Baylor University Medical Center Proceedings January 2014, Volume 27, Number 1 | Page 37

Laryngeal actinomycosis
Forrester Lensing, MD, Travis Abele, MD, Richard Wiggins III, MD, and Edward Quigley, MD, PhD

Actinomyces odontolyticus, a component of normal human flora, has
been implicated in cervicofacial actinomycosis, which most commonly
involves the perimandibular soft tissues and is characterized by slowly
progressive abscess and sinus tract formation. Actinomycosis has rarely
been reported to involve the larynx, and the imaging findings of laryngeal
involvement have not been reported. We present a case of laryngeal actinomycosis with findings on computed tomography, magnetic resonance
imaging, and positron emission tomography.

ervicofacial actinomycosis (CFA) is a rare but treatable
infection that is more commonly seen in patients with
poor dental hygiene, immunosuppressed patients, and
patients with previous mucosal injury to the upper aerodigestive tract. Actinomycosis rarely involves the larynx and may
be mistaken for a mucosal mass. We present a case of laryngeal
actinomycosis and illustrate its salient imaging findings on computed tomography (CT), magnetic resonance imaging (MRI), and
positron emission tomography (PET).

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