X‐linked CD40 ligand deficiency in a 1‐year‐old male Shih Tzu with secondary Pneumocystis pneumonia

Abstract An approximately 1‐year‐old male intact Shih Tzu dog was referred to a tertiary facility with a history of progressive tachypnea, increased respiratory effort, and weight loss over a 3‐month period that failed to improve with empirical antimicrobial treatment. Upon completion of a comprehen...

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Main Authors: Kristen Merrill, Emily Coffey, Eva Furrow, Isabelle Masseau, Hansjörg Rindt, Carol Reinero
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Journal of Veterinary Internal Medicine
Subjects:
Online Access:https://doi.org/10.1111/jvim.15988
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author Kristen Merrill
Emily Coffey
Eva Furrow
Isabelle Masseau
Hansjörg Rindt
Carol Reinero
author_facet Kristen Merrill
Emily Coffey
Eva Furrow
Isabelle Masseau
Hansjörg Rindt
Carol Reinero
author_sort Kristen Merrill
collection DOAJ
description Abstract An approximately 1‐year‐old male intact Shih Tzu dog was referred to a tertiary facility with a history of progressive tachypnea, increased respiratory effort, and weight loss over a 3‐month period that failed to improve with empirical antimicrobial treatment. Upon completion of a comprehensive respiratory evaluation, the dog was diagnosed with severe Pneumocystis pneumonia and secondary pulmonary hypertension. Clinical signs resolved and disease resolution was confirmed after completion of an 8‐week course of trimethoprim‐sulfonamide, 4‐week tapering dose of prednisone to decrease an inflammatory response secondary to acute die‐off of organisms, a 2‐week course of clopidogrel to prevent clot formation, and a 2‐week course of a phosphodiesterase‐5 inhibitor to treat pulmonary hypertension. Immunodiagnostic testing and genetic sequencing were performed to evaluate for potential immunodeficiency as an underlying cause for the development Pneumocystis pneumonia, and identified an X‐linked CD40 ligand deficiency.
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spelling doaj.art-bfc2faf2661641d5b293cc37d6beade12022-12-22T04:06:51ZengWileyJournal of Veterinary Internal Medicine0891-66401939-16762021-01-0135149750310.1111/jvim.15988X‐linked CD40 ligand deficiency in a 1‐year‐old male Shih Tzu with secondary Pneumocystis pneumoniaKristen Merrill0Emily Coffey1Eva Furrow2Isabelle Masseau3Hansjörg Rindt4Carol Reinero5Department of Veterinary Medicine and Surgery University of Missouri, Ringgold Standard Institution ‐ Small Animal Internal Medicine Columbia Missouri USAUniversity of Minnesota, Ringgold Standard Institution Minneapolis Minnesota USAUniversity of Minnesota, Internal Medicine Veterinary Medical Center St. Paul Minnesota USADepartment of Sciences Cliniques Universite de Montreal St. Hyacinthe Quebec CanadaUniversity of Missouri, College of Veterinary Medicine, Veterinary Medicine and Surgery Columbia Missouri USAUniversity of Missouri, Veterinary Medicine and Surgery Columbia Missouri USAAbstract An approximately 1‐year‐old male intact Shih Tzu dog was referred to a tertiary facility with a history of progressive tachypnea, increased respiratory effort, and weight loss over a 3‐month period that failed to improve with empirical antimicrobial treatment. Upon completion of a comprehensive respiratory evaluation, the dog was diagnosed with severe Pneumocystis pneumonia and secondary pulmonary hypertension. Clinical signs resolved and disease resolution was confirmed after completion of an 8‐week course of trimethoprim‐sulfonamide, 4‐week tapering dose of prednisone to decrease an inflammatory response secondary to acute die‐off of organisms, a 2‐week course of clopidogrel to prevent clot formation, and a 2‐week course of a phosphodiesterase‐5 inhibitor to treat pulmonary hypertension. Immunodiagnostic testing and genetic sequencing were performed to evaluate for potential immunodeficiency as an underlying cause for the development Pneumocystis pneumonia, and identified an X‐linked CD40 ligand deficiency.https://doi.org/10.1111/jvim.15988gene mappinggenetic markersimmunodeficiencyinfectious diseasespneumoniathoracic imaging
spellingShingle Kristen Merrill
Emily Coffey
Eva Furrow
Isabelle Masseau
Hansjörg Rindt
Carol Reinero
X‐linked CD40 ligand deficiency in a 1‐year‐old male Shih Tzu with secondary Pneumocystis pneumonia
Journal of Veterinary Internal Medicine
gene mapping
genetic markers
immunodeficiency
infectious diseases
pneumonia
thoracic imaging
title X‐linked CD40 ligand deficiency in a 1‐year‐old male Shih Tzu with secondary Pneumocystis pneumonia
title_full X‐linked CD40 ligand deficiency in a 1‐year‐old male Shih Tzu with secondary Pneumocystis pneumonia
title_fullStr X‐linked CD40 ligand deficiency in a 1‐year‐old male Shih Tzu with secondary Pneumocystis pneumonia
title_full_unstemmed X‐linked CD40 ligand deficiency in a 1‐year‐old male Shih Tzu with secondary Pneumocystis pneumonia
title_short X‐linked CD40 ligand deficiency in a 1‐year‐old male Shih Tzu with secondary Pneumocystis pneumonia
title_sort x linked cd40 ligand deficiency in a 1 year old male shih tzu with secondary pneumocystis pneumonia
topic gene mapping
genetic markers
immunodeficiency
infectious diseases
pneumonia
thoracic imaging
url https://doi.org/10.1111/jvim.15988
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