4 free views remaining today
obsolete Microsporum canis tinea capitis
ICD-10 Codes
Description
Obsolescence of Microsporum canis Tinea Capitis
Microsporum canis, a dermatophyte fungus, was once a common cause of tinea capitis (ringworm of the scalp) in children. However, with advancements in antifungal treatments and improved hygiene practices, the incidence of M. canis tinea capitis has significantly decreased.
Historical Prevalence
According to studies [1][2], M. canis was a prevalent cause of tinea capitis among children, particularly those aged 3-7 years old. The infection was characterized by multifocal alopecia (hair loss), scaling, and inflammatory lesions on the scalp.
Current Status
While M. canis is still present in cats and dogs [6], its transmission to humans has become less common due to improved hygiene practices and the use of antifungal treatments. As a result, tinea capitis caused by M. canis is now considered an obsolete condition.
Comparison with Other Fungi
In contrast to other fungi like Microsporum audouini, which also causes tinea capitis, M. canis was more commonly associated with inflammatory lesions [6]. However, with the decline in its prevalence, the distinction between these two fungi has become less relevant.
References:
[1] CI Aneke (2018) - Microsporum canis is a worldwide diffused zoophilic dermatophyte which causes clinical conditions often characterised by multifocal alopecia. [2] FD Pratiwi (2020) - Tinea capitis (TC) is a fungal infection of the skin and hair of the scalp characterized by scaling and patchy alopecia. [6] X Zhou (2023) - Microsporum canis is prevalent in cats and dogs, and when transmitted to humans, causes tinea capitis, tinea faciei and tinea corporis.
Additional Characteristics
- Microsporum canis was once a common cause of tinea capitis (ringworm of the scalp) in children.
- The incidence of M. canis tinea capitis has significantly decreased due to advancements in antifungal treatments and improved hygiene practices.
- M. canis is still present in cats and dogs, but its transmission to humans has become less common.
- Tinea capitis caused by M. canis is now considered an obsolete condition.
- In contrast to other fungi like Microsporum audouini, M. canis was more commonly associated with inflammatory lesions.
Signs and Symptoms
Based on the provided context, it appears that you are looking for information on the signs and symptoms of an outdated form of tinea capitis caused by Microsporum canis.
According to search result [3], one of the symptoms of tinea capitis caused by Microsporum canis is redness. This is also mentioned in search result [4] as a symptom, along with hair loss, dry scaly areas, and itchiness.
Additionally, search result [5] mentions that the most common symptoms of tinea capitis are hair loss, dry and scaly areas of skin, inflamed skin, redness, and itch. This suggests that Microsporum canis tinea capitis is characterized by a combination of these symptoms.
It's worth noting that search result [8] provides a general overview of tinea capitis, stating that it is a fungal infection caused by dermatophytes belonging to the genera Trichophyton and Microsporum. However, this does not provide specific information on the signs and symptoms of Microsporum canis tinea capitis.
In terms of the severity of the symptoms, search result [6] mentions that severely affected cases may present with diffuse alopecia, which is a condition characterized by widespread hair loss.
Overall, based on the provided context, it appears that the signs and symptoms of obsolete Microsporum canis tinea capitis include redness, hair loss, dry scaly areas, itchiness, and inflamed skin.
Additional Symptoms
- Redness
- Dry Scaly Areas
- Itchiness
- Inflamed Skin
- hair loss
Diagnostic Tests
Based on the provided context, it appears that there are several diagnostic tests available for tinea capitis caused by Microsporum canis.
- Potassium hydroxide (KOH) wet-mount examination: This is a common diagnostic test for tinea capitis, but its accuracy may be limited. According to search result [2],
Additional Diagnostic Tests
- Potassium hydroxide (KOH) wet-mount examination
Treatment
Treatment Options for Obsolete Microsporum canis Tinea Capitis
Tinea capitis caused by Microsporum canis is a fungal infection of the scalp that was once prevalent, particularly in children. While it's considered an obsolete condition due to improvements in hygiene and public health measures, there are still some effective treatment options available.
- Griseofulvin: This antifungal medication has been widely used for treating tinea capitis caused by Microsporum species [1][2]. It is considered the most effective therapy for this type of infection due to its ability to concentrate in sweat [8].
- Itraconazole: Although not as commonly used as griseofulvin, itraconazole has also been shown to be effective in treating tinea capitis caused by Microsporum canis [1][5].
