Tinea capitis due to Microsporum canis in infants

Three cases of scalp involvement by M. canis in infants are briefly reported. The first was a 2-month-old female with a few erythematous spots on the scalp, the second an 8-month-old male with lesions resembling seborrhoeic dermatitis and the third an 11-month-old male having areas of folliculitis of a kerion type. The father of the second case was found to have a tinea barbae infection due to the same fungus. Stray kittens were the most probable source of infection in all these cases.     

Tinea capitis by Microsporon gypseum

Summary Scalp involvement byM. gypseum was found in 22 children (15 boys and 7 girls), ranging from 1 till 12 years of age, most cases coming from urban areas. Kerion-like manifestation was observed in 9 cases, the rest presenting the superficial form of tinea capitis infection. The main type of hair invasion was ecto-endothrix, but endothrix type was also observed in 4 cases with favus-like aspect. The parasitised hair exhibited no fluorescence. The soil was proved to be the source of contamination in 40 % of the cases, where a trauma had favoured the transmission of the causative agent.     

鸡禽小孢子菌致泛发性体癣1例

1临床资料患者男性,24岁,因“会阴部褐色斑片1年,臀、背、面部褐色斑片6个月”于2005年4月就诊。患者1年前在股内侧出现淡红色斑片,上覆少量鳞屑,伴瘙痒。皮损不断向周围蔓延至会阴部,颜色渐由红转暗。半年前臀部、上背部出现2处同样斑片,并在面部出现对称的淡褐色斑片。红色斑     

Outbreak ofTinea capitis caused by Microsporum ferrugineum in Thailand

There was an outbreak ofTinea capitis at the Pak-kred Home for Mentally and Physically Handicapped Babies, Bangkok, Thailand in 1993. One hundred and thirty-eight cases were diagnosed as tinea capitis based on clinical signs and positive laboratory investigations. The results of Wood's light examination, KOH preparation and fungal culture were positive in 89.9, 75.9 and 27.4% respectively. The non-inflammatory form had a higher rate of positive KOH and culture than in the inflammatory form.Microsporum ferrugineum was the major pathogen (66.7%) and most of its infections (80.4%) caused a non-inflammatory type of tinea capitis. Griseofulvin, in a dosage of 10–15 mg/kg/day and selenium sulfide shampoos, yielded an 84.8% cure rate within 14.9 weeks. No recurrence or obvious adverse reactions were observed.     

Datos sobre Tinea capitis en Venezuela

El Dr.Borelli es Professor Asociado de la Fac. de Med., U.C.V., en las Cátedras de Dermatología (Dr.Carlos, J. Alarcón) y en la de Microbiología (Dr.Leopoldo Briceño I.). La Dra.Coretti es Primer Adjunto al Servicio de Medicina III, Hospital de Niños J. M. de los Ríos (Dr.Pedro J. Alvarez).Trabajo presentado en ocasión de las Primeras Jornadas Pediátricas, Caracas 18–24 Febrero 1962.     

Tinea capitis an endemic disease in Madras

A study ofTinea capitis in Outpatient Clinic, Skin Department, Government General Hospital, Madras during a three year period from November, 1973 to October, 1976, has shown a gradual increase in incidence of 3.56%, 5.09 % and 6.25 % respectively. Findings suggest thatTinea capitis is endemic in South India. Male children were more commonly affected than female children and the age groups chiefly affected were between 5 and 10 years. A considerable number of adults were also affected. The disease showed no correlation to environmental temperature, humidity and rainfall but was correlated to all types of mycoses and total incidence of mycoses.Among 357 isolates,Trichophyton violaceum was the commonest in 264 (73.94%) andT. tonsurans was the next common in 47 (13.16%). The other agents wereT. rubrum in 30 (8.4%),T. mentagrophytes in 11 (3.08%) andT. simii in 5 (1.4%). Noninflammatory lesions were more common than inflammatory lesions and both were produced byT. violaceum andT. tonsurans, suggesting strain differences in pathogenesis. Treatment with oral griseofulvin was satisfactory in all but had to be discontinued in 4 patients due to side effects.     

Tinea capitis in an adult. Case report

A tinea capitis and tinea faciei case in an elderly female patient with diabetes mellitus type 2 is presented. Her dermatological illness began on her face and later disseminated to her scalp. She received multiple medications which aggravated her condition. The diagnosis was established by means of direct examination and the isolation of Trichophyton tonsurans in culture. Treatment with 200 mg daily dose of itraconazol for two months resulted in clinical and mycological cure.     

Microsporum canis Infection in Three Familial Cases with Tinea Capitis and Tinea Corporis

We report a familial infection caused by Microsporum canis. The first two patients were a 30-year-old female and her son, a 5-year-old boy, who came in contact with a pet dog at a farm house. The boy then suffered from hair loss for 3 months. There were circular and patchy alopecia with diffuse scaling on his scalp. Meanwhile, his mother also developed patchy erythema and scaling on her face. Several weeks later, the boy’s sister, a 4-year-old girl, was noted to have inconspicuous scaly plaques in the center of her scalp. The development of tinea capitis in the two children and tinea corporis in their mother were diagnosed based on the positive KOH examination. Morphologic characteristics and sequencing of the internal transcribed spacers 1 and 2, amplified from primary culture isolates, confirmed that their infections were caused by the zoophilic M. canis. Repetitive sequence-based molecular typing using the DiversiLab system secreted enzymatic activity analysis, and antifungal susceptibility indicated that these isolates might share the same source. The boy and girl were cured by the treatment with oral itraconazole and topical naftifine–ketoconazole cream after washing the hair with 2 % ketoconazole shampoo, and their mother was successfully treated by terbinafine orally in combination with topical application of naftifine–ketoconazole cream.     

Tinea caused by Microsporum canis in children under 30 days of age

Six cases of ringworm due to Microsporum canis are reported in infants no more than 30 days old. The infections came from cats. The patients responded to therapy with griseofulvin and tolnaftate, miconazole or iodine.     

Tinea capitis in adults caused by Trichophyton violaceum. One case report

Nowadays, tinea capitis is not the most frequent clinical presentation of dermatophytoses. Classically, Sabouraud defined this condition as common in childhood and rare in adults. Nevertheless, it is occasionally observed in adults, most frequently in women over 50 years-old. Trichophyton violaceum is one of the species isolated. We report this case for its rarity and to advise the clinician that one should consider a possible fungal infection in adults showing desquamating plaques in the scalp.     

石膏样小孢子菌致婴儿额部体癣1例

报道1例由石膏样小孢子菌引起的婴儿额部体癣。患者男性,出生半月,左额部红斑丘疹水疱7 d。经真菌学检查确诊为石膏样小孢子菌导致的体癣。给予硝酸舍他康唑软膏外用,1周后皮损完全愈合。     

Tinea capitis in the adult: Two case studies

Ascites fluid from hybridoma cell lines producing monoclonal antibodies to an exoantigen of Microsporum canis was assayed for its precipitating properties. Three types of monoclonal antibodies were used for serological analysis of heterologous mycelial cultures. Based on specific antigenic determinants, the fungal strains showed different immunodiffusion reactivity within the species. The monoclonal antibodies also proved to be effective reagents for serotyping heterogeneous species. They may also have potential applications in epidemiology.