Subcutaneous Flashcards
skin trauma/prick
inoculation mycoses usually confined to subcutaneous tissues
Diseases are usually CHRONIC IN NATURE
SUBCUTANEOUS MYCOSES
AKA: Rose Gardener’s Disease, Rose Handler’s Disease
Sporotrichosis
Causative agent of Sporotrichosis
Sporothrix schenckii
Pathology: Granuloma Formation in Tissues
• Splendore-Hoeppli Phenomenon (Asteroid Bodies)
• Fungus is DIMORPHIC
• Yeast: Cigar Shaped
• Mold: Flowerette or daisy head appearance
• Specimen: Skin biopsy, aspirate, pus or curetting
Sporothrix schenckii
Chronic, localized Subepidermal infection causing Keloidal blastomycosis.
Lobomycosis
Causative agent of Lobomycosis
Lacazia loboi (formely Loboa loboi)
• Monomorphic
• looks like P. brasiliensis (dimorphic)
• Tissues: multiple budding cells in chain
Lacazia loboi (formely Loboa loboi)
Causative Agent of Rhinosporidiosis
Rhinosporidium seeberi
• Found in water.
• Polyploid masses in nose, pharynx
• Tissue form: sporangium - sac-like structure filled with endospores.
• Looks like C. immitis- smaller
Rhinosporidium seeberi
Chronic Inflammatory or Granulamatous Disease restriced in the nasal mucosa.
Rhinoentomophthoromycosis
Causative agent of Rhinoentomophthoromycosis
Conidiobolus coronatus/ Entomophthora coronata,
a member of Zygomycetes Predisposition: 80% males.
Conidiobolus coronatus/ Entomophthora coronata,
AKA: Madura foot, Maduromycosis Caused by a variety of organisms such as:
• fungi (eumycotic mycetomas)
• bacteria (actinomycotic mycetomas
Mycetoma/ Madura foot agents
– Madurella mycetomatis (most common), Madurella grisea, Exophiala jeanselemei, Acremonium falciforme, Pseudallescheria boydii
Eumycotic of Mycetoma
Actinomadura, Nocardia, Streptomyces
ACTINOMYCOTIC ACTINOMYCETES: of mycetomq