Klebsiella pneumoniae, a gram-negative organism, is an emerging common cause of PLA, particularly in patients with poorly controlled diabetes mellitus and without any pre-existing liver disease. Check for errors and try again. K. pneumoniaewas first discovered by Friedlander in 1882 and considered to be responsible for a severe form of lobar pneumonia. Anat. After that, a 6-week course of amoxicillin-clavulanate (1 g every 12 h) was substituted. Diagnosis: Klebsiella pneumonia (aka Friedländer’s pneumonia) - Images, diagnosis, treatment options, review - Thoracic Imaging Case. K. pneumoniae is found in the normal flora of skin, mouth and intestines, where it does not cause disease. They are commonly found in the environment and in … Seventy of Klebsiella pneumoniae isolates had been collected from some Hospitals in Baghdad city from October to December 2017. Br J Radiol. Introduction . On CXR, consolidation is lobar and resembles streptococcus pneumonia. Pyogenic Liver Abscesses Caused by Klebsiella pneumoniae: US Appearance and Aspiration Findings. ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. [12,17] Aspiration pneumonia should always be suspected if the infiltrates are present bilaterally in the dependent or posterior portions of the lungs. Clin. Klebsiella pneumoniae(K. pneumoniae) is a Gram-negative, non-motile, capsulated, gas-producing enteric bacillus widely found in nature, and it belongs to the normal flora of the human oral cavity and intestine. Lippincott Williams &Wilkins. Hoffman NR, Preston FS. Lobar expansion (e.g. Imaging of Diseases of the Chest. E.Brant MW, A.Helms MC. The past 3 decades have seen the emergence of an invasive liver abscess syndrome caused by Klebsiella pneumoniae that may manifest with metastatic infection to the eye, brain, or lung [1, 2]. CT Appearance of Pyogenic Liver Abscesses Caused by Klebsiella pneumoniae. VCU Department of Radiology VCU Medical Center. Klebsiella is also responsible for a significant number of community-acquired infections. This organism can cause extensive pulmonary necrosis and frequent cavitation 1. Chronic Klebsiella pneumonia was diagnosed and ceftazidime was changed to ceftriaxone 1 g every 12 h for 2 weeks. (2009) ISBN:0723434964. Microbiol. The three most common patterns are lobar pneumonia, bronchopneumonia, and interstitial pneumonia. 53 (4): 481-6. It is one of the causes that could be suspected when there is cavitatory pneumonia +/- a bulging fissure sign. A helpful feature which may help to distinguish from pneumococcal pneumonia is that Klebsiella pneumonia develops cavitation in 30-50% of cases (in comparison, cavitation is rare in pneumococcal pneumonia). Massive necrosis (pulmonary gangrene) is a recognized complication. This occurs early and progresses quickly. K pneumoniae monomicrobial liver abscesses were associated with diabetes mellitus (P <.001), higher blood glucose levels at admission (P <.05), predominantly solid US appearances (P <.001), irregular or indistinct lesion margins (P <.05), less than 2 mL of pus aspirated (P <.001), and longer duration of antibiotic treatment (P <.05). There can b… Ono A. Klebsiella pneumoniae is a Gram-negative, non-motile, encapsulated, lactose-fermenting, facultative anaerobic, rod-shaped bacterium.It appears as a mucoid lactose fermenter on MacConkey agar.. The Brant and Helms Solution. 2011;140 (4_MeetingAbstracts): . A report of 11 cases and appraisal of antibiotic therapy. Nineteen cases were seen in the first half of 1958. Klebsiella spp. Authors S ... diagnostic radiology studies, therapeutic modalities and risk factors associated with mortality were studied. J Comput Assist Tomogr. These infections are particularly a problem among neonates, elderly and immunocompromised individuals. Since 1950, 76 proved cases of pneumonia due to Staphylococcus aureus have been seen at the Los Angeles County Hospital. In nosocomial pneumonia, patchy bronchial pneumonia is the most common finding and is likely caused by Gram-negative pathogens, especially Pseudomonas or Klebsiella. © 2005 - 2021 WebMD LLC. Klebsiella pneumoniae (K. pneumoniae) are bacteria that normally live in your intestines and feces. Klebsiella pneumoniae- Pathogenicity and Clinical Manifestations. Massive necrosis (pulmonary gangrene) is a recognized complication. Antibiotics sensitivity test was carried out toward 10 antibiotics using discs diffusion method. Chronic Klebsiella pneumonia: a rare manifestation of Klebsiella pneumonia. A helpful feature which may help to distinguish from pneumococcal pneumonia is that Klebsiella pneumonia develops cavitation in 30-50% of cases. Conversely, various pathogens give rise to identical radiologic findings; e.g., bronchopneumonia can be caused by, for example, Staphylococcus aureus, Klebsiella, Proteus, or Pseudomonas. There can be variable features on chest HRCT which can also depend on current other organisms. 