Intraoral phaeohyphomycosis

Yeshwant B Rawal1, John R Kalmar

  • 1Department of Diagnostic Sciences and Oral Medicine, College of Dentistry, University of Tennessee Health Sciences Center, 875 Union Avenue, Memphis, TN 38163, USA. yrawal@uthsc.edu

Insights

Phaeohyphomycosis, a fungal infection, rarely affects the mouth. This case highlights a painful oral nodule in a healthy child, emphasizing the need for accurate diagnosis.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Oral Pathology

Background:

  • Phaeohyphomycosis is caused by darkly pigmented fungi.
  • Systemic infections are common in immunocompromised individuals.
  • Subcutaneous abscesses can occur in healthy hosts.

Observation:

  • A rare intraoral phaeohyphomycosis case is presented.
  • The patient was a 12-year-old healthy male.
  • Lesions appeared as a painful nodule on the hard palate.

Findings:

  • Surgical excision of the oral mass was performed.
  • Histopathologic examination confirmed the diagnosis.
  • The fungal elements were identified within the tissue.

Implications:

  • This case expands the known clinical presentations of phaeohyphomycosis.
  • Early diagnosis and treatment are crucial for favorable outcomes.
  • Further research into oral manifestations in healthy individuals is warranted.

Related Concept Videos

Fungal Phylum Microsporidia01:28

Fungal Phylum Microsporidia

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...
Fungal Group Zygomycota01:29

Fungal Group Zygomycota

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...
Skin Diseases and Disorders01:23

Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Fungal Phylum Ascomycota01:28

Fungal Phylum Ascomycota

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...
Oral Cavity01:11

Oral Cavity

The oral cavity, or the mouth, is a complex structure in humans that plays a vital role in our day-to-day lives. Its role is not only in chewing and swallowing food; it also plays a role in speech and facial expressions.
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
Fungal Phylum Basidiomycota01:26

Fungal Phylum Basidiomycota

Basidiomycota is a diverse phylum of fungi that includes ecologically significant decomposers such as white rot fungi, symbionts like mycorrhizal fungi, plant pathogens such as rusts and smuts, and edible species like Agaricus bisporus (the common button mushroom). These fungi play crucial roles in nutrient cycling, symbiotic relationships, and even human health. Their defining feature is the basidium, a microscopic club-shaped structure responsible for producing basidiospores.Fruiting Bodies...