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[Skin changes in HIV infections].

The spectrum of dermatologic findings related to human immunodeficiency virus includes a variety of cutaneous and mucocutaneous disorders. The most frequent diagnoses are oral candidiasis, seborrheic dermatitis, pyodermas and Kaposi's sarcoma. Distinctive skin lesions occur at various stages of HIV infection. Especially herpes zoster, seborrheic dermatitis and oral candidiasis may act as indicators, and their recognition is of particular importance for the early diagnosis of HIV infection and for the prevention of further opportunistic infections. In addition, some dermatologic findings as mollusca contagiosa and Kaposi's sarcoma occur mostly as late manifestations and may constitute a cutaneous correlate of advanced cellular immune deficiency.

AIDS-Related Opportunistic Infections↗

[Prevalence of cutaneous lesions in Freixo de Espada à Cinta].

Incidence or prevalence studies on cutaneous lesions in general populations are not available. The community observed by the authors (Freixo de Espada à Cinta, North-Eastern Portugal) is relatively closed. A pre-tested questionnaire for socio-demographic and clinical information was used and a physical observation was conducted in January and February 1994 by the Dermatology Team of Santo António General Hospital, Oporto. The analysis was supported by independent tests (Pearson and Fisher chi 2, Student-t, Mann-Whitney and Kruskall-Wallis). The Spearman correlation coefficient was also used. The results indicated that 51.9% of 1000 subjects analysed were in phototype III. Concerning specific pathologies, the following percentages were observed: melanocytic nevi 81.2; hemangiomas 26.5; androgenetic alopecia 20.5; deshydrotic eczema 12.7; seborrheic keratosis 11; solar keratosis 9.6; acne vulgaris 9.5; seborrheic dermatitis 6.9; superficial mycosis 6.4; other dermatitis 5.5; vascular spiders 4.4; vulgar psoriasis 1.9; vulgar warts 1.5; pediculosis and scabiosis 1.2.; herpes simplex 0.9; impetigo 0.7; tumours (neoplasias) 0.7; dysplastic nevi 0.6; urticaria 0.3. More than nine nevi were counted in 50% of the subjects observed. A difference was observed (p < 0.05) concerning the presence of nevi, mycosis, hemangiomas, non-specific dermatitis, vascular spider and solar keratosis according to sex. The females had more nevi in number than males (Mann-Whitney, p = 0.03). According to age there was a difference concerning the presence of nevi, superficial mycosis, deshydrotic eczema, seborrheic dermatitis, acne, psoriasis, tumours, hemangiomas, non-specific dermatitis, vascular spider, solar keratosis (with linear augmentation by age) and seborrheic keratosis. Nevi increased with ageing (Rs = 0.10 p < 0.001) and a greater number were observed in age groups 0-9 and 60 or more years. Acne was observed in 9.4% of the females and 9.7% of the males, 46.2% in the 15-29 year-old age group. This study indicated that the population had a mean of nine nevi. Psoriasis was similar to that mentioned in other studies: about 1% in the United States of America. Atopic dermatitis (5.5%) is below the values for the northern population (> = 15%), but above that indicated for the English and American population. Nevertheless, the values of the present study were higher than those in the latter populations, when children until seven years old were considered. The Freixo de Espada à Cinta population above 60 years had solar keratosis in 30.6%, a value three times higher than the previous decade (10.9%); reference values were not found. Contrary to the literature, an association was not established between phototype and solar keratosis. Cutaneous tumours were observed in 0.7% of the cases.

Adolescent↗

Cutaneous manifestations of familial amyloidotic polyneuropathy.

Familial amyloidotic polyneuropathy is an autosomal dominant amyloidosis, characterized by the systemic deposition of amyloid with a particular involvement of the peripheral nerves. The disease generally manifests as a severe sensory, motor and autonomic neuropathy. Cardiomyopathy, nephropathy, vitreous opacities and carpal tunnel syndrome may occur in a variable association with the neuropathy. Trophic dermatological lesions are frequent in the more advanced stages of the disease. We examined the skin of 142 patients. The cutaneous manifestations more frequently observed were: xerosis (81.6%), seborrheic dermatitis (21.8%), traumatic and burn lesions (19.7%), acne (18.3%), neurotrophic ulcers (14%) and onychomycosis (10.5%). Among the hepatic transplanted patients (31%), seborrheic dermatitis and acne were the most frequent diagnoses.

