Related Experiment Video
Updated: Jan 29, 2026

Isolating Nasal Olfactory Stem Cells from Rodents or Humans
Published on: August 22, 2011
Nasal septum ulcer as an isolated manifestation of histoplasmosis
Maria C M Pedroso1, Amanda B de Araújo1, Agrício N Crespo1
1Department of Otorhinolaryngology and Head and Neck Surgery, University of Campinas/UNICAMP, Brazil.
Abstract:
Histoplasmosis is an infection caused by the dimorphic fungus Histoplasma capsulatum, which is saprophyte of contaminated soil. In the immunocompetent host, the symptoms of histoplasmosis tend to be mild or even non-existent. In immunocompromised patients, the manifestations may be more severe and the disease manifests itself in a disseminated form, with high mortality rates. Isolated mucosal lesions are infrequent and the purpose of this report is to describe an unusual case of nasal septum ulcer as an isolated clinical manifestation of the disease.
Insights
Histoplasmosis, a fungal infection, typically causes mild symptoms in healthy individuals. This report details a rare case of a nasal septum ulcer as the sole manifestation of histoplasmosis in an immunocompromised patient.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Clinical Case Reports
Background:
- Histoplasmosis is caused by the dimorphic fungus *Histoplasma capsulatum*, found in soil.
- In immunocompetent individuals, infection is often asymptomatic or mild.
- Immunocompromised patients face severe, disseminated disease with high mortality.
Observation:
- This report presents an unusual case of histoplasmosis.
- The patient exhibited an isolated ulcer on the nasal septum.
- This presentation is infrequent for histoplasmosis.
Findings:
- The case highlights a rare clinical manifestation of histoplasmosis.
- An isolated nasal septum ulcer was the primary symptom.
- This underscores the varied presentations of fungal infections.
Implications:
- Recognizing rare presentations is crucial for timely diagnosis.
- Clinicians should consider histoplasmosis in immunocompromised patients with unusual lesions.
- This case expands the understanding of histoplasmosis's clinical spectrum.
Related Concept Videos
Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
Nose and Nasal Cavity
Peptic Ulcer Disease II: Pathophysiology
Damaging agents such as Helicobacter pylori, gastric acid, pepsin, and nonsteroidal anti-inflammatory drugs (NSAIDs) can weaken the mucosal defense, allowing hydrogen ions to infiltrate back and harm epithelial cells.
Administering Oxygen by Nasal Cannula
Nasal Cannulas
A nasal cannula is a lightweight tube split into two prongs placed in the nostrils,...
Peptic Ulcer Disease I: Introduction
An acute ulcer, marked by superficial erosion and minimal inflammation, swiftly resolves upon identifying and addressing the underlying cause. In contrast, a chronic ulcer persists, potentially eroding through the muscular wall and forming fibrous tissue.
Peptic ulcers can also be...
Peptic Ulcer Disease IV: Management
The therapeutic approach involves ensuring adequate rest, implementing drug therapy, promoting smoking cessation, making dietary modifications, and emphasizing long-term follow-up care.
Pharmacological management
The prevailing therapy for peptic ulcers involves a combination of managing the patient's current...

