Neutropenia

Criteria and Decision Framework for Differentiating True Infection from Colonization or Contamination by Aspergillus niger in Cancer Patients

by
Aspergillus niger growth on SDA

Evaluate the Clinical Context Sample Collection & Repeatability Microscopy & Direct Detection Quantitative Culture & Sterility of Site Serological & Molecular Evidence Radiological Correlation Practical Interpretation Framework Finding Likely Contaminant Possible Colonizer Likely Pathogen Single isolate from 1 sample ✅ ✅ ❌ Repeated isolation from …

Read more

Fungemia-Introduction, Common Fungi, Clinical Feature, Lab Diagnosis, Treatment, and Prevention

by
Blood fungal culture bottles containing a biphasic medium used for detecting fungal growth in fungemic patients

Introduction Fungemia refers to the presence of fungi in the bloodstream, indicating systemic fungal infection. Candida species are most commonly responsible, but other yeasts and molds may also invade the bloodstream. Fungemia is a medical emergency, especially in ICU patients, immunocompromised hosts, post-surgical cases, and …

Read more

Fungal Pneumonia-Introduction, Common fungi, Clinical Feature, Lab Diagnosis, Treatment, and Prevention

by
Aspergillus fumigatus growth on Sabouraud dextrose agar (SDA) plate

Introduction Fungal pneumonia or invasive fungal pulmonary infection is often life-threatening, especially in immunocompromised patients, such as those with cancer, undergoing chemotherapy, or with HIV/AIDS. pulmonary inflammation caused by inhaled fungal spores or hematogenous fungal spread, leading to pneumonia-like illness. Common Fungi Causing Pulmonary Infections: …

Read more

Common Invasive Fungal Pathogens in Cancer Patients: Introduction, List, Risk factors, and Keynotes

by
Common Invasive Fungal Pathogens in Cancer Patients- Introduction, List, Risk factors, and Keynotes

Introduction Common invasive fungal pathogens that frequently affect cancer patients, especially those who are immunocompromised due to chemotherapy, hematologic malignancies, or bone marrow/stem cell transplants. List of Common Invasive Fungal Pathogens 1. Candida species Causes: Candidemia, disseminated candidiasisRisk: Neutropenia, central venous catheter, broad-spectrum antibiotics 2. …

Read more

Candida tropicalis: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

by
Various Candida species grew on Candida CHROMAgar -Candida albicans (green), Candida tropicalis (cream-colored to light pink colonies), Candida glabrata (purple to lavender-color), Candida krusei(dark blue to mauve colonies), and Candida parapsilosis (cream-colored) as shown in the figure.

Introduction Candida tropicalis is a species of yeast, belonging to the Candida genus, commonly found in the environment and on the human body as part of the normal microbial flora. Similar to other Candida species, it can exist as a commensal organism, coexisting harmlessly with …

Read more

Candida glabrata: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

by
Yeast cells and hyphae of Candida glabrata in Giemsa stained smear of sputum microscopy at a magnification of 1000X

Introduction Candida glabrata is a species of yeast, specifically a type of fungus, that belongs to the Candida genus. It is commonly found in the environment and is also part of the normal microbial flora on the skin and mucous membranes of humans. While it …

Read more