ABSTRACT
Dos especies de ectoparásitos fueron colectados de un lobo marino sudamericano (Otaria flavescens) hallado varado en las playas de Chorrillos, en Lima, Perú. Los ectoparásitos fueron identificados como Antarctophthirus microchir (Phthiraptera) y Orthohalarachne attenuata (Acari). Algunas características morfológicas son descritas en el presente reporte. El hallazgo de estos ectoparásitos constituyen los primeros registros en el Perú.
Two species of ectoparasites were collected from a South American sea lion (Otaria flavescens) found stranded on the beaches of Chorrillos in Lima, Peru. The ectoparasites were identified as Antarctophthirus microchir (Phthiraptera) and Orthohalarachne attenuata (Acari). Some morphological characteristics are described in this report. The finding of these ectoparasites is the first records in Peru.
ABSTRACT
A 14-year-old female South American sea lion (Otaria byronia) with persistent vaginal secretion and chronic hemorrhagic diarrhea was encountered. During postmortem examination, the uterus was found to resemble a balloon with mucosal congestion and was filled with grayish milky material. The ovaries also had abnormal features, including necrotic surface lesions and multiple whitish foci in the cut section. Hemorrhages and ulcerated changes due to toxemia were observed in other organs, including the liver, spleen, lung, intestines, and lymph nodes. Microscopically, the left ovary contained interlacing fascicles of fibroblast-like cells with blunt-end nuclei showing cytoplasmic positive immunoreactivity against alpha-smooth muscle actin and desmin. The right ovary contained cells with round to cigar-shaped nuclei showing cytoplasmic positive immunoreactivity against vimentin. In conclusion, based on classification of bilateral ovarian tumors as a leiomyoma in the left region and a fibroma in the right region, this sea lion was diagnosed with chronic closed pyometra.
Subject(s)
Female , Humans , Actins , Autopsy , Cytoplasm , Desmin , Diarrhea , Estrogens, Conjugated (USP) , Fibroma , Hemorrhage , Intestines , Leiomyoma , Liver , Lung , Lymph Nodes , Muscles , Ovary , Pyometra , Sea Lions , Spleen , Toxemia , Ulcer , Uterus , VimentinABSTRACT
Campylobacter insulaenigrae have been isolated from different pinnipeds but not from South American sea lion (Otaria flavescens). The aim of this work is to report the first isolation of C. insulaenigrae from South American sea lion (Otaria flavescens). The isolate, identified by its phenotypic and molecular characteristics, allow recognizing O. flavescens as a new host for C. insulaenigrae.