Lesions in difficult locations within the auricular pavilion have been a major challenge for dermatologic surgeons, since access to their surgical approach tends to be complicated. In this article, the authors describe a case of basal cell carcinoma affecting the lower part of the left auricular concha that was resected by Mohs micrographic surgery, whose approach proved to be challenging. The ...

Our nose, paranasal sinuses, as well as the throat (pharynx) are part of the upper respiratory tract, which consists of two parts. Anatomically, the external and internal parts of the nose can be illustrated. The first consists of nasal bones and nasal cartilages and the internal nose is formed by the nasal cavity and the nasal concha also known as turbinates (choanae), are separated by the nas...

Wnt11/Pk1a-mediated planar cell polarity signalling orchestrates epithelial organ morphogenesis by regulating N-cadherin dependent cell adhesion forces Pablo Oteiza, Mathias Koeppen, Michael Krieg, Stephan Preibisch, Steffen Haertel, Daniel Mueller, Carl-Philipp Heisenberg, Miguel Concha 1 University of Chile, Santiago, Chile 2 Max Planck Institute for Molecular Cell Biology and Genetics, Dresd...

BACKGROUND Although cervical vagus nerve stimulation is effective for reducing infarct volume in rats, it is not feasible for acute human stroke as it requires surgical incision of the neck. We hypothesized that stimulation of the dermatome in the external ear innervated by the vagus nerve (auricular vagus nerve stimulation; aVNS) reduces infarct volume after transient focal ischemia in rats. ...

OBJECTIVES Differential diagnosis is essential, since secondary headache due to paranasal sinus lesions are similar in headache characteristics to primary headache. However, since patients visiting the emergency department due to acute severe headache are primarily treated by neurologists, paranasal sinuses lesions and anatomical variations of the nasal cavity causing the headache are commonly ...

Este caso relata las causas que impulsaron a Viña Concha y Toro (VCT), holding chileno con operaciones en la industria vitivinícola mundial, diseñar un plan de reestructuración. La rentabilidad compañía disminuyó el 2016 debido dos factores principalmente: 1) incrementos costo uva, gran parte VCT compraba agricultores independientes; 2) fluctuaciones cambiarias, dado más del 80% los ingresos se...