Prevalence of skin diseases among pediatric patients in Turkey.

The pediatric population is composed of persons under 16 years of age, and few studies are available on the dermatological diseases of this group. In the present study, data on a total of 6300 pediatric patients admitted between the years 2004-2006 were analyzed. Hospital-based patient registry records were used for data collection. The data were analyzed according to age, sex and time of admittance. A female preponderance (53%) was observed, and adolescents (12-16 years old) constituted the largest group within the patient population (47.6%). A total of 125 dermatoses were recorded. Acne vulgaris was the most prevalent dermatosis (12.4%), followed by atopic dermatitis (11.8%), contact dermatitis (11.3%), warts (9.5%), seborrheic dermatitis (4.3%) and impetigo (4.1%). Atopic dermatitis was the most frequently seen dermatosis in both infants and preschool-age children, whereas contact dermatitis was more prevalent in school-age children, and acne vulgaris was more prevalent in the adolescent group. The frequencies of some diseases showed seasonal variations. Acne vulgaris, atopic dermatitis, contact dermatitis, psoriasis, xerosis and alopecia areata were more common in winter. In contrast, insect bites, vitiligo, dyshidrotic eczema, impetigo and tinea corporis were more common in summer. Studies of the pediatric population, which constitutes the cornerstone of the community, can play an important role in determining the policies of protective medicine and public health. New studies will help us to better understand the frequency of dermatological diseases in the pediatric population according to age, gender and season, and take precautions with regard to these conditions.

Plasma homocysteine level is elevated in patients on isotretinoin therapy for cystic acne: a prospective controlled study.

PURPOSE: Isotretinoin (Iso) has marked side effects. Homocysteine (Hcy) metabolizes in the liver, requiring folate and vitamin B12. Elevated blood levels of Hcy have been linked to an increased risk of premature coronary artery disease (CAD). In this study, we evaluated Hcy levels, vitamin B12, and folate in patients on Iso treatment for cystic acne (CA). METHODS: Seventy-four patients with CA were included to the study group. Blood levels of Hcy, vitamin B12, and folate were assessed before and after 45 days of Iso therapy. The control group consisting of 80 individuals were tested once. RESULTS: Hcy levels were statistically significantly increased in patients on Iso treatment. Vitamins were unaltered, while lipids and liver enzymes increased statistically significantly. CONCLUSION: Hcy levels are elevated in patients on Iso treatment for CA. It may be due to either the inhibition of cystathionine-beta-synthase, an enzyme required in the metabolism of Hcy, by the drug and/or the liver dysfunction. Daily supplementation with vitamin B12 and folate, which are the cofactors of the enzymatic reactions involved in Hcy metabolism, can lower plasma levels of Hcy, so it is recommended to take these vitamins in case of deficiency along with Iso to prevent premature occlusive vascular disease.

Chronic bullous disease of childhood in a patient with acute lymphoblastic leukemia: possible induction by a drug.

Linear IgA disease is characterized by the presence of linear IgA deposits in the basement membrane zone of the skin, and circulating basement membrane zone antibodies are detected in 80% of cases. The disease occurs in both adults and children, and is designated adult linear IgA disease in the former and chronic bullous disease of childhood (CBDC) in the latter. We describe a 5-year-old boy with acute lymphoblastic leukemia in remission, in whom CBDC developed after treatment with trimethoprim/sulfamethoxazole (cotrimoxazole). To our knowledge, this is the first reported case of possible drug-induced CBDC.

Seborrhoeic dermatitis-like tinea faciei in an infant.

The patient we present herein is a 6-month-old infant who had erythema and scaling on the central part of the face for 4 months. Both the abundant scaling and the localisation, but also the low age of this infant led to suspect seborrhoeic dermatitis. Direct microscopic examination of scales showed septate hyphae and the cultural examination was also positive for dermatophyte. The found species was Trichophyton mentagrophytes. We describe this patient to highlight the importance of considering tinea faciei in the differential diagnosis of all facial eruptions and the value of mycological examination.

Serum lipoprotein (a) levels and Behçet's disease: is there an association?

