YEAST

  1. Candida albicans
  2. Pityrosporum: pityriasis versicolor & seborrheic dermatitis

Candida albicans

  • It is a commensal flora of the gut which become pathogenic when the immune status of the person changed as in the following conditions:
    • Physiological (old age, neonate and pregnancy)
    • Pathological (DM, HIV and organ transplant)
    • Long course of Antibiotics

Candida albicans

Mucosal Candidiasis

  1. Oral candidiasis i. Oral thrush ii. Angular cheilitis
  2. Genital candidiasis
Oral candidiasis

Oral candidiasis: thrush can be removed by rubbing with gauze

Candidiasis of the tongue

Angular cheilitis

Candida groin infection

satellite lesion seen in candiasis papule pastules at margins

Pityriasis versicolor

Pityrosporum orbiculare

  • Asymptomatic
  • Well demarcated brown patches over the trunk and upper extremities

may appear specific time, with increased temperature or humidity or exercise

Mycetoma (Madura foot)

  • Various species of fungus or actinomycetes may be involved.
  • They gain access usually to the feet or legs, via a penetrating wound.
  • The area becomes lumpy and distorted and developing multiple sinuses.

discharge yellowish granule from sinuses

Pus exuding from these sinuses shows tiny diagnostic granules. Treatment

  • is Surgical and medical by systemic antibiotics or antifungal drugs, depending on the organism isolated.