background: segmental vitiligo is a small subset albeit persistent form of focal vitiligo with dermatomal distribution and resistant to medical therapy. in recent years, surgical therapy as hair follicle autograft transplantation has been a hot topic in management of segmental vitiligo. in this study, we evaluated the efficacy of this method in segmental vitiligo lesions. methods: the study rec...

introduction:mediastinum contains different vital structures that are located in the anterior and middle or posterior compartments. various types of mediastinal masses or tumors can be seen in the mediastinum. materials and methods:this case series study was performed on 95 patients who had referred to mashhad university of medical sciences between 1990 and 2010 were reviewed. the inclusion cri...

background: growth factors play a major part in wound healing in many tissues including the periodontium. transforming growth factor-β1 (tgf-β1) is one of these factors present in the gingival crevicular fluid. in addition, it is considered as one of the most important anti-inflammatory cytokines. interleukin-1β is a proinflammatory cytokine that presents itself in gingival inflammation and the...

a common complication of prosthetic heart valves is thrombosis. although the incidence of prosthetic valve thrombosis (pvt) in the tricuspid position is high, there are not enough data on the management of it, in contrast to left-sided pvt. here, we describe three cases of tricuspid pvt with three different management approaches: thrombolytic therapy; close observation with oral anticoagulants;...

this case series aims to comprehensively introduce intentional replantation with a focus on its indications and case selection in endodontics. in all represented cases, calcium enriched mixture (cem) cement is used for root-end filling. this case series demonstrates twenty cases of ir and extraoral root-end resection and filling with cem cement. all the selected teeth had a failed endodontic tr...