Related Experiment Video
Updated: May 9, 2026

The Bovine Lung in Biomedical Research: Visually Guided Bronchoscopy, Intrabronchial Inoculation and In Vivo Sampling Techniques
Published on: July 3, 2014
Laryngotracheal rhinosporidiosis
J Madana1, Deeke Yolmo, S Gopalakrishnan
1Division of Head and Neck Oncology, Jewish General Hospital, Montreal, QC H3T 1E2, Canada. maddyy@gmail.com
Abstract:
Rhinosporidiosis is a chronic granulomatous disease caused by Rhinosporidium seeberi. It usually affects mucous membranes of the nose, nasopharynx, and ocular conjunctiva. Cutaneous, laryngeal, tracheal, genital, and bony dissemination is rare. Laryngotracheal involvement poses many diagnostic and therapeutic challenges. A 45-year-old South Indian man presented with complaints of a mass in both nostrils for 2 years, associated with progressive hoarseness of voice and difficulty in breathing for 6 months. Rhinosporidial lesions were seen bilaterally in the nasal cavity. Telescopic and fiberoptic laryngoscopic examinations showed reddish, strawberry-like masses with whitish spots on their surface involving the larynx and trachea. Computed tomography of the head and neck revealed soft-tissue mass lesions involving the bilateral nasal cavities and nasopharynx, extending to the oropharynx and involving the larynx and trachea. A preliminary tracheostomy was performed, followed by direct laryngoscopic excision of the laryngeal lesions and rigid-bronchoscopy-guided excision of the tracheal lesions. The patient was prescribed dapsone and advised to take it for 2 years. At 2 years of follow-up, there was no recurrence.
Related Concept Videos
Microbiota of the Respiratory Tract
Bacterial Phylum Spirochaetes
Atypical Pneumonia
Diphtheria
Pneumonia I: Introduction
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Pneumonia I: Introduction
