obsolete Microsporum audouinii tinea capitis

Tinea Capitis Caused by Microsporum Audouinii: A Rare Dermatophyte Infection

Tinea capitis, also known as ringworm of the scalp, is a fungal infection that affects the hair follicles and surrounding skin on the scalp. One of the rarest forms of this infection is caused by the dermatophyte Microsporum audouinii.

Characteristics of Microsporum Audouinii Tinea Capitis

• This type of tinea capitis is typically found in children, particularly those from Africa.
• It presents with symptoms such as localized alopecia (hair loss) and scaling on the scalp.
• The infection can cause mild to severe inflammation, leading to pruritic (itchy), scaly areas of alopecia.

Historical Significance

• Prior to the 1950s, Microsporum audouinii was responsible for most childhood epidemics of tinea capitis in the United States.
• This organism has been associated with outbreaks of tinea capitis in schools and other settings where children are in close proximity to each other.

References:

• [1] Microsporum audouinii is an anthropophilic dermatophyte common in Africa, causing tinea capitis and tinea corporis in children. (Source: 1)
• Tinea capitis caused by Microsporum audouinii (disorder) is a fully specified name for this condition. (Source: 3)
• The infection typically presents with localized alopecia and scaling on the scalp, but may include subtle findings of mild hair loss. (Source: 5)
• Prior to the 1950s, Microsporum audouinii was responsible for most childhood epidemics of tinea capitis in this country. (Source: 9)

Based on the provided context, here are the signs and symptoms of obsolete Microsporum audouinii tinea capitis:

Common Symptoms

• Severe dandruff-like infection on various parts of the scalp [1]
• Patches of hair loss due to fungal infection [1]
• Dry scaly areas, redness, and itchiness on the scalp [2]

Characteristics of Infected Hairs

• Dull, grayish, discolored appearance [3]
• Broken and shorter hairs in involved areas [3]

Other Symptoms

• Circular bald spot that's scaly, itchy, and red [4]
• Black dot on the scalp [4]
• Crusted lesions (scutula) around the base of infected hairs [4]

Clinical Manifestations

• Mild scaling with little hair loss to large inflammatory and pustular plaques with extensive alopecia [5]

These symptoms are associated with tinea capitis, a fungal disease caused by Microsporum audouinii. It's essential to note that these symptoms may vary in severity and presentation.

References: [1] - Context result 1 [2] - Context result 2 [3] - Context result 3 [4] - Context result 4 [5] - Context result 5

Diagnostic Tests for Obsolete Microsporum audouinii Tinea Capitis

The diagnosis of tinea capitis caused by the now less prevalent Microsporum audouinii can be confirmed through various laboratory tests. According to search results [1], direct KOH testing and culture are effective methods for diagnosing TC caused by M. audouinii.

• Direct KOH Testing: This test involves applying a potassium hydroxide solution to the infected hair or skin sample, which helps to dissolve the keratin and reveal the fungal elements. The presence of ectothrix parasitism in all samples [1] is indicative of Microsporum spp., including M. audouinii.
• Culture: Growing the fungus on Sabouraud agar can help identify the species-specific structures, such as colonies of Microsporum spp. [3]. Slide cultures on potato dextrose agar examined under light microscopy using

Treatment Options for Obsolete Microsporum audouinii Tinea Capitis

Tinea capitis, also known as ringworm of the scalp, is a fungal infection that affects the hair follicles and surrounding skin. Microsporum audouinii is an obsolete species of fungus that was once considered to be one of the primary causes of tinea capitis.

Historical Treatment Options

In the past, griseofulvin was considered to be the most effective treatment for tinea capitis caused by Microsporum audouinii. According to a study published in 1999 [2], griseoful

Differential Diagnosis of Obsolete Microsporum audouinii Tinea Capitis

Tinea capitis, also known as ringworm of the scalp, is a fungal infection caused by various species of dermatophytes. One such species, Microsporum audouinii, was once considered a common cause of tinea capitis, particularly in pre-pubertal schoolchildren [6]. However, with advancements in medical research and diagnostics, this particular species has been largely replaced by other causative agents.

Key Differential Diagnoses:

• Tinea capitis caused by zoophilic Microsporum canis: This species is now considered a more common cause of tinea capitis, especially in children who have contact with animals [5