Subject(s)
Immunocompromised Host , Retropharyngeal Abscess/diagnosis , Tuberculosis, Spinal/diagnosis , Adult , Diagnosis, Differential , Humans , Laryngoscopy , Magnetic Resonance Imaging , Male , Retropharyngeal Abscess/etiology , Retropharyngeal Abscess/immunology , Tomography, X-Ray Computed , Tuberculosis, Spinal/complications , Tuberculosis, Spinal/immunologySubject(s)
Actinomycosis/microbiology , Immunocompromised Host , Retropharyngeal Abscess/microbiology , Actinomycosis/immunology , Actinomycosis/pathology , Actinomycosis/surgery , Anti-Bacterial Agents/administration & dosage , Dermatomyositis/complications , Dermatomyositis/drug therapy , Diagnosis, Differential , Doxycycline/administration & dosage , Drug Combinations , Humans , Injections, Intravenous , Male , Middle Aged , Ofloxacin/administration & dosage , Retropharyngeal Abscess/immunology , Retropharyngeal Abscess/pathology , Retropharyngeal Abscess/surgery , Stomach Neoplasms/complications , Stomach Neoplasms/drug therapyABSTRACT
Retropharyngeal abscess can be a life-threatening emergency with potential for airway compromise. We report a case of retropharyngeal abscess caused by Kingella denitrificans in a 66-year-old Caucasian man taking low-dose methotrexate for psoriatic arthritis. K denitrificans has not been previously reported as a cause of retropharyngeal abscess. K denitrificans, along with other Kingella species, is often found to be part of the normal upper respiratory tract flora. Potentially life-threatening complications of retropharyngeal abscess can occur in immunocompromised patients. Although complications of immunosuppression are thought to be rare with the use of low-dose pulse methotrexate for non-neoplastic conditions, such complications with prolonged use of low-dose pulse methotrexate may be seen.