Adult↗

Dermatopathologic findings in patients infected with HIV.

Several inflammatory, infectious, and neoplastic conditions in HIV-infected patients are distinctive or require a biopsy for diagnosis. Some differ subtly from similar conditions seen in noninfected patients. The exanthem of acute HIV infection cannot be diagnosed specifically on biopsy as its histologic appearance is similar to that of other viral exanthemata. A condition that closely resembles seborrheic dermatitis occurs in HIV-infected patients. Plasma cells, necrotic keratinocytes, and leukocytoclasis may be present, in contrast to findings in sporadic seborrheic dermatitis. Psoriasis and Reiter's disease also occur in HIV-infected patients and can be specifically diagnosed as such. The category "psoriasiform dermatitis of AIDS" thus seems to include several distinct entities and not to be a single disease. Bacillary angiomatosis is a treatable infection caused by a rickettsialike organism similar to Rochalimaea quintana, the agent of trench fever. Cutaneous lesions are characterized by lobules of capillaries with protuberant endothelial cells, neutrophils and their debris, and purplish-staining clumps of organisms, which can be demonstrated with silver stains or electron microscopy. An unusual reaction to atypical mycobacterial infection, in which spindle-shaped macrophages are seen, resembles histoid leprosy. Viral skin diseases that may challenge the dermatopathologist include unusual verrucous reactions to chronic varicella-zoster infection and flat warts caused by the human papillomavirus associated with epidermodysplasia verruciformis. Keratinocytes with foamy basophilic cytoplasm may be a marker for one of these viruses, human papillomavirus type 5. Neoplastic complications of HIV disease include Kaposi's sarcoma and mycosis fungoides. The earliest lesions of the patch stage of Kaposi's sarcoma show a slightly increased number of cells with small ovoid nuclei around preexistent structures, accompanied, in some cases, by sparse infiltrates of lymphocytes and plasma cells. Staining with antisera to type IV collagen may highlight the vascular spaces in these early lesions. Later lesions that resemble hemangiomas may also prove challenging and require level sections to demonstrate the presence of spindle cells and eosinophilic globules. Although HIV is cytotoxic to helper T cells, neoplastic proliferations of them may be seen in HIV-infected patients. These cases of mycosis fungoides do not seem to differ from sporadically occurring ones and occur in patients who seem not to be infected by HTLV-I.

HIV Infections↗

Eyelid dermatitis: experience in 203 cases.

Allergic contact dermatitis has been considered the most common of the many dermatologic conditions found with eyelid dermatitis. This is a retrospective study of 203 patients who presented with persistent or recurrent eyelid dermatitis with or without dermatitis elsewhere. Almost all underwent patch testing and, when indicated, radioallergosorbent test, skin prick and intradermal tests, and in many cases, usage tests as part of the workup. Relevant allergic contact dermatitis was found in 151 of 203 patients (74.%): 46 (23.%) had protein contact dermatitis, but only 7% had protein contact dermatitis without concurrent allergic contact dermatitis. Less than 1% had irritant dermatitis alone. Twenty-three patients had atopic eczema, of whom 16 also had allergic contact dermatitis, protein contact dermatitis, or both. Other conditions included seborrheic dermatitis (n = 11), psoriasis (n = 7), dry eyes (n = 9), and dermatomyositis or overlapping connective tissue disease (n = 7). Important sources of contact sensitivity include cosmetics, metals, topical medications including corticosteroids, eye medications, dust mites, animal dander, and artificial nails; only 5 cases were caused by nail lacquer. Eyelid dermatitis is a multifaceted clinical problem, but in this group of patients, allergic contact dermatitis was a common cause, even among those with atopic eczema.

Cosmetics↗

The prevalence and pattern of skin diseases in relation to CD4 counts among HIV-infected police officers in Dar es Salaam.

