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Castel Guelfo di Bologna, Italy

Bertolotto M.,University of Trieste | Derchi L.E.,University of Genoa | Sidhu P.S.,Kings College | Serafini G.,Ospedale S. Corona | And 3 more authors.
American Journal of Roentgenology | Year: 2011

OBJECTIVE. The purpose of this retrospective study was to assess whether contrast-enhanced ultrasound is useful for characterization of acute segmental testicular infarction. MATERIALS AND METHODS. Twenty men with acute scrotal pain and suspected segmental testicular infarction underwent contrast-enhanced ultrasound. Three patients underwent orchiectomy. For the other patients, the final diagnosis was based on the absence of tumor markers and a change in the size or shape of the tumor during follow-up. Forty-nine color Doppler ultrasound studies (16 within 24 hours of the onset of pain; 14, 2-17 days after pain onset; 19 after 1 month or more), and 38 contrast-enhanced ultrasound studies (13 within 24 hours after pain onset; nine, 2-17 days; 16 after 1 month or more) were performed. RESULTS. Fourteen of 16 lesions examined within 24 hours were oval, and two were wedge shaped. Eight lesions were isoechoic to the testis, six were hypoechoic, and two had mixed echogenicity. Twelve lesions were avascular and four were hypovascular at color Doppler examination. Contrast-enhanced ultrasound showed avascular parenchymal lobules in all cases and without perilesional rim enhancement in 12 of 13 studies. Two to 17 days after the symptoms appeared, contrast-enhanced ultrasound showed avascular lobules in all cases and perilesional rim enhancement in eight examinations. After 1 month or more, contrast-enhanced ultrasound depicted intralesional vascular spots in 12 of 14 infarcts. Perilesional enhancement was absent. CONCLUSION. Recognition of lobular morphologic characteristics and the presence of perilesional rim enhancement at contrast-enhanced ultrasound can increase confidence in the diagnosis of segmental testicular infarction compared with reliance on gray-scale and color Doppler findings. Changes in lesion features during follow-up confirm the differential diagnosis from other testicular lesions and allow conservative management. © American Roentgen Ray Society. Source


Guidi S.,University of Bologna | Ciani E.,University of Bologna | Bonasoni P.,Istituto Giannina Gaslini | Santini D.,Policlinico S. Orsola Malpighi | Bartesaghi R.,University of Bologna
Brain Pathology | Year: 2011

Evidence in mouse models for Down syndrome (DS) and human fetuses with DS clearly shows severe neurogenesis impairment in various telencephalic regions, suggesting that this defect may underlie the cognitive abnormalities of DS. As cerebellar hypotrophy and motor disturbances are part of the clinical features of DS, the goal of our study was to establish whether these defects may be related to neurogenesis impairment during cerebellar development. We found that in fetuses with DS (17-21 weeks of gestation) the cerebellum had an immature pattern, a reduced volume and notably fewer cells (-25%/-50%) in all cerebellar layers. Immunohistochemistry for Ki-67, a marker of cycling cells, showed impaired proliferation (-17%/-50%) of precursors from both cerebellar neurogenic regions (external granular layer and ventricular zone). No differences in apoptotic cell death were found in DS vs. control fetuses. The current study provides novel evidence that in the cerebellum of DS fetuses there is a generalized hypocellularity and that this defect is due to proliferation impairment, rather than to an increased cell death. The reduced proliferation potency found in the DS fetal cerebellum, in conjunction with previous evidence, strengthens the idea that the trisomic brain is characterized by widespread neurogenesis disruption. © 2010 International Society of Neuropathology. Source


Heijmen R.H.,St. Antonius Hospital | Thompson M.M.,St. Georges Hospital | Fattori R.,Policlinico S. Orsola Malpighi | Goktay Y.,Dokuz Eylul University | And 2 more authors.
Journal of Endovascular Therapy | Year: 2012

