Coexistence of persistent fetal vasculature and retinoblastoma in the same eye.

Background: As retinoblastoma (RB) is the most frequent primary intraocular malignant tumor in childhood, it should be the main pathology to rule out in pediatric patients with leukocoria. Persistence of fetal vasculature (PFV) is within the differential diagnosis of leukocoria, a vitreous disorder arising from a defect in the involution of the hyaloid vasculature in the embryonic stage, which affects normal ocular development and commonly produces associated microophthalmia. An early diagnosis and timely treatment are crucial for a better prognosis and life expectancy of the child.

Wikipedia, friend or foe regarding information on diabetic retinopathy? A content analysis in the world's leading 19 languages.

Objective: To compare the completeness and quality of information about diabetic retinopathy on Wikipedia in the world's leading spoken languages in 2020.

Design And Methods: An observational, descriptive, cross-sectional study. The information on diabetic retinopathy obtained from the free encyclopedia Wikipedia® was assessed in languages with one hundred million or more total speakers.

Anatomical and positional variants of the brachiocephalic trunk in a Mexican population.

Background: Brachiocephalic trunk (BCT) variants may have a clinical impact during surgical procedures, some of which could be fatal. The objective of this study was to classify height positions of the BCT and report their prevalence in a Mexican population.

Methods: Patients: A retrospective, descriptive, observational, and cross-sectional was performed using computed tomography angiography (CTA) of adult (> 18 years of age) patients, without gender distinction, of Mexican origin.