Isolated Aspergillus Laryngitis: Spectrum, Management, and Review of Literature

Isolated aspergillus laryngitis is rare and often diagnosed after surgical excision or biopsy for a suspected premalignant or malignant pathology. Unlike other systemic or localized aspergillosis, there are no specific guidelines for isolated laryngeal aspergillosis. Our experience of dealing with a wide variety of isolated laryngeal aspergillosis showed that this entity is very responsive to medical therapy, making extensive debridement (as often carried out in surgically accessible aspergillosis) unnecessary as it would invariably lead to long-term dysphonia.

A retrospective analysis of all cases of isolated aspergillus laryngitis that presented to our hospital over the past 5 years was carried out. All patients with confirmed histopathological diagnosis of aspergillus infection were included.

Twelve patients (five males and seven females) aged 28-54 years, who were diagnosed with aspergillus laryngitis presented with dysphonia. The most common involved site was the true vocal cords. All patients underwent cautious biopsies either in the operating theatre or in-office using a channeled fiber-optic laryngoscope. On histopathological examination, eight had invasive aspergillus infection while others showed variety of noninvasive involvement including colonization of cysts and carcinoma in situ. The most common species isolated was Aspergillus fumigatus. Appropriate antifungal chemotherapy was prescribed after ruling out systemic involvement. None of the patients showed recurrence or residual lesions on follow-up and reported significantly improved voice.

This study highlights the wide spectrum of presentation of isolated aspergillus laryngitis with Aspergillus fumigatus being the most common organism isolated. Even the invasive variant is a medically treatable condition with voriconazole being the drug of choice. The importance of cautious biopsies and resections for voice preservation is also emphasized. To our knowledge, this is the largest report on isolated aspergillus laryngitis.