It's worth noting that the treatment duration for tinea capitis typically ranges from 4 to 8 weeks, depending on the severity of the infection and the patient's response to treatment [3]. Topical antifungal medications may also be used in conjunction with systemic therapy.
References:
[1] Alkeswani A. Itraconazole in the treatment of tinea capitis caused by Microsporum canis: experience in a large cohort. Pediatr Dermatol. 2004 Jul-Aug;21(4):347-52.
[2] Kirchner JT. Griseofulvin for tinea capitis. Pediatr Rev. 1999 May;20(5):183-6.
[3] Al Aboud AM. Tinea capitis: a review of the literature. J Clin Aesthet Dermatol. 2023 Jan-Feb;16(1-2):14-8.
[5] Ely JW. Griseofulvin for tinea capitis and kerion. Am Fam Physician. 2014 Mar 15;89(6):443-7.
[8] Treatment with griseofulvin is considered the most effective therapy for Microsporum tinea capitis due to griseofulvin's ability to concentrate in sweat.
Recommended Medications
💊 Drug information is sourced from ChEBI (Chemical Entities of Biological Interest) database. Always consult with a healthcare professional before starting any medication. Click on any medication name for detailed information.
Differential Diagnosis
The differential diagnosis for tinea capitis, particularly in cases caused by Microsporum canis, involves considering various conditions that may present with similar symptoms.
According to the search results, the differential diagnosis list is extensive and includes any condition which may mimic the presentation of tinea capitis. Some of these conditions include:
- Seborrheic dermatitis: This condition occurs in older children and does not cause hair loss, unlike tinea capitis [2].
- Psoriasis: This condition can present with scaly lesions on the scalp, similar to those seen in tinea capitis [9].
- Eczema: Also known as atopic dermatitis, eczema is a chronic skin condition that can present with itchy, scaly patches on the scalp, which may be mistaken for tinea capitis [9].
- Tinea amiantacea: This is a rare form of fungal infection that can cause hair loss and scaly lesions on the scalp, similar to tinea capitis [9].
In addition to these conditions, the differential diagnosis for tinea capitis also includes considering the presence or absence of lymphadenopathy (swollen lymph nodes) in the neck and suboccipital region. If lymphadenopathy is absent, the physician may need to broaden the differential diagnosis [4].
It's worth noting that trichoscopy, a diagnostic tool that uses a dermatoscope to examine the scalp, can be valuable in differentiating fungal infections, including tinea capitis, from other conditions [5]. Furthermore, the use of Wood's lamp can help identify the presence of Microsporum canis infection, as the affected hairs will emit brilliant green fluorescence [6].
In adults, tinea capitis with alopecia should also be considered in the differential diagnosis, particularly if there is a history of hair loss [7].
Overall, the differential diagnosis for obsolete Microsporum canis tinea capitis requires a thorough evaluation of the patient's symptoms and a consideration of various conditions that may mimic the presentation of this fungal infection.
References: [1] Not applicable [2] Context 2 [3] Not applicable [4] Context 4 [5] Context 5 [6] Context 6 [7] Context 7 [8] Not applicable [9] Context 9
Additional Differential Diagnoses
- obsolete Microsporum audouinii tinea capitis
- obsolete Microsporum fulvum tinea capitis
- Lymphadenopathy
- Eczema (atopic dermatitis)
- Tinea capitis with alopecia in adults
- psoriasis
- obsolete tinea
- seborrheic dermatitis
Additional Information
- rdf-schema#domain
- https://w3id.org/def/predibionto#has_symptom_164
- owl#annotatedSource
- t327613
- oboInOwl#hasOBONamespace
- disease_ontology
- oboInOwl#id
- DOID:0050099
- core#notation
- DOID:0050099
- IAO_0000115
- An ectothrix infectious disease that results_in zoophilic fungal infection located_in hair, located_in skin, and located_in nail, has_material_basis_in Microsporum canis.
- rdf-schema#label
- obsolete Microsporum canis tinea capitis
- owl#deprecated
- true
- relatedICD
- http://example.org/icd10/T32.20
- 22-rdf-syntax-ns#type
- http://www.w3.org/2002/07/owl#Class
Medical Disclaimer: The information provided on this website is for general informational and educational purposes only.
It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with questions about your medical condition.