Among HIV-infected individuals, skin diseases cause significant morbidity and are frequently the initial indication of immunosuppression. From an on-going cohort study to determine prevalence and incidence of HIV infection among police officers (POs) and their suitability for HIV vaccine trials, a sub-study was carried out to determine the prevalence and pattern of skin diseases among HIV-infected POs and relate this to their immunodeficiency status. Consenting HIV-infected POs and their age and sex-matched HIV-negative officers were assessed for presence and type of skin diseases at their workplaces. A questionnaire was used for data collection. Immunodeficiency was measured by plasma CD4+ lymphocytes using flow cytometry. Between November 1998 and 31 December 2000, 716 POs were assessed. Overall HIV-1 prevalence was 17.7% (127/716). One hundred and ninety-one POs (26.7%) had at least one skin diagnosis. HIV-infected POs had significantly higher (41.7%) prevalence of skin diseases than HIV-uninfected POs (26.4%), P = 0.002. Fungal infections were common in both HIV-infected and uninfected POs. Among the HIV infected, other common diseases were: herpes zoster (11.8%); pruritic papular eruption (PPE) (7.1%); seborrheic dermatitis (5.5%); and Kaposi's sarcoma (KS) (1.6%). KS and PPE were associated with severe immunodeficiency, with mean absolute (percentage) CD4+ counts of 75.5 cells/microL (4.0%) and 71.7 cells/microL (4.8%), respectively. The values for herpes zoster and seborrheic dermatitis were 271.1 cells/micronL (12.4%) and 206.3 cells/microL (11.3%), respectively. Skin diseases were common among HIV-infected POs. PPE and KS are markers of severe immunodeficiency due to HIV. PPE, herpes zoster and KS strongly suggest underlying HIV-related immunodeficiency and patients with these conditions should be counselled and tested for HIV.

AIDS-Related Opportunistic Infections↗

Work with video display terminals among office employees. V. Dermatologic factors.

According to some reports, mainly from Norway, work with a video display terminal (VDT) has been suspected to cause skin rashes. In conjunction with an epidemiologic study of some 550 office employees, 74 persons, who complained of skin symptoms, were examined by occupational dermatologists. The objective was to see whether the findings from earlier reports could be confirmed, whether any type of rash could be suspected to depend on VDT work, and whether positive findings might be explained by means of physical data. Many different diagnoses were made, but no case demonstrated the clinical picture described among VDT operators from Norway. Subjects with seborrheic dermatitis, acne, and rosacea were overrepresented in the exposed group. Whether this occurrence was due to physical factors, psychological factors, or pure chance is still unclear. This study and observations from our clinic imply that a relationship might exist between VDT work and aggravation of seborrheic dermatitis, acne, and rosacea and probably poikiloderma of Civatte.

Adult↗

Interaction of azoles with rifampin, phenytoin, and carbamazepine: in vitro and clinical observations.

Twelve patients receiving therapy with an azole agent (ketoconazole, itraconazole, and/or fluconazole) for systemic mycoses experienced drug interactions with rifampin, phenytoin, and/or carbamazepine resulting in substantial decreases in azole concentrations in serum. All four patients receiving azoles and concurrent phenytoin and/or carbamazepine failed to respond to treatment or suffered a relapse of their fungal infection. Four of five patients with cryptococcosis who received itraconazole and rifampin responded despite decreases in their serum itraconazole concentrations; synergy between itraconazole and rifampin was documented by in vitro analysis of inhibition and of killing of Cryptococcus neoformans isolates from all patients receiving this combination. In contrast, two patients with coccidioidomycosis failed to respond to itraconazole/rifampin. Moreover, two patients with cryptococcosis suffered a relapse or persistence of seborrheic dermatitis while receiving itraconazole/rifampin. The latter combination showed synergy in vitro in the inhibition of the mycelial phase of Coccidioides immitis and, to a lesser extent, of the pathogenic spherule phase of this fungus; synergy in the killing of C. immitis was not noted, nor was synergy seen against Malassezia furfur, the purported etiologic agent of seborrheic dermatitis. These findings illustrate several drug interactions that may affect clinical outcome and that must be considered in the management of antifungal therapy.

Adult↗

Oral terbinafine in the treatment of multi-site seborrhoic dermatitis: a multicenter, double-blind placebo-controlled study.