129-138. Case of the Week: August 27-September 3, 2009. Klebsiella pneumoniae is a Gram-negative bacillus with worldwide distribution that usually causes respiratory and urinary tract infections, ... Four weeks after admission, following discussion with Radiology, a thoracic CT scan was performed for subsequent biopsy of one of the pulmonary lesions. Check for errors and try again. Gadkowski LB, Stout JE. Complications of Klebsiella pneumonia: CT evaluation. A helpful feature which may help to distinguish from pneumococcal pneumonia is that Klebsiella pneumonia develops cavitation in 30-50% of cases (in comparison, cavitation is rare in pneumococcal pneumonia). 01 Jul 2011 Radiology. Friedlander, C. Über die Pseudomyceten bei der acuten fibrinösen Pneumoniae. It has a high mortality rate of approximately 50% even with antimicrobial therapy. In the setting of pneumonia, infection with K. pneumoniae is confirmed by either sputum culture analysis, blood culture analysis or midstream urine depending upon the illness. Radiology 2007. This occurs early and progresses quickly. 27-05-2014 - Klebsiella pneumonia is refers to a pneumonia resulting from an infection from the organism Klebsiella pneumoniae. 8. Mosby Incorporated. 1 - 5 Although single case reports discuss the clinical presentation of pneumonia caused by Escherichia coli or Actinobacillus spp., 6, 7 to the authors’ knowledge no large retrospective studies describe the … 4. Among these, sporadic hvKp-related community-acquired pneumonia (CAP) is an acute-onset, rapidly progressing disease that can likely turn fatal, if left untreated. Results: The mean age was 58.7 years and the male to female ratio was 10:14. The disease is often overlooked in the Western physicians due to its rarity. Klebsiella pneumoniae is a gram negative organism that usually affects people with alcoholism or chronic debilitating diseases (similar to other gram -ve pneumonias). Continuous improvement of the lesion was found on follow-up chest X-rays. These bacteria are harmless when they’re in … bulging of the horizontal fissure in this case) is less common nowadays with modern antibiotic treatment. Acute Klebsiella pneumoniae pneumonia alone and with concurrent infection: comparison of clinical and thin-section CT findings. In comparison, cavitation is rare in pneumococcal pneumonia. the Western countries, Klebsiella pneumoniae invasive syn-drome (KPIS) should be alerted when patients present atypi-cal vague symptoms including fever, chill, nausea, vomiting, and right upper quadrant tenderness. Unable to process the form. This occurs early and progresses quickly. Recommended Articles. Massive necrosis (pulmonary gangrene) is a recognized complication. 7. Klebsiella pneumoniae is a gram negative organism that usually affects people with alcoholism or chronic debilitating diseases (similar to other gram -ve pneumonias). See additional information. Coronavirus: ... 2 Division of Diagnostic Radiology, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand. 769-776. Klebsiella pneumoniae is a Gram-negative bacteria and a well-known cause of community-acquired pneumonia, which accounts for less than 5% of all cases of pneumonia. The bacterium typically colonizes human mucosal … The Post-operative Abdomen - Surgicel … Also, lobar expansion is not specific for Klebsiella infection. Klebsiella pneumoniae renal abscess Zhonghua Yi Xue Za Zhi (Taipei). Cavitary pulmonary disease. Klebsiella pneumonia is a necrotizing process with a predilection for debilitated people. It is an important type of pneumonia because of its severity, high incidence of complications, and elevated mortality [1]. Klebsiella pneumoniae is among the most common Gram-negative bacteria encountered by physicians worldwide and accounts for 0.5-5.0% of all cases of pneumonia 2. The chest films of 58 patients with proved pneumonia due to Pseudomonas, Klebsiella, Enterobacter, Escherichia coli, Proteus, or Bacteroides were reviewed.Pseudomonas pneumonia was characterized by diffuse alveolar involvement with rapid progression to extensive macrocavitation. Klebsiella pneumonia usually results from aspiration of colonizing oropharyngeal microbes into the lower respiratory tract. However, in general, the type of microorganism implicated in pneumonia can be identified (bacteria, viruses, or fungi). The hypervirulence of these novel community-acquired strains is mediated in part by their hypermucoviscous phenotypes associated with K1 and K2 capsule serotypes [ 3–5 ]. Klebsiella