OCT Angiography: Imaging of Choroidal and Retinal Tumors.

Objective: Optical coherence tomography angiography (OCTA) is a new, noninvasive imaging modality used to assess the vasculature in chorioretinal disease. The purpose of this study was to describe OCTA findings in several chorioretinal tumors, specifically melanocytic tumors. We correlate these findings with clinical risk factors (RFs) for growth.

RECURRENT ACUTE RETINAL PIGMENT EPITHELIITIS: SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY AND OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY FEATURES.

Purpose: To describe an atypical case of acute retinal pigment epitheliitis including spectral domain optical coherence tomography (OCT) and OCT angiography features.

Methods: We report a 41-year-old woman with 3 episodes of acute retinal pigment epitheliitis over a 3-year period. Spectral domain OCT and OCT angiography images were acquired with Cirrus 5,000 spectral domain OCT.

Expression of Angiogenic Factors in Invasive Retinoblastoma Tumors Is Associated With Increase in Tumor Cells Expressing Stem Cell Marker Sox2.

Context: Progression of retinoblastoma is associated with increased tumor angiogenesis. However, a clear relationship between the expression of angiogenic markers in specific regions of the tumor and tumor progression has not been established. This study investigates the association between angiogenic factors in retinoblastomas with choroidal and/or optic nerve invasion (high-risk/invasive retinoblastoma) and expression of Sox2, a stem cell marker.

[Epidemiology of erectile dysfunction. Risk factors].

In 1993 the NIH (National Institute of Health) Consensus Conference on Impotence defined erectile dysfunction as the permanent incompetence to start or maintain an erection enough to enable satisfactory sexual intercourse. Erectile dysfunction (ED) is a frequent disorder that affects negatively quality of life of males suffering it. Its prevalence varies between different countries, cultures and races.