International journal of dermatology
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Toxic epidermal necrolysis is a distinctive disorder that is readily identified clinically and histologically in advanced cases. Early on, however, toxic epidermal necrolysis may be difficult to identify. Some consider fixed drug eruption a limited form of toxic epidermal necrolysis. ⋯ Diffuse immunoreactant deposition in the mid-epidermis should suggest a diagnosis of epidermal necrolysis either from toxic epidermal necrolysis or fixed drug eruption. Additional cases will need to be assessed to document the usefulness of this pattern for prospective diagnosis.
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Visceral leishmaniasis (VL) is endemic in several areas in the Sudan. The disease is associated with depressed cellular immunity. Tinea versicolor is a normal commensal of the skin which can become pathogenic particularly in patients with depressed cell-mediated immunity. Patients with VL have a high prevalence of tinea versicolor. ⋯ Depressed cell-mediated immunity that is a feature of VL is the probable underlying cause for fungal infection. Tinea infection during the course of VL is to be distinguished from lesions of post-kala-azar dermal leishmaniasis.
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Comparative Study
The Fine Page: angiotensin converting enzyme angioedema.
Angioedema/urticaria secondary to ACE inhibitor drugs is an important clinical entity, which dermatologists should be aware of as they are so widely used and their use will undoubtedly increase. In addition to the obvious importance to the patient of promptly recognizing ACE inhibitor angioedema, uncovering the etiology of angioedema/urticaria is a rare and satisfying experience that can "make your day."
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The antimicrobial activity of gentian violet and brilliant green was tested against various strains of potential skin pathogens, by means of agar diffusion assay. The activity of both compounds was affected by pH. ⋯ An aqueous solution of gentian violet 0.5% turned out to be an adequate topical anti-infective drug. The preparation is particularly suitable for primary health care in tropical developing countries, because it is cheap, chemically and physically stable, and easy to prepare.