BACKGROUND: Behçet's disease (BD) is a multisystemic inflammatory disorder found in individuals with a particular genetic background. Hemostatic studies in BD support an imbalance towards a prothrombotic state at different levels. Lipoprotein (a) (Lp(a)) has atherogenic and thrombogenic properties. It is mostly under genetic regulation. We investigated the possible relationship between Lp(a) and BD. METHODS: Forty patients diagnosed with BD and 40 healthy controls were enrolled. The clinical characteristics of the patients were recorded. Serum total cholesterol, high-density lipoprotein (HDL), very-low-density lipoprotein (VLDL), low-density lipoprotein (LDL), apolipoprotein A1, apolipoprotein B, and Lp(a) levels of the two groups were assessed and compared statistically. RESULTS: All patients (100%) had oral aphthous ulcers. Thirty (75%) had genital ulceration, 37 (92.5%) had either erythema nodosum or papulopustular lesions, and 10 (25%) had eye involvement. Twelve (30%) had a positive pathergy test. Four (10%) had vascular involvement. The Lp(a) level of the patient population was 19.6+/-18.8 mg/dL. This level was higher than that of the controls, but not statistically significant. The Lp(a) levels of the four patients with vascular complications were within normal limits. CONCLUSIONS: Lp(a) is of interest, as it is a genetically determined parameter that was found to be high in BD patients in our study group. The levels were independent of thrombotic complications, perhaps suggesting a different role for this lipoprotein in the etiopathogenesis of BD. Further studies with a larger number of patients are essential to discover the exact role of Lp(a) in BD.

Dermatomyositis with a pityriasis rubra pilaris-like eruption: an uncommon cutaneous manifestation in dermatomyositis.

A pityriasis rubra pilaris-like eruption has been described in patients with dermatomyositis. We describe an 11-year-old girl with dermatomyositis who had additional clinical findings of pityriasis rubra pilaris. Over a year, she developed muscle weakness, increasing fatigue, and a markedly elevated creatinine kinase level in addition to her cutaneous eruption and was seen in our clinic for these complaints. A year earlier, when a generalized, scaly erythematous eruption had appeared, she had been diagnosed as pityriasis rubra pilaris clinically and histopathologically. Dermatologic examination found scaling erythematous plaques involving the trunk and upper and lower extremities. Islands of unaffected skin were intermingled with erythematous plaques that were characteristic of pityriasis rubra pilaris. A skin biopsy specimen showed the findings of dermatomyositis and that diagnosis was made. The laboratory findings, electromyographic pattern, and muscle biopsy were also consistent with dermatomyositis. Her presentation is interesting, as she had been diagnosed as pityriasis rubra pilaris both clinically and histopathologically 1 year earlier and, although the cutaneous lesions had not changed, a diagnosis of dermatomyositis was made a year later.

Serum interleukin-8 as a serologic marker of activity in Behçet's disease.

BACKGROUND: Immune dysregulation has been shown to be one of the major aspects of the yet unknown pathogenesis of Behçet's disease. Interleukin-8 (IL-8), a major chemokine with pivotal effects concerning leukocytes and endothelial cells, has been found to be elevated in patients with Behçet's disease. AIM: To evaluate the significance of elevated levels of IL-8 with respect to the activity of Behçet's disease. METHODS: Sixty-seven consecutive patients with Behçet's disease (37 males, 30 females; 32.5 +/- 9.3 years) were enrolled in our study. The number of active clinical manifestations at the time of serum sampling was recorded. The degree of association between disease activity and IL-8, C-reactive protein, and erythrocyte sedimentation rate was assessed. RESULTS: Serum levels of IL-8 increased as the number of clinically involved organs increased (P < 0.05). C-reactive protein and the erythrocyte sedimentation rate showed no correlation with disease activity. CONCLUSIONS: Our study confirms that the IL-8 level is a more sensitive marker of disease activity than the erythrocyte sedimentation rate and C-reactive protein. It may be assumed that IL-8 plays an important role in the pathophysiology of Behçet's disease.