Pseudomonas mendocina bacteraemia secondary to cellulitis – a report and brief series of cases

Background: Pseudomonas mendocina is a rare cause of disease in humans with few cases described, but known to cause severe infections, mainly endocarditis and bacteraemia. Case description: An 86-year-old Caucasian male, with several vascular risk factors (type 2 diabetes, hypertension, dyslipidaemi...

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Main Authors: Jorge Reis, Francisca Carmo, Inês Soares, Catarina Salvado, Mariana Fidalgo
Format: Article
Language:English
Published: SMC MEDIA SRL 2025-01-01
Series:European Journal of Case Reports in Internal Medicine
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Online Access:https://www.ejcrim.com/index.php/EJCRIM/article/view/5094
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author Jorge Reis
Francisca Carmo
Inês Soares
Catarina Salvado
Mariana Fidalgo
author_facet Jorge Reis
Francisca Carmo
Inês Soares
Catarina Salvado
Mariana Fidalgo
author_sort Jorge Reis
collection DOAJ
description Background: Pseudomonas mendocina is a rare cause of disease in humans with few cases described, but known to cause severe infections, mainly endocarditis and bacteraemia. Case description: An 86-year-old Caucasian male, with several vascular risk factors (type 2 diabetes, hypertension, dyslipidaemia, coronary heart disease and heart failure), who presented long-standing lower limb phlyctens for which he was being treated, developed lower limb cellulitis. When observed in the Emergency Department, he was septic and was admitted for treatment and surveillance. Blood cultures were positive for P. mendocina. He was treated with antibiotics and recovered, and was discharged home. Conclusion: Damage to the skin barrier as in cellulitis provides a point of entry for P. mendocina, a microorganism that lives in soil and water. The source of contamination is rarely identified, but immunocompromised people present a higher risk of infection and severe disease. The antibiotic susceptibility profile is different from the more common Pseudomonas aeruginosa, with fewer known resistances. Albeit rare, this is thought to be an underreported infection that clinicians should be aware of.
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series European Journal of Case Reports in Internal Medicine
spelling doaj-art-a007b8c6f315428b89d28159dd0d43112025-02-04T13:37:20ZengSMC MEDIA SRLEuropean Journal of Case Reports in Internal Medicine2284-25942025-01-0110.12890/2025_0050944629Pseudomonas mendocina bacteraemia secondary to cellulitis – a report and brief series of casesJorge Reis0Francisca Carmo1Inês Soares2https://orcid.org/0000-0002-8730-6461Catarina Salvado3https://orcid.org/0009-0003-5726-9553Mariana Fidalgo4https://orcid.org/0000-0002-7572-5108Department of Internal Medicine, Unidade Local de Saúde Gaia/Espinho, Vila Nova de Gaia, PortugalDepartment of Internal Medicine, Unidade Local de Saúde Gaia/Espinho, Vila Nova de Gaia, PortugalDepartment of Internal Medicine, Unidade Local de Saúde Gaia/Espinho, Vila Nova de Gaia, PortugalDepartment of Internal Medicine, Unidade Local de Saúde Gaia/Espinho, Vila Nova de Gaia, PortugalDepartment of Internal Medicine, Unidade Local de Saúde Gaia/Espinho, Vila Nova de Gaia, PortugalBackground: Pseudomonas mendocina is a rare cause of disease in humans with few cases described, but known to cause severe infections, mainly endocarditis and bacteraemia. Case description: An 86-year-old Caucasian male, with several vascular risk factors (type 2 diabetes, hypertension, dyslipidaemia, coronary heart disease and heart failure), who presented long-standing lower limb phlyctens for which he was being treated, developed lower limb cellulitis. When observed in the Emergency Department, he was septic and was admitted for treatment and surveillance. Blood cultures were positive for P. mendocina. He was treated with antibiotics and recovered, and was discharged home. Conclusion: Damage to the skin barrier as in cellulitis provides a point of entry for P. mendocina, a microorganism that lives in soil and water. The source of contamination is rarely identified, but immunocompromised people present a higher risk of infection and severe disease. The antibiotic susceptibility profile is different from the more common Pseudomonas aeruginosa, with fewer known resistances. Albeit rare, this is thought to be an underreported infection that clinicians should be aware of.https://www.ejcrim.com/index.php/EJCRIM/article/view/5094pseudomonas mendocinapseudomonascellulitissepsisbacteraemia
spellingShingle Jorge Reis
Francisca Carmo
Inês Soares
Catarina Salvado
Mariana Fidalgo
Pseudomonas mendocina bacteraemia secondary to cellulitis – a report and brief series of cases
European Journal of Case Reports in Internal Medicine
pseudomonas mendocina
pseudomonas
cellulitis
sepsis
bacteraemia
title Pseudomonas mendocina bacteraemia secondary to cellulitis – a report and brief series of cases
title_full Pseudomonas mendocina bacteraemia secondary to cellulitis – a report and brief series of cases
title_fullStr Pseudomonas mendocina bacteraemia secondary to cellulitis – a report and brief series of cases
title_full_unstemmed Pseudomonas mendocina bacteraemia secondary to cellulitis – a report and brief series of cases
title_short Pseudomonas mendocina bacteraemia secondary to cellulitis – a report and brief series of cases
title_sort pseudomonas mendocina bacteraemia secondary to cellulitis a report and brief series of cases
topic pseudomonas mendocina
pseudomonas
cellulitis
sepsis
bacteraemia
url https://www.ejcrim.com/index.php/EJCRIM/article/view/5094
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AT franciscacarmo pseudomonasmendocinabacteraemiasecondarytocellulitisareportandbriefseriesofcases
AT inessoares pseudomonasmendocinabacteraemiasecondarytocellulitisareportandbriefseriesofcases
AT catarinasalvado pseudomonasmendocinabacteraemiasecondarytocellulitisareportandbriefseriesofcases
AT marianafidalgo pseudomonasmendocinabacteraemiasecondarytocellulitisareportandbriefseriesofcases