Purpose: To evaluate procedural and 30-day outcomes of thoracic endovascular aortic repair (TEVAR) employing the Valiant Thoracic Stent Graft with the Captivia Delivery System. Methods: Enrollment in the study (www.ClinicalTrials.com identifier NCT01181947) included all eligible patients implanted with the Valiant Captivia System retrospectively and prospectively at 15 sites in Europe and Turkey between October 2009 and June 2010. In the 100 treated patients (81 men; mean age 64.6±12.0 years, range 25-87), indications included descending thoracic aortic aneurysm (TAA, 49.0%) and aortic dissection (42.0%). Results: Technical success was 100.0%, with no misaligned deployments or aortic perforations. Mean follow-up was 68.9±34.9 days (range 20-147, median 61). The 30-day rate of all-cause mortality was 4.0% (all 4 cases procedure-related, 3 device-related). Retrograde type A dissection occurred in 2 patients. The only conversion to open surgery was successful in a patient experiencing intraoperative aneurysm rupture. Stroke occurred in 4 (4.0%) patients and paraplegia in 1 (1.0%). Among 66 patients with 30-day imaging studies evaluable for endoleak, 4 (6.1%) had type I and 7 (10.6%) had type II endoleak; there were no types III or IV. Within 30 days, no secondary endovascular procedures were required due to endoleak. One patient with type II endoleak died 3 weeks postimplantation before scheduled embolization. Conclusion: In this analysis of procedural and 30-day results, the high technical success and clinical outcome rates showed that the Valiant Thoracic Stent Graft with the new Captivia Delivery System has promising capacity to treat a variety of thoracic aortic conditions in a range of anatomies. © 2012 by the International Society of Endovascular Specialists. Source


D'Alberton F.,Policlinico S. Orsola Malpighi
Sexual Development | Year: 2010

This paper focuses on the importance of full disclosure in disorders of sex development (DSD), as a universal human right and closely related to informed consent. Full disclosure is not only a way of communicating a diagnosis, it is a methodological constant that permeates all the clinical moments expressed by a multidisciplinary team. As stated by The Chicago consensus, DSD should be referred to specialized centers of excellence. In these centers provided with the necessary multidisciplinary team that is able to: provide knowledge, skills and experience; deliver quality and care, and cope with the emotional barriers that often hinder the practice of full disclosure. Full disclosure is important when a person is informed about something, can participate in making a decision or is advised about something that needs to be done before he/she will be able to make a choice. However, if a person is informed about something that was done unnecessarily and could have been postponed until he/she could have been involved in making the decision, full disclosure can be seen as deception colored by rage, sorrow and regret. Copyright © 2010 S. Karger AG, Basel. Source


Siracusano S.,University of Trieste | Bertolotto M.,University of Trieste | Ciciliato S.,University of Trieste | Valentino M.,Policlinico S. Orsola Malpighi | And 2 more authors.
World Journal of Urology | Year: 2011

Background: By using a microbubble contrast agent and contrast-specific imaging software, the contrast-enhanced ultrasound (CEUS) is able to depict the micro and macrocirculation of the target organ. Methods: A review of the peer reviewed literature was done regarding the current role of ultrasound CEUS imaging in the evaluation of renal pathology with reference to the diagnosis of renal ischaemia, in the characterization of complex cystic lesions and in those with equivocal enhancement at CT. Results: CEUS provides information on tissue perfusion and may play a role in kidney mass characterization similar to the role of contrast-enhanced CT and MRI. In this context, the characterization of cystic lesions is probably the most consolidated field of application of contrast agents on kidney ultrasound imaging. Finally, CEUS provides a good alternative to CT, especially in patients with contraindications to iodinated contrast agents. Conclusions: The usefulness of CEUS in these applications is confirmed by extensive literature production and this article focuses on the potential clinical applications of recent advances in CEUS technology in urology. © 2011 Springer-Verlag. Source

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