Seborrheic dermatitis (SD) is a common disorder for which no satisfactory curative treatment exists. Preliminary studies suggest that terbinafine may be effective. The efficacy and tolerability of oral terbinafine was evaluated in multi-site SD in a randomized, double-blind, placebo-controlled study. For this purpose, 174 adult patients with SD lesions involving >or=3 skin areas, each causing >or=2 moderate/severe symptoms according to a pre-defined clinical score, were classified according to the localization of lesions: patients with lesions predominantly involving non-exposed skin areas, such as scalp and hairline and sternum and/or interscapular area (Population A, n=83) or patients with lesions in exposed sites, mainly the face (Population B, n=91). Patients were randomized to oral terbinafine (250 mg/day ) (n=86) or matching placebo (n=88), each given for 6 weeks. Primary efficacy variable was the response rate, defined as >or=50% decrease in baseline total clinical score without rescue medication intake after 6 weeks of treatment. The main secondary assessments were: subject's global assessment of relief and proportion of patients satisfied with treatment. Recurrence rate was assessed in responder patients during a 4-week treatment-free period. In Population A the response rate after 6 weeks of treatment was significantly higher with terbinafine (70% vs 45.4%; p=0.03) and so was the proportion of patients who reported relief (75% vs 41%; p=0.007) and who were satisfied (66% vs 40%; p=0.02). No significant differences were recorded in Population B. Adverse events occurred in 11.5% of terbinafine patients and 8% of placebo patients. One patient discontinued treatment with terbinafine because of adverse events (mild tachycardia and insomnia). In conclusion, our results show that terbinafine is significantly more effective than placebo in reducing the severity of SD lesions in nonexposed sites. Clinical trials comparing terbinafine to standard treatment regimens in different types of patients with SD are warranted.

Administration, Oral↗

Atypical cases of Microsporum canis infection in the adult.

Eleven adult patients (7 males, 4 females) were found to be infected with Microsporum canis. There was involvement of the scalp in three patients: in one male and one female there were kerion-like lesions and in one male the lesions resembled seborrheic dermatitis. There were three cases of tinea barbae, males aged 28, 65 and 82 years, in the first resembling an infected single lesion of granuloma annulare, the second with a kerion-like lesion and the third with an abscess-like tumor. There were five patients with lesions in glabrous areas: one male with a lesion of the palm resembling erythema multiforme and one with an infection of the auricular lobe resembling a seborrheic dermatitis or otitis externa; of three females with tinea faciei one had a lesion simulating granuloma faciale, one simulating lymphocytic infiltration and one simulating discoid lupus erythematosus. A cat was the source of infection in three cases; in the remainder it could not be determined with certainty. It is of note that a continuous increase in infection with M. canis has been observed in Israel during the past five years.

Adult↗

Mucocutaneous manifestations of HIV infection: a retrospective analysis of 145 cases in a Chinese population in Malaysia.

BACKGROUND: Mucocutaneous lesions directly related to human immunodeficiency virus (HIV) infection usually present as initial manifestations of immune deficiency. The most common mucocutaneous lesions are Kaposi's sarcoma, histoplasmosis, oro-esophageal candidiasis, oral hairy leukoplakia, and, in Asia, Penicillium marneffei infection. Non-HIV-related skin lesions, such as psoriasis, seborrheic dermatitis, and nodular prurigo, may be the initial presentation among HIV infected patients attending outpatient clinics. METHODS: A retrospective analysis was performed on 145 HIV-positive Malaysians of Chinese descent from two centers at the University Hospital Kuala Lumpur (UHKL) and the General Hospital Kuala Lumpur (GHKL) from March 1997 to February 1998. Demographic data and clinical data were analyzed. RESULTS: The analysis showed that 104 out of 145 patients had mucocutaneous disorders (71.7%). In the study, there were 100 men (96.2%) and four women (3.8%). The majority of patients were in the age group 20-50 years. The patients who presented with mucocutaneous disease also had low CD4+ T-lymphocyte counts and most had acquired immunodeficiency syndrome (AIDS) defining illness. The number of cases with generalized hyperpigmentation was very high in the group (35.9%), followed by nodular prurigo (29.7%) and xerosis (27.6%). Seborrheic dermatitis was seen in 20.7% of cases, with psoriasis in 8.3%. The most common infections were oral candidiasis (35.9%), tinea corporis and onychomycosis (9.7%), and herpes infection (5.5%); however, mucocutaneous manifestations of Kaposi's sarcoma were rare. CONCLUSIONS: The results suggest that mucocutaneous findings are useful clinical predictors of HIV infection or signs of the presence of advanced HIV infection.

