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At least 433 records · Page 24Linked to original sources
PubMed2005

Vinyl adhesive tape also effective for direct microscopy diagnosis of chromomycosis, lobomycosis, and paracoccidioidomycosis.

Among the existing techniques for direct microscopy diagnosis in mycology, vinyl adhesive tape (VAT) preparations have proved their usefulness for Malassezia spp., Candida spp., and dermatophyte superficial infections. The collection and identification of fungal agents can be performed easily by the VAT technique, as demonstrated in this work, for the setting of some deep-seated cutaneous mycoses, where infectious agents can be observed in the horny layer of the epidermis in transepidermal elimination events. Preliminary results obtained in a series of 19 cases (chromomycosis, 12; lobomycosis, 5; paracoccidioidomycosis, 2) yielded positive results in 17 (89.47%). Failures for proper microscopic diagnosis detection happened in just 2 cases, 1 for chromomycosis and 1 for paracoccidioidomycosis. These results, although encouraging, were obtained from a relatively small patient population sample. Thus, the authors recommend further tests using this direct microscopy technique in a larger number of patients to validate these preliminary results and to explore its sensitivity in cases of small lesions.

Adhesives↗
PubMed1983

Treatment of chromomycosis with ketoconazole and 5-fluorocytosine.

Chromomycosis is a disfiguring cutaneous mycosis that is often recalcitrant to therapy. We describe a case of chromomycosis of the lower extremities that is being successfully treated with ketoconazole and 5-fluorocytosine (5-FC) after treatment with ketoconazole alone had failed. In vitro studies showed that the drugs acted synergistically against the strain of Fonsecaea pedrosoi which was isolated from the patient's lesion.

Adult↗
PubMed1998

Spores and mycelia in cutaneous chromomycosis.

In 2 cases of cutaneous chromomycosis, potassium hydroxide preparations of lesional crust/scale easily revealed characteristic Medlar bodies. However, in both instances mycelia were also demonstrated. This contradicts the prevailing belief that concomitant spores and mycelia are found only in cerebral chromomycosis.

Biopsy↗
PubMed1992

Cell-matrix patterns in the cutaneous lesion of chromomycosis.

Chromomycosis is a chronic fungal infection characterized by dermal fibrosis with persisting fungi in situ, generally leading to a verrucous skin lesion. The absence of good clinical results under specific treatment suggests irreversibility of the fibrotic lesion. Frozen and paraffin-embedded skin biopsies of eleven patients with chromomycosis due to Phialophora pedrosoi were studied by immunohistochemistry and electron microscopy. Distinct cell-matrix patterns were found in different tissue localizations: neutrophilic abscesses with oedema and necrotic keratinocytes in the epidermis; dense connective matrix around inflammatory infiltrates, mainly composed of macrophages and giant cells, and organized granuloma in the dermis. Active fibroblasts and mast cells were constantly observed. The inability of fibrotic tissue to be remodelled seems correlated to the nature and the organization of the matrix components but, the factors triggering the initial fibrogenic events remain to be characterized.

Adult↗
PubMed2002

Subcutaneous pheohyphomycosis in India--a case report and review.

BACKGROUND: Pheohyphomycosis is a rare infection caused by dematiaceous fungi, affecting the skin and subcutis, paranasal sinuses, or central nervous system. METHODS: A case of subcutaneous pheohyphomycosis in the lumbar region is reported. The Indian literature on subcutaneous pheohyphomycosis is also reviewed. RESULTS: In India, 23 patients with subcutaneous pheohyphomycosis have been reported, distributed throughout the country in a belt from north to south, sparing the eastern and western regions. The age of the patients ranged from 3 to 60 years, with a male to female ratio of 1.3 : 1. A relatively early age of onset was observed. A history of prior injury was recalled by five patients. The lower extremities were involved in eight cases, upper extremities in five, gluteal region in two, lumbar area and submandibular area in one, face in two and disseminated disease was seen in four cases. Three of these cased died during follow up. Osteomyelitis was observed in two cases, hepatosplenomegaly in one, and lymph node involvement in two. Carcinomatous change developed in a long-standing lesion of 33 years. Thirteen species from seven genera of dematiaceous fungi were isolated. Phialophora dermatidis was the most common isolate. CONCLUSIONS: Indian patients with subcutaneous pheohyphomycosis are afflicted at an earlier age. Exophiala dermatidis seems to be associated with more fatalities. Treatment with newer azoles seems promising, and excision alone or combined with azoles is a good therapeutic modality.

Chromoblastomycosis↗
PubMed2003

Treatment of chromomycosis by cryosurgery with liquid nitrogen: 15 years' experience.

BACKGROUND: Chromomycosis is a chronic fungal infection of the skin and subcutaneous tissue caused by various dematiaceous fungi, the most common of which is Fonsecaea pedrosoi. The disease is difficult to treat. METHODS: Twenty-two chromomycosis patients treated by cryosurgery with liquid nitrogen as the sole or associated therapy were studied. Diagnosis was confirmed by direct examination of KOH cleared specimens, culture, and histology, according to a method previously described by Pimentel et al. (Pimentel ERA, Castro LGM, Cucé LC, Sampaio SAP. Treatment of chromomycosis by cryosurgery with liquid nitrogen. J Dermatol Surg Oncol 1989; 15: 72-77). Small lesions were frozen in a single session, whilst larger lesions were frozen in small parts. All patients received double freeze-thaw cycles. An author-created severity index, based on the extent of the diseased area, number of lesions, presence of complications (lymphedema, ulceration, and secondary infection) and unresponsiveness to previous treatments, was used to determine disease severity. RESULTS: Fonsecaea pedrosoi was isolated from all but one patient. Caucasian (50.0%) males (4.5 : 1.0) were most commonly affected. The average number of cryosurgery sessions per patient was 6.7, varying from one to 22 sessions. The duration of treatment lasted for up to 126 months. Nine patients (40.9%) were considered to be cured (clinically disease-free period of at least 3 years), eight (36.4%) were under observation (clinically disease-free but less than 3 years of follow-up), two (9.1%) were under treatment (still with active lesions), and three (13.6%) were classified as unsuccessful. The average cure period was 7.5 years, varying from 3 to 16 years. Five (55.6%) of the nine cured patients had been cured for periods exceeding 9 years. Six (66.7%) of the nine cured patients were classified as having mild, two (22.2%) severe, and one (11.1%) moderate disease. CONCLUSIONS: Cryosurgery with liquid nitrogen is an option in the treatment of chromomycosis.

Chromoblastomycosis↗
PubMed2002

Successful treatment of chromomycosis using carbon dioxide laser associated with topical heat applications.

A 59-year-old Japanese man presented with a slightly elevated, pruritic, erythematous plaque on his left buttock measuring 5 x 5 cm in diameter. The man had a history of chromomycosis, dating 6 years prior to the current consultation, for which he had been treated with oral terbinafine. Diagnosis of a recurrence of chromomycosis of the skin due to infection by Foncecaea pedrosoi was made after careful analysis of the clinical features, skin biopsy, KOH mounts, and fungal culture results. We administered topical heat therapy followed by treatment with CO2 laser to eradicate the unresponsive remnants of the lesion. The operative site re-epithelized within 10 weeks, and 1 year after the treatment there was no evidence of recurrence. For a recalcitrant case of chromomycosis, as in this case, the use of CO2 laser combined with topical heat therapy may be a new therapeutic modality.

Carbon Dioxide↗