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Related Concept Videos

Fungal Group Zygomycota01:29

Fungal Group Zygomycota

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Zygomycota, previously classified as a distinct fungal group, are primarily terrestrial, saprophytic molds that play a crucial role as decomposers. Recent phylogenetic studies have revealed that these fungi are now divided into two major clades — Mucoromycota, which includes many symbiotic species, and Zoopagomycota, which primarily consists of parasitic and pathogenic fungi. These groups exhibit distinct ecological roles and reproductive strategies while sharing key structural and...
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Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
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Phylum Ascomycota, a major division within the subkingdom Dikarya, comprises a diverse range of fungal species, including both unicellular yeasts and filamentous molds such as Aspergillus and Penicillium. These fungi thrive in a variety of habitats, from aquatic ecosystems to terrestrial environments, playing crucial ecological and economic roles.Morphology and ReproductionThe defining characteristic of Ascomycetes, commonly referred to as sac fungi, is the ascus—a sac-like structure that...
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Phaeohyphomycosis: Cytomorphologic Evaluation in Eleven Cases.

Reetu Kundu1, Uma Handa2, Rajpal Singh Punia2

  • 1Government Medical College and Hospital, Chandigarh, India, reetukundu@gmail.com.

Acta Cytologica
|March 24, 2020
PubMed
Summary

Phaeohyphomycosis, a fungal infection, can manifest in various ways. Cytology is crucial for rapid diagnosis and prompt treatment of this rare condition.

Keywords:
CytomorphologyFine needle aspiration cytologyPhaeohyphomycosisSubcutaneous swelling

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Area of Science:

  • Medical Mycology
  • Diagnostic Cytopathology

Background:

  • Phaeohyphomycosis is an emerging global mycosis caused by phaeoid fungi.
  • It presents with diverse clinical manifestations, making diagnosis challenging.

Purpose of the Study:

  • To evaluate the diagnostic utility of cytology in phaeohyphomycosis.
  • To highlight the morphologic features of phaeoid fungi in cytologic specimens.

Main Methods:

  • Retrospective analysis of 11 cases diagnosed via cytology over 6 years.
  • Confirmation through histopathology and fungal culture.

Main Results:

  • Subcutaneous swellings were the most common presentation (9/11 cases).
  • Cytologic smears revealed characteristic fungal profiles, visualized with Masson-Fontana stain.
  • 5 cases correctly diagnosed as phaeohyphomycosis on cytology; 3 misdiagnosed as Aspergillus/Candida.

Conclusions:

  • Phaeoid fungi are infrequently encountered in routine cytology.
  • Awareness of morphologic features aids accurate diagnosis.
  • Fine needle aspiration cytology offers rapid diagnosis for timely intervention.