Adult↗

Topical application of ketoconazole stimulates hair growth in C3H/HeN mice.

Ketoconazole (KCZ) is an imidazole anti-fungal agent that is also effective in topical applications for treating seborrheic dermatitis and dandruff. Recently, topical use of 2% KCZ shampoo has been reported to have had a clinically therapeutic effect on androgenetic alopecia. The present study was conducted with the purpose of quantitatively examining the stimulatory effect of KCZ on hair growth in a mouse model. Coat hairs on the dorsal skin of seven week-old male C3H/HeN mice were gently clipped, and either 2% KCZ solution in 95% ethanol or a vehicle solution was topically applied once daily for three weeks. The clipped area was photographed, and the ratio of re-grown coat area was then calculated. The results demonstrated that 2% KCZ had a macroscopically significant stimulatory effect compared with the vehicle group (p<0.01, n=10). Repeated experiments showed similar effects, confirming the efficacy of KCZ as a hair growth stimulant. Although the therapeutic mechanism of topical KCZ for hair growth is unclear, our results suggest that topical applications of the substance are useful for treating seborrheic dermatitis accompanied by hair regression or male pattern hair loss.

Administration, Cutaneous↗

Tinea versicolor and Pityrosporum orbiculare: mycological investigations, experimental infections and epidemiological surveys.

In patients with tinea versicolor, Pityrosporum orbiculare was cultured from tinea versicolor lesions in 100%, from normal-looking skin in 80%, and from apparently healed lesions in 69%. P. orbiculare was isolated from normal skin in 85% of patients with seborrheic dermatitis and in 90% of volunteers. The best substrate for isolation of P. orbiculare was a peptone-glucose-yeast extract medium containing glycerol monostearate and Tween 80, overlaid with olive oil. Germ tubes were produced when P. orbiculare was incubated in an atmosphere containing air with 7% CO2. Cultures of P. orbiculare and P. ovale did not show any fluorescence in Wood's light. The in vitro activity of miconazole, clotrimazole, econazole, sodium omadine, and sodium thiosulphate against P. orbiculare was found to correlate to the good clinical effect of these drugs in tinea versicolor. In addition several substances used as solvents or in vehicles had an inhibitory activity against P. orbiculare in vitro. Inoculation with P. orbiculare under plastic occlusion on the glabrous follicle-rich inside of the rabbit ear resulted in a tinea versicolor-like lesion after I week in 3 of 4 animals. One week after inoculation with P. orbiculare under plastic occlusion, experimental infections similar to those found clinically in tinea versicolor were seen in 10 of 12 patients with a history of tinea versicolor and in 3 of 6 normal volunteers. It was not possible to produce experimental infections without occlusion. Spontaneous healing usually occurred. In a retrospective study of 232 patients and prospective survey of 48 patients regarding susceptibility factors in tinea versicolor a higher (10.4%) than expected (3.8%) connection to seborrheic dermatitis was found.

Adolescent↗

Cytochemical expression of epidermal peroxidase and cytochrome oxidase activities in pathological skin conditions of man.

The cytochemical expression of epidermal peroxidase and cytochrome oxidase activity was recently well documented in normal human skin. We report here its expression in basal and squamous cell carcinomas, actinic keratoses, psoriasis, allergic contact dermatitis, seborrheic keratoses, and autosomal dominant ichthyosis vulgaris. The two enzyme activities were evaluated using the diaminobenzidine method. If present, the two enzymes were always localized in the same organelles as in normal epidermis: endogenous peroxidase in the nuclear envelope and endoplasmic reticulum, and cytochrome oxidase in mitochondria. In basal and squamous carcinomas, actinic keratoses and psoriasis, the keratinocytes lost their peroxidase activity, but maintained their cytochrome oxidase activity. In seborrheic keratoses, allergic contact dermatitis and ichthyosis vulgaris, the cytochrome oxidase activity was greatly reduced or abolished in keratinocytes, Langerhans' cells, and melanocytes, whereas the peroxidase activity was present as in normal epidermis. These results indicate that the two peroxidatic enzymes studied are not interrelated and alternatively suppressed by different cellular dysfunctions.

