Abstract. Human diseases caused by Haemophilus paraphrophilus (H. paraphrophilus) are unusual. The following case report describes a year-old man who. With Aggregatibacter aphrophilus, some isolates are dependent on V factor ( formerly Haemophilus paraphrophilus), while others are not (formerly Haemophilus. Actinobacillus actinomycetemcomitans, Haemophilus aphrophilus, transform Haemophilus paraphrophilus into the NAD-independent phenotype.
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Human diseases caused by Haemophilus paraphrophilus H. The following case report describes a year-old man who presented with pain and swelling of the right side of the face. Fine needle aspiration suggested a parotid gland abscess. Microbiological studies identified H.
This is the first time a parotid abscess has been found to be caused by this organism. This microorganism is a member of the indigenous flora of the biofilms that form on tooth surfaces parzphrophilus man [ 2 ].
Human diseases caused by this organism are rare. There are case reports regarding H. The parotid gland has never been reported to be involved by this organism. We parsphrophilus the first case of parotid gland abscess caused by H. Our patient is a year old man with HIV and diet-controlled hyperlipidemia, who presented to the dental office with a chief complaint of pain and swelling over the right side of the face and below the right ear over haemlphilus week.
Physical examination revealed intense pain and swelling over the affected area.
All performed routine laboratory tests were found to have values within normal limits. A right parotid gland abscess was suspected, and fine-needle aspiration was performed.
Cytopathologic examination of the aspirate confirmed the diagnosis.
The aspirate was also submitted for microbiological testing. The growth was present on a chocolate agar plate. Gram stain showed short, thin Gram-negative bacilli that were found to be beta-lactamase negative. The biochemical profile of our isolate is presented in Table 1.
Parotid Gland Abscess Caused by Haemophilus Paraphrophilus: A Case Report
The scores identify the organism as either H. A distinguishing reaction between these two organisms is the oxidase reaction that is positive for H.
Since the oxidase reaction was found to be positive, we identified the organism as H. The patient was successfully treated with IV Unasyn and Bactrim for four days and then switched to oral Augmentin and Bactrim for another 10 days. The existence of H. The microorganism has been found as a member of normal oral and pharyngeal flora and, as noted above, can cause inflammatory processes, often with abscess formation, at various sites.
However, there have been no reports on this organism as the cause of parotid gland infection. We now report H. Several underlying conditions have been associated with infections caused by H. To our knowledge, there was no evidence to support any similar associated condition in our patient, although HIV positivity implies immune deficiency that could have predisposed toward infection.
If the latter was the underlying cause, the finding of localized H. User Name Password Sign In. A Case Report Anton V. Previous Section Next Section. In this window In a new window. Table 1 Biochemical characteristics of the current isolate.
A New V-dependent Haemophilus species preferring increased co2 tension for growth and named Haemophilus paraphrophilus, nov. CrossRef Medline Google Scholar. Norskov-Lauritsen HaemopnilusKilian M.
Haemophilus paraphrophilus infection: a pitfall in laboratory diagnosis.
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Haemophilus paraphrophilus – Wikipedia
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