1/12. Pityriasis versicolor with a unique clinical appearance.We experienced an atypical case of pityriasis versicolor with a unique clinical appearance and undescribed mycological features. Although malassezia sp. was cultured from the keratotic material, the fungal elements observed in the material were not readily identified as malassezia. The diagnosis was established with the aid of immunohistochemical and ultrastructural studies with the aetiological agent being identified as M. globosa.- - - - - - - - - - ranking = 1keywords = pityriasis (Clic here for more details about this article) |
2/12. Case report. Erythrasmoid pityriasis versicolor.A 50-year-old Caucasian man with pityriasis versicolor that was localized almost exclusively in the inguinal folds and was characterized by lesions clinically superimposable on those of erythrasma is described. Due to these clinical characteristics, it is proposed that this variety of pityriasis versicolor is defined as 'erythrasmoid'.- - - - - - - - - - ranking = 6keywords = pityriasis (Clic here for more details about this article) |
3/12. Pityriasis versicolor rubra.We report six typical cases with pityriasis versicolor (PV) rubra, with a background of collagen diseases in five cases and none in one case. Two cases of systemic lupus erythematosus (SLE) and one case of systemic scleroderma (SSc) had both PV rubra and nigra on the trunk. diagnosis of superficial infections of PV was made by microscopic examination of skin scrapings following KOH, and many small whitish colonies were obtained in Sabouraud's slant agar medium culture containing cycloheximide with olive oil in all cases. malassezia sympodialis was isolated from the scales of two different lesions at a 6 week-interval in a same person (a 32 year-old male without SLE nor SSc) by the method of Makimura et al. [5], although the other five cases were not examined for the isolation. Histopathological features of the lesion on the dorsum of the trunk showed no epidermal hyperplasia without elongation of rete ridges and no inflammatory cell infiltration in the dermis, however there was only dilatation of small blood vessels in the dermis, which was reconfirmed capillaroscopically. In the horny layers, several yeastlike and fine filamentous structures were seen which were positive with PAS and Grocott stains. Both clinical and histological features led us to speculate PV rubra. All the patients were treated with anti-fungal ointment, and the lesions diminished in less than 2 weeks. No recurrence has been seen in any of the cases. This PV rubra may be independent from PV nigra, although Horiuchi [2] suggested the earlier lesion occurs in advance of PV alba or nigra.- - - - - - - - - - ranking = 1keywords = pityriasis (Clic here for more details about this article) |
4/12. Isolated scalp involvement with pityriasis versicolor alba (pityrias versicolor albus capitis) in a patient from a dry, temperate region.Pityriasis versicolor (tinea versicolor) is a common superficial fungal infection of the skin involving the hyphal (filamentous) form of Pityrosporum orbiculare. Clinical cutaneous infection is common in humid, tropical climates, but declines to less than 5 percent in temperate climates. Isolated face or scalp involvement is rare. We present a boy living in a temperate region who had sudden onset of scalp and hairline involvement with tinea versicolor.- - - - - - - - - - ranking = 4keywords = pityriasis (Clic here for more details about this article) |
5/12. Coexistence of pityriasis versicolor and erythrasma.We describe a 53-year-old woman with pityriasis versicolor together with erythrasma that was localized in the axillary and genitocrural region. The coexistence of these infections is rare and we propose the use of methylene blue stain for the diagnosis of both diseases.- - - - - - - - - - ranking = 5keywords = pityriasis (Clic here for more details about this article) |
6/12. tinea versicolor mimicking pityriasis rubra pilaris.tinea versicolor is a common noninvasive cutaneous fungal disease. We recount a case of tinea versicolor that mimicked type I (classic adult) pityriasis rubra pilaris. A 54-year-old white man reported a 20-year history of a recurrent pruritic eruption that had marginally improved with use of selenium sulfide shampoo and treatment with oral antihistamines. Results of a skin examination revealed erythematous plaques; islands of spared skin; and follicular erythematous keratotic papules on the trunk, shoulders, and upper arms. A lesion was scraped to obtain skin scales for potassium hydroxide staining. Examination of the stained samples revealed the characteristic "spaghetti and meatballs," confirming the diagnosis.- - - - - - - - - - ranking = 5keywords = pityriasis (Clic here for more details about this article) |
7/12. A case of pityriasis versicolor atrophicans.A case of pityriasis versicolor atrophicans caused by malassezia globosa is reported in a 49-year-old woman. diagnosis was based on direct microscopic examination and culture. Differential diagnosis was performed with respect to other skin diseases manifesting with cutaneous atrophy.- - - - - - - - - - ranking = 5keywords = pityriasis (Clic here for more details about this article) |
8/12. Sparing of the upper axillary area in pityriasis versicolor.Increased temperature and sweating are considered factors predisposing to pityriasis versicolor. In this case report, sparing of the vaults of the axillae which are naturally occluded and sweaty areas, in a patient with widespread lesions of pityriasis versicolor is discussed. It is the second observation in this regard and further contributions are invited.- - - - - - - - - - ranking = 6keywords = pityriasis (Clic here for more details about this article) |
9/12. Hyperkeratotic head and neck malassezia dermatosis.BACKGROUND: Pityriasis versicolor (tinea versicolor) is a common skin disorder due to malassezia usually affecting adolescents and young adults, more frequently in the tropics. Facial involvement, isolated or not, is not frequent in white adults. OBJECTIVE: Here, we report a possible atypical hyperkeratotic form of dermatosis of the face, in two young immunocompetent Caucasian patients, particularly recalcitrant to therapy. RESULTS: Skin scrapings grew yeasts belonging to the genus malassezia, including both M. globosa and M. sympodialis. This unusual variant needs long-term therapy with systemic and topical imidazoles together with facial cleansing. CONCLUSION: We propose the name hyperkeratotic head and neck malassezia dermatosis for this distinctive clinical entity. This variant of pityriasis versicolor should be considered in the differential diagnosis of seborrheic dermatitis and dermatitis neglecta.- - - - - - - - - - ranking = 1keywords = pityriasis (Clic here for more details about this article) |
10/12. Rapid response of transient acantholytic dermatosis to selenium sulfide treatment for pityriasis versicolor.The observation of a 51-year-old male patient with transient acantholytic dermatosis (TAD) is briefly reported. The discrete eruption, composed of erythematous escoriated papules and papulovesicles, moderately itching, was located on the back and chest, more permanent during the summer season. The biopsy revealed suprabasal acantholysis and Darier-like elements. Lesions of pityriasis versicolor, confirmed by microscopic examination and fluorescence in wood's light, were intermingled with TAD in the same patient. A topical treatment with selenium sulfide brought TAD lesions to the disappearance in 1 week. Comments are made in relation with the possibility of malassezia furfur to induce acantholytic phenomena.- - - - - - - - - - ranking = 5keywords = pityriasis (Clic here for more details about this article) |
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