Hepatic Histoplasmosis: An Update

Area of Science:

• Mycology
• Infectious Diseases
• Hepatology

Background:

• Histoplasma capsulatum is a prevalent cause of endemic mycosis globally.
• While typically self-limited in immunocompetent individuals, it causes opportunistic infections in immunocompromised patients.
• Disseminated histoplasmosis commonly involves the liver, but primary hepatobiliary infection is rare.

Purpose of the Study:

• To highlight the rare presentation of Histoplasma capsulatum as an isolated hepatobiliary infection.
• To emphasize the importance of considering histoplasmosis in hepatobiliary disease, irrespective of pulmonary involvement or immune status.
• To alert clinicians to this diagnostic possibility in both endemic and non-endemic regions.

Main Methods:

• Case review and literature synthesis.
• Diagnostic evaluation of hepatobiliary abnormalities.
• Clinical correlation of symptoms, immune status, and geographical exposure.

Main Results:

• Isolated hepatic histoplasmosis without primary pulmonary involvement is an uncommon but recognized clinical entity.
• The diagnosis requires careful evaluation, especially in patients with unexplained liver dysfunction.
• Histoplasmosis should be considered across a spectrum of patients, including immunocompetent individuals.

Conclusions:

• Clinicians must maintain a high index of suspicion for isolated hepatobiliary histoplasmosis.
• Prompt and thorough diagnostic workup is crucial for timely identification and management.
• Awareness of this presentation aids in appropriate patient care, regardless of endemicity or immune status.