Intranasal Rhinosporidosis: A Case Report of a Rare Disease

Case Report

J Bacteriol Mycol. 2022; 9(1): 1195.

Intranasal Rhinosporidosis: A Case Report of a Rare Disease

Kenna E¹*, Djomou F², Ngo Nyeki A², Vouffo F³, Weledji E¹, Njock R²

1Regional Hospital Limbe, S.W. Region, Cameroon

2Department of Ear, Nose & Throat, Faculty of Medicine, Yaounde, Cameroon

3University Teaching Hospital, Yaounde, Cameroon

*Corresponding author: Kenna Ernest, Regional Hospital Limbe, S.W. Region, Cameroon

Received: January 19, 2022; Accepted: February 12, 2022; Published: February 19, 2022


Rhinosporidiosisis a rare mycotic disease caused by Rhinosporidiumseeberithat affects both humans and animals. We report the case of a 12-year-old girl who presented with a six month history of a progressive right nasal obstruction and ipsilateral epistaxis. Clinical examination revealed a pedicled polyp on the underside of the right lower cornea of the right nostril. Histological examination of the excised polyp confirmed a rhinosporidosis. Follow-up after 2 years showed no recurrence. Although rare, it is an important differential diagnosis of a nasal polyp for a general physician to be aware of.

Keywords: Nose; Rhinosporidiosis


Rhinosporidiosis is a rare mycotic disease caused by Rhinosporidiumseeberi. It affects both humans and animals, especially pets [1]. Human infection occurs through contact with stagnant fresh water harbouring the fungi. Although it is widely considered as a fungus, Rhinosporidiumseeberi has never been cultured in the laboratory, but microscopy shows the morphological characteristics of fungi and protozoa [2]. Direct human-to-human contamination has not been demonstrated and the disease manifests itself as a polypoid lesion, most often intranasal in location. Rare cases have been described on the conjunctiva, nasopharynx, rectum, vagina, urethra, mouth and skin. Rhinosporidiosis is worldwide. It is endemic in India, Sri Lanka and South America which account for 85% of reported cases [1,3]. In Africa, until 1990, the majority of reported cases came from Uganda (54.8%) and South Africa (18.3%). This is the third reported case in Cameroon [4,5]. Because of the lack of published reports this may give a false impression of the disappearance of the disease in the country

Case Presentation

A 12-year-old female child was admitted electively for management of a progressive right nasal obstruction and homolateral epistaxis. Physical examination without preparation of the right nasal fossa showed a pedicled polyp attached to the underside of the right lower nasal turbinate. This excrescence, which had a rosaceous appearan bled easily on contact and was non-tender. The left nostril was free and the rest of the ear, nose and throat ENT, and general examination were normal. The clinical impression was a benign tumor of the right nasal fossa. After right nasal preparation with topical xylocaine naphazozoline, there was a spontaneous reduction in the volume of the mass, which facilitated the resection at its base using electrocautery. This coarsely lamellar mass was sent in a 10% formaldehyde solution for a histopathological analysis [6]. The histology report showed macroscopically a pinkish-colored friable tissue fragment of 2.3cm in length. The microscopic analysis showed a squamous or respiratory epithelium with focal hyperplasticity without cytological atypia of its surface. The chorion is the site of a dense lymphocytic granuloma, without epithelioid cells and within which numerous thick-walled sporangia of different ages are present. Some are intact and filled with endospores. The others have a parietal opening through which endospores are released into the surrounding tissue (Figure 1). The last, more numerous ones are empty and keep their walls thick (Figure 2).

Citation: Kenna E, Djomou F, Ngo Nyeki A, Vouffo F, Weledji E and Njock R. Intranasal Rhinosporidosis: A Case Report of a Rare Disease. J Bacteriol Mycol. 2022; 9(1): 1195.