Sergio Vázquez Martínez

• Bachelor of Veterinary Science
• ECVIM-CA Oncology Resident at IVC Evidensia Aúna Especialidades Veterinarias

Background Listeriosis is a severe foodborne infection caused by Listeria monocytogenes, an important foodborne pathogen of animals and humans. Listeriosis is a rare disease in cats. Objective To describe the clinical, diagnostic imaging, histological, and microbiological features of L. monocytogenes‐associated mesenteric lymphadenitis in a cat....

Canine non-indolent T-cell lymphoma (cNITCL) is associated with low response rates and short progression free survivals (PFS) with standard CHOP protocols, as a result alternative alkylating-based induction protocols are currently being evaluated. The CLOP protocol is a modification of the Madison-Wisconsin protocol with similar schedule, drugs and...

Toceranib has been documented to provide clinical benefit in dogs with a variety of carcinomas. Long-term disease control can be achieved in canine oral squamous cell carcinomas (OSCCs) with a compartmental surgical approach. When local therapy is not feasible, cases managed with cytotoxic chemotherapy have a low response rate and short progression...

Lomustine, vincristine and prednisolone (LOP) type protocols have been evaluated in canine naïve or relapsed large-cell lymphoma (LCL) but not in its feline counterpart. The aim of this study was to evaluate safety and tolerability of LOP in feline LCL.

The purpose of this prospective study was to evaluate the toxicity and efficacy of a dose-intensified adjuvant doxorubicin protocol in canine splenic hemangiosarcoma.

El síndrome de lisis tumoral agudo (SLTA) es una urgencia oncológica originada por la destrucciónrápida de células malignas en respuesta a la quimioterapia. Se considera un suceso infrecuente en medicina veterinaria, que puede ocurrir en pacientes con carga tumoral elevada que respondan rápidamente a la terapia; típicamente en pacientes con linfoma...

El mastocitoma cutáneo canino representa del 16 al 21% de las neoplasias tegumentarias malignas. Se localiza frecuentemente en la dermis, tejido subcuta?neo y con menor incidencia en el aparato digestivo, hígado, bazo, tonsilas o cavidad nasal. Las metástasis pulmonares son inusuales, siendo los nódulos linfáticos regionales, hígado, bazo y médula...

La hipoglucemia es un síndrome paraneoplásico producido fundamentalmente por tumores como el insulinoma. Sin embargo, de forma menos frecuente, este síndrome puede aparecer en tumores primarios hepáticos o en neoplasias del músculo liso, especialmente del tracto gastrointestinal. El mecanismo principal por el que se produce la hipoglucemia en esta...

Los meningiomas son los tumores primarios más frecuentes que afectan a la médula espinal, presentándose fundamentalmente como lesiones intradurales-extramedulares. En términos generales, se trata de una neoplasia con origen en las células meningoteliales del aracnoides y de comportamiento maligno. En este tipo de tumores se describen tiempos de sup...

Los ratios hematológicos (RH) han sido estudiados en estados de sepsis en medicina humana y son utilizados como valores pronóstico y diagnóstico en dicha situación. Los ratios también han sido estudiados en la especie felina pero, en conocimiento de los autores, no hay trabajos que describan su uso en la panleucopenia felina. El objetivo de este es...

Basophilic leukemia is a very uncommon myeloproliferative disorder in humans and dogs. It is characterized by the presence of numerous neoplastic basophil-type lineage myelocytes in peripheral blood and several organs. This study reports and describes the main clinical and pathological findings of basophilic leukemia in a dog.

El objetivo general de este trabajo es contribuir a mejorar el conocimiento sobre el uso de la citopatología como técnica diagnóstica, mediante el estudio de muestras recibidas en el Hospital Veterinario de la Universidad de León (HVULE). De forma específica, analizar cuáles son las localizaciones más frecuentes de origen de las muestras, conocer l...

This study reports a case of basophilic leukemia, scarcely described in dogs, associated with hypoglycemia and a duodenal ulcer, that have been reported in humans as a paraneoplastic syndrome, but not in the canine species. In this case, the diagnosis was made based on the the cell morphology and c-kit negative expression.

Simple Summary In human lymphomas, it has been shown that the macrophages present in the tumor have an influence on their behavior; however, studies on this topic are scarce in veterinary medicine. The aim of this work was to determine the relationship between the amount and type of macrophage infiltrates with histological grade and immunophenotype...

Hematological ratios have been studied as inflammatory state markers in human medicine. To the best of the authors’ knowledge, the use of hematological ratios is not reported in canine parvovirosis. The aim of this study was to evaluate the relation between duration of hospitalization and death with neutrophil-to- lymphocyte ratio (NLR), platelet-t...

El mesotelioma es un tumor poco frecuente en la especie canina, representando aproximadamente el 0,2% de todas las neoplasias en esta especie. Se origina a partir de las células mesoteliales que recubren las distintas cavidades corporales, con mayor frecuencia en pleura y menos comúnmente en pericardio y peritoneo. Histológicamente, se diferencian...

In human lymphomas, it has been shown that the macrophages present in the tumor have an influence on their behavior; however, studies on this topic are scarce in veterinary medicine. The aim of this work was to determine the relationship between the macrophage infiltrates with the histological grade and the immunophenotype in clinical cases of cani...