HPF). The tumour cells were positive for vimentin and smooth muscle actin, but negative for desmin, NSE, Factor VIII, chromogranin, cytokeratin. Remarkably, in the primary, the cells strongly expressed p53 (70%) and MIB-1 (35%). Discussions: In many reported malignant cases, the histology of the tumour cells suggested that they were malignant, yet the clinical course has been benign. Carefully reviewing the literature, it seems that actually we have enough histological criteria to identify the cases with biological adverse outcome. Those unfortunate cases behave as high grade sarcomas and therefore may deserve an aggressive therapeutic treatment
Involvement of the Soluble Urokinase Receptor in Chondrosarcoma Cell Mobilization
High levels of urokinase receptor (uPAR) in tissue and serum of patients with chondrosarcoma correlate with poor prognosis. First, we analyzed the uPAR levels in tissues and plasma of five patients affected by chondrosarcoma. Interestingly, very high levels of uPAR and its soluble forms (SuPAR) were found on tumor cell surfaces and plasma, respectively, of two patients with lung metastases. Therefore, to investigate the role of SuPAR in chondrosaromas, we generated a primary cell culture from a chondrosarcoma tissue overexpressing uPAR on cell surfaces. We found that chondrosarcoma-like primary culture cells release a large amount of SuPAR in the medium. In vitro, SuPAR elicits chondrosarcoma cell migration likely through its uPAR88-92 sequence, since the DII88-183 or DIIDIIR88-284 uPAR domains retain motogen effect whereas DI1-87 or DIII184-284 domains, both lacking the uPAR88-92 sequence, are ineffective. Chondrosarcoma cells cross matrigel in response to SuPAR, and their invasion capability is abrogated by RERF peptide which inhibits uPAR88-92 signalling. These findings assign a role to uPAR in mobilizing chondrosarcoma cells and suggest that RERF peptide may be regarded as a prototype to generate new therapeutics for the chondrosarcoma treatment
Confirmed Activity and Tolerability of Weekly Paclitaxel in the Treatment of Advanced Angiosarcoma
Background. In several prospective and retrospective studies, weekly paclitaxel showed promising activity in patients with angiosarcoma. Patients and Methods. Our study was originally designed as a prospective, phase II multicenter trial for patients younger than 75, with ECOG performance status 0–2, affected by locally advanced or metastatic angiosarcoma. Patients received paclitaxel 80 mg/m2 intravenously, at days 1, 8, and 15 every 4 weeks, until disease progression or unacceptable toxicity. Primary endpoint was objective response. Results. Eight patients were enrolled but, due to very slow accrual, the trial was prematurely stopped and further 10 patients were retrospectively included in the analysis. Out of 17 evaluable patients, 6 patients obtained an objective response (5 partial, 1 complete), with an objective response rate of 35% (95% confidence interval 17%–59%). Of note, five responses were obtained in pretreated patients. In the paper, details of overall survival, progression-free survival, and tolerability are reported. Conclusions. In this small series of patients with locally advanced or metastatic angiosarcoma, weekly paclitaxel was confirmed to be well tolerated and active even in pretreated patients
Lack of Activity of Docetaxel in Soft Tissue Sarcomas: Results of a Phase II Study of the Italian Group on Rare Tumors
Purpose. The prognosis of advanced soft tissue sarcoma is poor, only
a few drugs showing some activity with response rates around 15– 25%. Consequently drug
development seems mandatory to improve treatment outcome. Following previous
favourable EORTC experience, the Italian Group on Rare Tumors started a phase II study
with docetaxel to confirm the activity of this drug in soft tissue sarcoma
SEA-EU Alliance assistance to the academic community in Ukraine
This editorial presents the activities of 9 universities of the University Alliance “European University of the Seas” (SEAEU) in assisting their colleagues from Ukrainian universities after the beginning of the War in Ukraine. As the universities come from different parts of Europe, they were affected by the War in very different ways – some being neighbours to Ukraine (Poland) and some being far away from the migrant route from Ukraine (Malta). Therefore, they have been affected in different ways by the current War in Europe, but they all engaged their resources to provide academic and humanitarian help to their academic colleagues in Ukraine. All activities were presented and publicised during the governance meeting of the SEA-EU Alliance in Gdańsk in 2023; here we provide an update about our assistance to Ukrainian colleagues
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