3,3'-Diaminobenzidine↗

Positive lymphocyte transformation test in a patient with allergic contact dermatitis of the scalp after short-term use of topical minoxidil solution.

Topical 2,4-diamino-6-piperidinopyrimidine-3-oxide (minoxidil) solution has been widely used for the treatment of androgenetic alopecia for over 15 years now and the substance is currently approved for this indication in 2% and 5% formulation. Typical side effects of this topical treatment include irritative dermatitis going along with pruritus, erythema, scaling and dryness, which occur especially at the onset of the therapy. In some cases, allergic contact dermatitis or exacerbation of seborrheic dermatitis has been reported. While most of the patients with allergic contact dermatitis described in the literature showed a positive sensitization to the vehicle substance propylene glycol evaluated by patch testing, reactions to the active ingredient minoxidil are rare. Here, we report a case of allergic sensitization to minoxidil, which we evaluated and differentiated from an irritative reaction by a combination of patch testing and lymphocyte transformation test. The differentiation of allergic and irritative adverse effects and the identification of the causative allergen are of major relevance for the proceeding and adjustment of the therapy. Patients with sensitizations against propylene glycol are candidates for preparations with alternative solvents but can proceed treatment with minoxidil. In contrast, patients with allergies to the active ingredient itself are no longer candidates for treatment with minoxidil and should undergo alternative therapeutic options.

Administration, Topical↗

Survey of cutaneous lesions in Indian newborns.

A total of 900 consecutive newborns delivered at the Nehru Hospital, Chandigarh, India, over a period of 7 months were examined for presence of skin lesions within 48 hours of birth. Commonly observed skin lesions were Epstein pearls (88.7%), mongolian spots (62.2%), milia (34.9%), sebaceous hyperplasia (31.8%), salmon patches (28.4%), and erythema toxicum neonatorum (20.6%). These figures are comparable with earlier reports. Impetigo neonatorum occurred in 11.3% of infants, and was frequent in our hot and humid climate from May to August. Traumatic skin lesions were most often present in babies who had forceps deliveries. Three hundred ten (34%) babies were available for follow-up up to six weeks. Additional skin lesions observed were omphalitis (16 babies), oral thrush (9) and postinflammatory hypomelanosis (8). Three infants had atopic dermatitis, two each had seborrheic dermatitis, diaper dermatitis, pityriasis versicolor, and nevus achromicus. One each had vitiligo, ichthyosis vulgaris, urticaria, and strawberry hemangioma. These observations highlight the importance of repeat examination for the appearance of skin lesions during the neonatal period.

Female↗

Exfoliative dermatitis. A prospective study of 80 patients.

A prospective study in 80 exfoliative dermatitis patients over a period of 5 years establishes 41.9 years as its mean age at onset. The disease affected both males and females, with a preponderance of the former. The clinical features were identical, irrespective of the etiology. The onset of the disease was usually insidious except in staphylococcal scalled skin syndrome and drug-induced erythroderma, where it was abrupt and florid. Microcytic hypochromic anemia, elevated erythrocyte sedimentation rate, eosinophilia, low serum proteins and electrolytes were salient laboratory features. Histopathology was largely unrewarding; only in 12 patients, a good clinicohistologic correlation was present. Preexisting dermatoses, namely psoriasis, air-borne contact dermatitis, phytophotodermatitis, photosensitive and seborrheic dermatitis, and other dermatoses constituted the major etiology. Antituberculous drugs were responsible for a substantial proportion of drug-induced erythroderma. No lymphomas were found. This study outlines that some salient features of exfoliative dermatitis may show geographic variations.

Adult↗