Bilateral SMAS rhytidectomy in parotid recurrent pleomorphic adenoma

A case is presented of a young female with parotid recurrent pleomorphic adenoma and skin infiltration treated with subtotal parotidectomy combined with a bilateral superficial muscular aponeurotic system rhytidectomy

Microcystic adnexal carcinoma of the centrofacial region: a case report

Microcystic adnexal carcinoma is a rare, locally aggressive neoplasm with both eccrine and follicular differentiation and a high probability of perineural invasion of the centrofacial region. Given the histopathological features of this tumour, early diagnosis is essential for adequate management. This report refers to a case of microcystic adnexal carcinoma of the nasogenial region, with infiltration of the deep planes extending to the anterior wall of the maxillary sinus. Surgical treatment involved wide demolition of the centrofacial region followed by reconstruction using four locoregional flaps: an Indian flap and a Mustardé flap were used for cutaneous reconstruction; a septal flap to support the maxillogenial region; a mucosal flap to separate the nasal cavities

Alveolar distraction in post traumatic mandibular atrophy : report of two cases

The main indication to use vertical alveolar distraction is post-traumatic mandibular atrophy. This technique allows to obtain an adequate bone volume for insertion of osseointagrated implants. The authors present in this article two patients cases in whom alveolar vertical distraction was applied to atrophy post-traumatic, using endoral twin track distraction. In both cases it was prepared a stereolithography model to mimic the box of the bone to be distracted, to align the preoperative distractor and to obtain the more effective carrier. At the distractive stage followed the implant prosthesis stage which was designed to rehabilitate the previously atrophic bone area. In both patients it has been possible to insert the planned number of implant

Esthetic eyebrow approach for frontal sinus fractures reduction

Aim. In cranio-facial traumas, isolated fractures of frontal sinus anterior wall are peculiar for the mainly esthetic indication of reduction. In these traumas surgical treatment planning, the surgical approach has to be balanced with the clinical problem, respecting the aesthetic of the upper third of the face. Methods. The Authors present the results of a retrospective study obtained by the use of clinical criteria and a self-assessment test provided to the patients that presented a fracture of the anterior wall of the frontal sinus. Surgery was performed through a trans-cutaneous aesthetic eyebrow approach. Results. Postoperative CT scan showed appropriate reduction of displaced bone fragments in all cases. Conclusion. The surgical approach described is a safe procedure with minimal morbidity and can offer an excellent surgical approach in parallel with an excellent aesthetic resul

A persistent ultraviolet outflow from an accreting neutron star binary transient

All disc-accreting astrophysical objects produce powerful disc winds. In compact binaries containing neutron stars or black holes, accretion often takes place during violent outbursts. The main disc wind signatures during these eruptions are blue-shifted X-ray absorption lines, which are preferentially seen in disc-dominated ‘soft states’. By contrast, optical wind-formed lines have recently been detected in ‘hard states’, when a hot corona dominates the luminosity. The relationship between these signatures is unknown, and no erupting system has as yet revealed wind-formed lines between the X-ray and optical bands, despite the many strong resonance transitions in this ultraviolet (UV) region. Here we report that the transient neutron star binary Swift J1858.6-0814 exhibits wind-formed, blue-shifted absorption lines associated with C IV, N V and He II in time-resolved UV spectroscopy during a luminous hard state, which we interpret as a warm, moderately ionized outflow component in this state. Simultaneously observed optical lines also display transient blue-shifted absorption. Decomposing the UV data into constant and variable components, the blue-shifted absorption is associated with the former. This implies that the outflow is not associated with the luminous flares in the data. The joint presence of UV and optical wind features reveals a multi-phase and/or spatially stratified evaporative outflow from the outer disc. This type of persistent mass loss across all accretion states has been predicted by radiation–hydrodynamic simulations and helps to explain the shorter-than-expected duration of outbursts

The WEBT campaign to observe AO 0235+16 in the 2003-2004 observing season. Results from radio-to-optical monitoring and XMM-Newton observations

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