pneumonia, also known as Friedländer pneumonia, refers to pneumonia resulting from an infection from the organism Klebsiella pneumoniae. Klebsiella pneumoniae is a gram-negative, encapsulated, non-motile bacterium that is found in the environment and has been associated with pneumonia in the alcoholic and diabetic patient population. Risk factors for Klebsiella pneumonia include alcoholism, diabetes mellitus, and COPD. by Wenlie Xie and Huixuan Jia. The organism Klebsiella pneumoniae was first described by German microbiologist Carl Friedländer (1847-1887) in 1882, in a series of patients with Klebsiella pneumonia 7,8. … Sputum analysis grew Klebsiella pneumoniae. Unable to process the form. Pulmonary infection can also be classified into several radiologic and pathologic patterns according to its morphologic features. Volume: 260 Issue: 1 pp. It is not possible radiologically to pinpoint the causative organism. Klebsiella [kleb−see−ell−uh] is a type of Gram-negative bacteria that can cause different types of healthcare-associated infections, including pneumonia, bloodstream infections, wound or surgical site infections, and meningitis. (1968) Diseases of the chest. K. pneumoniae is also a well-known cause of community-acquired pneumonia. Invasive community-acquired infections, including pyogenic liver abscesses, caused by hypervirulent Klebsiella pneumoniae (hvKp) strains have been well recognized worldwide. 2010;83 (994): 854-60. The 70 isolates were taken from diverse clinical specimens. 2. Klebsiella pneumoniae was first described by a German microbiologist and pathologist Carl Friedländer in 1882. The presence of gram-negative rods in Gram-stained smears suggests Klebsiella; they maybe capsulated and non-sporing. Often there can be extensive lobar opacification with air bronchograms. (2007) ISBN:B0011ZYZR2. The spectrum includes. Extensive right upper lobe consolidation, with bulging of the horizontal fissure. ADVERTISEMENT: Supporters see fewer/no ads. (2009) ISBN:0723434964. Klebsiella pneumoniae is a bacterium that normally lives inside human intestines, where it doesn't cause disease.. Figure Klebsiella pneumoniae liver abscess cases (n=123) in an outpatient parenteral antibiotic therapy (OPAT) cohort in Singapore, 2006–11 (n=2229) View Large Image Figure Viewer; Download Hi-res image Download (PPT) Roughly 70% of patients with K pneumoniae abscesses were men. 2008;21 (2): 305-33, table of contents. Klebsiella pneumoniae is a gram negative organism that usually affects people with alcoholism or chronic debilitating diseases (similar to other gram -ve pneumonias). Rev. 2000 Oct;63(10):721-8. Okada F, Ando Y, Honda K et-al. Klebsiella pneumonia | Radiology Reference Article | Radiopaedia.org. 87: 319. CHEST Journal. ; Material is inoculated into blood agar and Mac Conkey agar medium and incubated aerobically. Friedlander's pneumonia. All K. pneumoniae isolates were identified based on API 20 E and Vitek2 compact system. 1995;19 (2): 176-81. 3. Less common forms of infection include cellular bronchiolitis, septic embolism, miliary infection, and lung abscess. are commonly implicated as a cause of bacterial pneumonia in horses, but few reports describe the clinical presentation and progression of disease attributable to this organism. 6. On CXR, consolidation is lobar and resembles streptococcus pneumonia. Klebsiella species cause a wide range of diseases including pneumonia, urinary tract infections (UTIs), bloodstream infections and sepsis. To retrospectively compare the computed tomographic (CT) features of liver abscesses caused by Klebsiella pneumoniae with those caused by other bacterial pathogens. Volume: 242 Issue: 3 pp. Mosby Incorporated. Klebsiella species are a Gram-negative rod shaped bacteria belonging to the Enterobacteriaceae family. ADVERTISEMENT: Supporters see fewer/no ads, Please Note: You can also scroll through stacks with your mouse wheel or the keyboard arrow keys. Hansell DM. (1882) Virchow Arch. Often there can be extensive lobar opacification with air bronchograms. Imaging of Diseases of the Chest. ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. {"url":"/signup-modal-props.json?lang=us\u0026email="}. WebMD does not provide medical advice, diagnosis or treatment. 1. 5. All rights reserved. There tends to be a higher prevalence in older patients with alcoholism and debilitated hospitalized patients 3. Radiology 2011. {"url":"/signup-modal-props.json?lang=us\u0026email="}. On CXR, consolidation is lobar and resembles streptococcus pneumonia. Hansell DM. Path. It is one of the causes that could be suspected when there is cavitatory pneumonia +/- a bulging fissure sign. 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