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Isolation, Behavioral Identification, and Pathogenicity Assessment of Entomopathogenic Fungi from a Forest Wood Borer
Published on: September 29, 2023
Unusual presentation of entomophthoromycosis
R C Michael1, J S Michael, M S Mathews
1Department of ENT, Christian Medical College, Vellore, Tamil Nadu, India. rajmike@hotmail.co.uk
Abstract:
Rhinoentomophthoromycosis caused by Conidiobolus sp commonly presents as a chronic granulomatous lesion that affects the rhinofacial subcutaneous tissue. We present an 18-year-old girl who presented with progressive bilateral proptosis and loss of vision since 2 weeks. Biopsy and fungal cultures confirmed diagnosis of Conidiobolus sp infection of the paranasal sinuses bilaterally with orbital extension and blindness. The clinical picture was complicated by the presence of sputum-positive cavitatory pulmonary tuberculosis, which was diagnosed at the same time. To our knowledge, this is the first such case to be reported from India. We also discuss the management of entomophthoromycosis. Despite many reports of success, there remains no consensus on the treatment of Conidiobolus infections of the nose and the paranasal sinuses with antifungal agents.
Insights
This case report details rhinoentomophthoromycosis caused by Conidiobolus sp in an 18-year-old Indian girl, complicated by pulmonary tuberculosis. The study highlights the challenges in managing this rare fungal infection affecting the sinuses and orbits.
Area of Science:
- Mycology
- Infectious Diseases
- Ophthalmology
Background:
- Rhinoentomophthoromycosis, a fungal infection caused by Conidiobolus species, typically manifests as chronic granulomatous lesions in the rhinofacial subcutaneous tissue.
- Orbital involvement and vision loss are rare but severe complications of Conidiobolus infections.
Observation:
- An 18-year-old female presented with rapidly progressing bilateral proptosis and vision loss.
- Fungal cultures and biopsy confirmed Conidiobolus sp infection of the paranasal sinuses with orbital extension, leading to blindness.
- The patient was concurrently diagnosed with sputum-positive cavitatory pulmonary tuberculosis.
Findings:
- This represents the first reported case of rhinoentomophthoromycosis with orbital extension and concurrent pulmonary tuberculosis from India.
- The diagnosis was confirmed through histopathological examination and fungal cultures.
- The patient experienced irreversible vision loss due to the extensive orbital fungal infection.
Implications:
- This case underscores the aggressive potential of Conidiobolus sp infections, particularly with orbital invasion.
- Co-infection with tuberculosis presents a significant management challenge, requiring simultaneous treatment of both conditions.
- There is no established consensus on the optimal antifungal treatment for Conidiobolus infections of the sinuses and orbits, necessitating further research.
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