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Neurilemmoma (schwannoma) is a benign, encapsulated perineural tumor of neuroectodermal derivation that originates from the Schwann cells of the neural sheath of motor and sensitive peripheral nerves; the etiology is still unknown. The tumor is normally solitary, smooth-surfaced, slow growing and generally asymptomatic. It may develop at any age and there(More)
To evaluate platelet calcium homeostasis in a typical thrombosis-prone clinical condition, 14 patients with severe arteriosclerosis and 11 healthy control subjects were studied. Platelet intracellular free calcium concentration ([Ca2+]i) was evaluated by means of the fluorescent probe fura 2 under resting conditions and after challenge with 0.05, 0.1, and(More)
The authors report their experience in the surgical and prosthetic rehabilitation of three patients affected by sequelae of cleft lip and palate, with residual alveolar cleft and absence of maxillary anterior teeth. The patients were treated by means of late secondary bone grafting of the alveolar cleft, followed by the insertion of endosseous titanium(More)
The case is described of mucocele of the right frontoethmoidal sinus with bilateral maxillary sinusitis and a large polyp in the right nasal cavity. The mucocele had determined erosion of the anterior and posterior walls of the frontal sinus and superomedial wall of the orbit. The patient was operated upon by a surgical team comprising ENT and maxillofacial(More)
The authors present their experience in 43 cases of maxillary sinus augmentation with autologous bone and hydroxylapatite granules via a lateral maxillary approach. During the same operation or after six months, according to width and height of the residual alveolar ridge, hydroxylapatite coated titanium endosteal implants (IMZ) were inserted in the(More)
This study evaluates the effectiveness of maxillo-mandibular advancement (MMA) in patients with obstructive sleep apnea syndrome (OSAS), even those without skeletal anomalies, indicating the possibility of extending this procedure to more patients. Two groups with different skeletal patterns were studied pre- and post-surgery. Group 1 (11 patients) had(More)
OBJECTIVE Platelet hyperfunction is a typical feature of the prothrombotic state that frequently complicates the natural history of diabetes. In uremia, a bleeding diathesis is present, which principally involves the primary phase of hemostasis. Thus, in patients with uremia of diabetic origin, the infrequent coexistence of two opposite alterations of(More)
OBJECTIVE Platelet hyperfunction frequently occurs in IDDM. As in many other cellular systems, cytosolic free Ca plays a key role in platelet activation. RESEARCH DESIGN AND METHODS We measured cytosolic free Ca concentration ([Ca2+]i) by means of the fluorescent probe fura-2 in 60 IDDM patients (mean age 30.8 yr, range 18-50 yr) and in 31 age-matched(More)
Immune-mediated refractoriness to platelet transfusion is a major problem in patients undergoing HSCT. In a cohort of 50 pediatric patients affected by beta thalassemia coming from Middle East countries, we experienced a high incidence of refractoriness because of anti-HLA antibodies during post-HSCT aplasia. In a risk factors analysis, factors predicting a(More)
We measured cerebrospinal fluid (CSF) and serum beta 2-microglobulin (beta 2-M) in Acquired Immunodeficiency Syndrome (AIDS) patients with or without clinical evidence of central nervous system (CNS) involvement. The CSF beta 2-M level was significantly higher than the serum level in AIDS patients with neurological symptoms, but not in AIDS without(More)