1/21. 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. ( info) |
2/21. 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'. ( info) |
3/21. 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. ( info) |
4/21. 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. ( info) |
5/21. 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. ( info) |
| We conducted a critical review of hypopigmented mycosis fungoides in historical perspective with emphasis on criteria clinical and histopathologic for diagnosis of that lymphoma as they are set forth in every article ever written about it. Toward that end, we undertook analysis of each article in the medical literature that mentioned hypopigmentation in mycosis fungoides (34 in toto). Each was scrutinized regarding content, photographs of lesions clinical pictured, and photomicrographs. On the basis of all the information in the 34 publications available to us, we made a determination about which patients had mycosis fungoides without doubt, which surely did not, and which about whom no judgment could be made by us because too little data requisite for such a decision was provided, especially in terms of photographs of lesions clinical and of photomicrographs. To date, 106 patients with "hypopigmented mycosis fungoides" have been reported on. Features clinical and findings histopathologic in 23 of those 106 patients were sufficient to permit us to determine, with a high degree of confidence, whether or not a particular patient truly had mycosis fungoides. In our judgment, 19 patients did have mycosis fungoides, whereas at least four patients did not. In regard to the other 83 patients, the information provided by the authors simply was not sufficient to allow us to come to a decision that we could justify. ( info) |
| 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. ( info) |
8/21. Confluent and reticulated papillomatosis associated with tinea versicolor in three siblings. We describe three teenage siblings with confluent and reticulated papillomatosis, all presenting during a 6-month period. Two of the three patients had confirmed tinea versicolor, with positive potassium hydroxide scrapings, in association with this entity. This is the largest series of siblings with confluent and reticulated papillomatosis, and the only report describing family members having both confluent and reticulated papillomatosis and tinea versicolor. This report lends further evidence to the hypothesis that confluent and reticulated papillomatosis may be etiologically linked to tinea versicolor, and also suggests a genetic predisposition for it. ( info) |
9/21. 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. ( info) |
10/21. 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. ( info) |