Publications by authors named "Samuel Pena-Ortiz"
Article Synopsis
- The study presents the fourth documented case of human ophthalmomyiasis in Mexico, caused by the larvae of Oestrus ovis, which were identified through morphological and molecular analyses.
- Five larval specimens were extracted from the patient's eye for identification, with one specimen's mitochondrial Cox1 sequence analyzed for phylogenetic insights.
- Results confirmed the larvae as O. ovis, revealing genetic connections to samples from Brazil and Iran, indicating a potential shift in environmental conditions that may facilitate the prevalence of this parasitic infestation in urban areas.
Good syndrome (GS) is a rare primary immunodeficiency in adults consisting of hypogammaglobulinemia and thymoma that affects both cellular and humoral immunity. It usually appears in patients between the 4th and 6th decade of life and affects both genders equally. Ophthalmological clinical presentation is highly variable; associations with herpetic keratitis, toxoplasmosis, and cytomegalovirus retinitis (CMVR) have been described.
View Article and Find Full Text PDFPurpose: To report the case of a patient with X-linked juvenile retinoschisis (XLRS), caused by an in-frame deletion of the RS1 gene, who presented visual loss due to bilateral central serous chorioretinopathy (CSC).Methods: Observational case report.
Results: A 34-year-old man, with type-A personality, presented with a one-month history of decreased visual acuity and metamorphopsia in his right eye.