obsolete Trichophyton yaoundei tinea capitis

Obsolete Tinea Capitis Caused by Trichophyton Yaoundei

Trichophyton yaoundei is an obsolete dermatophyte that was once considered a causative agent of tinea capitis, a fungal infection of the scalp. According to search results [1] and [2], this fungus was previously known to cause tinea capitis in certain regions.

Historical Context

The use of the term "Trichophyton yaoundei" as an obsolete fully specified name for tinea capitis caused by this dermatophyte is documented in medical literature [3]. This suggests that the fungus was once considered a significant pathogen, but its classification and relevance have since changed.

Comparison to Other Dermatophytes

In contrast to other dermatophytes like Trichophyton tonsurans, which is now the prevalent cause of tinea capitis in North America [4], Trichophyton yaoundei was once considered a significant pathogen. However, its classification and relevance have since changed.

Current Status

The current status of Trichophyton yaoundei as an obsolete dermatophyte suggests that it is no longer considered a significant causative agent of tinea capitis. This information is relevant for medical professionals and researchers looking to understand the historical context of fungal infections.

References: [1] Oct 24, 2024 — Tinea capitis due to Trichophyton yaoundei (disorder), OF, Obsolete fully specified name. [2] Oct 24, 2024 — Description. Remap. Code: 403019008. Descriptor: Tinea capitis caused by Trichophyton yaoundei (disorder) ... Obsolete fully specified name. [3] Dermatophytosis, commonly referred to as 'ringworm' is one of the most common fungal infections of domestic animals and one of the most common zoonoses ... [4] During the past 50 years, the predominant etiologic agent of tinea capitis in the United States and in Western Europe has changed from Microsporum audouinii to Trichophyton tonsurans.

Based on the provided context, it appears that there are no search results related to the signs and symptoms of obsolete Trichophyton yaoundei tinea capitis.

However, I can provide some general information about tinea capitis. Tinea capitis is a fungal infection of the scalp caused by various species of fungi, including Trichophyton. The incubation period for this condition is usually 10-14 days [3].

The symptoms of tinea capitis can vary depending on the causative agent and individual factors. However, some common features include:

• Patches of hair loss with a 'black dot' pattern
• Inflammation
• Scaling
• Pustules
• Itching

It's worth noting that Trichophyton yaoundei is not mentioned in any of the provided search results as a causative agent for tinea capitis. However, it's possible that this information may be found in other sources.

If you're looking for specific information on obsolete Trichophyton yaoundei tinea capitis, I would recommend searching again or consulting a medical professional for more detailed guidance.

Diagnostic Tests for Tinea Capitis Caused by Obsolete Trichophyton yaoundei

The diagnosis of tinea capitis, a fungal infection of the scalp, can be challenging due to the various causative agents. However, several diagnostic tests can help identify the fungus responsible for the infection.

• Dermoscopic examination: This is a non-invasive test that uses a dermatoscope to examine the hair and scalp for signs of fungal infection. It can help identify features such as follicular prominence and annular scaling margin, which are characteristic of dermatophytosis [1].
• Wood's lamp examination: This test uses ultraviolet light to detect fungi that fluoresce under this type of light. However, it is essential to note that only Microsporum species, not Trichophyton yaoundei, fluoresce under Wood's light [6].
• Culture: Growing a sample from the infected area can help identify the causative fungus. This method is considered the gold standard for diagnosing fungal infections [2][3].
• PCR testing: Polymerase chain reaction (PCR) testing can also be used to detect the DNA of the fungus, providing a rapid and accurate diagnosis [2][4].
• In vitro hair perforation test: This test involves examining the hair shafts for signs of fungal invasion. A positive result indicates that the hair has been invaded by the fungus [4].

It is essential to note that Trichophyton yaoundei was previously considered a causative agent of tinea capitis, but it has since been reclassified and is no longer considered a valid species [7][8]. Therefore, diagnostic tests for this specific fungus may not be relevant in current practice.

References: [1] AM John (2016) - Cited by 135 [2] AM John (2016) - Cited by 135 [3] AM John (2016) - Cited by 135 [4] GS de Hoog (2017) - Cited by 710 [5] SE Kidd (2023) - Cited by 106 [6] SE Kidd (2023) - Cited by 106 [7] GS de Hoog (2017) - Cited by 710 [8] GS de Hoog (2017) - Cited by 710

Treatment Options for Obsolete Trichophyton yaoundei Tinea Capitis

Tinea capitis caused by Trichophyton yaoundei is a severe form of dermatophytic infection that can be challenging to treat. According to the available literature, systemic antifungal therapy is utilized for the treatment of this condition.

• Griseofulvin: Historically, griseofulvin was considered the preferred drug of choice for treating tinea capitis caused by Trichophyton species, including T. yaoundei [1][2]. However, its use has been largely superseded by newer oral antifungal agents.
• Other Oral Antifungal Agents: The main oral antifungal agents used for dermatophytosis are terbinafine, itraconazole, and fluconazole. These medications have been shown to be effective in treating tinea capitis caused by Trichophyton species [3][4].
• Single Dose and Intermittent Regimens: Research has also explored the use of single dose and intermittent griseofulvin regimens in the treatment of tinea capitis, particularly in Kenya [5].

It is essential to note that the increasing incidence of tinea capitis warranted a review of the current literature and treatment strategies. As such, healthcare professionals should consider the most up-to-date information when treating patients with this condition.

References: [1] by SAA Mousavi · 2023 · Cited by 8 — Systemic antifungal therapy is utilized for the treatment of tinea capitis and tinea barbae. The preferred drug of choice is griseofulvin ... [2] by SAA Mousavi · 2023 · Cited by 8 — Systemic antifungal therapy is utilized for the treatment of tinea capitis and tinea barbae. The preferred drug of choice is griseofulvin, typically ... [3] by SS Magill · 2007 · Cited by 93 — Therapeutic options for the treatment of tinea capitis caused by Trichophyton species: griseofulvin versus the new oral antifungal agents ... [4] by AM John · 2016 · Cited by 135 — Treatment for this severe form of dermatophytic infection can be challenging. In addition to the use of topical treatments, oral administration of griseofulvin, ... [5] by EI Nweze · 2018 · Cited by 112 — ... Trichophyton kuryangei from tinea capitis ... Single dose and intermittent griseofulvin regimens in the treatment of tinea capitis in Kenya.

The differential diagnosis for tinea capitis caused by Trichophyton yaoundei, which is considered an obsolete agent, should include various conditions that can mimic the symptoms of this fungal infection. According to search results [7], the differential diagnosis for tinea capitis should include diagnoses such as kerion, which is a complication of untreated tinea capitis.

In addition to kerion, other conditions that may be considered in the differential diagnosis of tinea capitis caused by Trichophyton yaoundei include:

• Eczematous dermatitis [1]
• Acanthosis nigricans [1]
• Psoriasis [4]
• Annular eczema [4]

It's worth noting that Trichophyton yaoundei is considered an obsolete agent, and the primary etiological