Low prevalence of twisted hair in anorexia nervosa.

In a series of 30 patients affected by severe anorexia nervosa (AN) we examined hair samples to detect the prevalence of acquired pili torti (APT). True APT were not detected but in two cases (6.6%) twisted hair was observed. The first case was a 24-year-old woman with secondary amenorrhoea for 9 years, whose body mass index (BMI) was 12.2 kg/m2. She also had severe skin xerosis and hypertrichosis. The second case was a 24-year-old woman with secondary amenorrhoea for 1 year, whose BMI was 11.3 kg/m2. She also had severe skin and lip xerosis, severe effluvium, cystic acne, acrocyanosis, perimylolysis (severe erosion of the dentition) and scars due to cigarette burns on her forearms. Reviewing the literature we noticed that the largest series of pili torti--congenital and acquired--were published by authors from countries such as Israel and Egypt. We therefore hypothesize that, under the same conditions, a genetic factor may predispose to this hair shaft defect.

HBV-related cutaneous periarteritis nodosa in a patient 16 years after renal transplantation: efficacy of lamivudine.

Cutaneous periarteritis nodosa (PAN) is a clinical feature characterized by chronic, benign course; its pathogenesis is unknown. In patients submitted to renal transplantation cutaneous PAN is a rare complication. We report a case of cutaneous PAN associated with the reappearance of hepatitis B antigen 16 years after kidney transplantation. A 44-year-old man underwent successful renal transplantation in June 1980. In December 1996 he presented multiple painful erythematous subcutaneous nodules on both legs. Skin lesion biopsy showed the presence of cutaneous PAN. Six months later laboratory data demonstrated the presence of HbsAg. HBeAg, HBcAb and detectable HBV-DNA serum by polymerase-chain-reaction (PCR) assay. Anti-HBs and anti-HBe proved negative. In July 1998 the laboratory tests showed an important increase of HBV-DNA (5.1 billion by Branched DNA), and so lamivudine (100 mg/day) was introduced. HBV-DNA became undetectable by PCR after 3 months of therapy. Seven months later a new skin biopsy was performed. The typical signs of PAN were no longer evident. As HBV infecion was demonstrated six months after the clinical appearance of the PAN, in a patient who was believed to be immune to the virus, it is possible that, in the early stages, the hepatitis B antigen title was methodologically indeterminable, but sufficient to form circulating immune complexes responsible for vasculitis primer. Lamivudine therapy resulted efficacious in favouring the regression of cutaneous PAN, but its long-term efficacy requires further evaluation as regards potential selection of drug resistant hepatitis B virus (HBV) mutants during treatment.

Skin signs in anorexia nervosa.

BACKGROUND: Eating disorders are becoming an epidemic in Europe, particularly among young women, but European studies concerning this topic are few. In eating disorders, significant medical complications occur in all of the primary human organ systems, including the skin. OBJECTIVE: The purpose of this study was to improve the knowledge of skin signs in anorexia nervosa (AN) and verify whether cutaneous differences exist between the restrictive type and the bulimic type. METHODS: A noncontrolled clinical study was performed in 24 consecutive patients with the restrictive and the bulimic types of AN in order to verify whether the cutaneous signs are different in the two types. The dermatological examination included the entire skin, oral cavity, hair and nails, with attention to skin pathologies prior to the development of AN. RESULTS: In all the patients, the most frequent skin manifestations were xerosis (58.3%), hair effluvium (50%), nail changes (45.8%), cheilitis (41.6%), acne (41.6%), gingivitis (33.3%), acrocyanosis (29%), diffuse hypertrichosis (25%), carotenoderma (20.8%), generalized pruritus (16.6%), hyperpigmentation (12.5%), striae distensae (12.5%), factitial dermatitis, seborrheic dermatitis (8.3%), poor wound healing, melasma and Russell's sign (4.1%). In the patients with the bulimic type of AN, hair effluvium, acne, gingivitis, nail changes and generalized pruritus were more frequent than in the patients with the restrictive type. Russell's sign and seborrheic dermatitis were exclusively detected in the bulimic type. Hyperpigmentation, striae distensae, factitial dermatitis, poor wound healing and melasma were exclusively observed in the restrictive type. Cheilitis, diffuse hypertrichosis and carotenoderma were more represented in the restrictive type. Two patients with restrictive type of AN were followed up for a period of 3 years. In both, xerosis, cheilitis, acrocyanosis, hyperpigmentation and acne improved in relation to the increase in BMI. Hair effluvium and diffuse hypertrichosis appeared not to be linked to this parameter. CONCLUSION: Skin changes are prevalent among patients with AN. Some changes seem to depend on the type of AN or to be linked to the BMI.

Prevalence of superficial dermatomycoses in 73 renal transplant recipients.

BACKGROUND: Because of chronic immunosuppressive therapy, the skin of renal transplant recipients (RTR) is considered more liable to fungal infections. AIM: The aim of the study was to analyze the prevalence of superficial dermatomycoses in a chronically immunosuppressed group of RTR who live in northern Italy and to verify the eventual relationship between the onset of mycoses, the immunosuppressive regimen and the interval of time elapsed after the transplantation. METHODS: 73 RTR were submitted to a complete dermatological examination for fungal infection. Skin scrapings were taken from the upper back, from the 4th toe web of all patients and from any suspicious lesion. RESULTS: 31 patients (42.5%) were affected by dermatomycosis. Pityriasis versicolor (PV) was present in 20 RTR (27.4%), fungal infection of the 4th toe web in 10 patients (13.7%) and onychomycosis in 9 RTR (12.3%). Trichophyton mentagrophytes was the most common dermatophyte. The prevalence of dermatomycoses was higher in the group of patients treated with azathioprine-cyclosporine-steroids and in those who had received their renal transplant in the previous 1-5 years. CONCLUSIONS: PV was the most frequent dermatomycosis and showed a higher prevalence than in the normal population. The prevalence of fungal infection of the 4th toe web and onychomycosis was similar to that found in the immunocompetent population, but the length of interval after transplantation seemed to increase the probability of their occurrence and of mixed or simultaneous fungal infections in the same patient.

Kaposi's sarcoma in renal transplant recipients: pathogenetic relation between the reduced density of Langerhans cells and cyclosporin-A therapy.

Patients treated with immunosuppressive drugs can develop cancers. The authors present two cases of Kaposi's sarcoma in kidney transplant patients who had been treated with azathioprine, steroids and cyclosporin-A; during this treatment the Langerhans cells decreased and Kaposi's sarcoma appeared. Discontinuation or reduction of the dosage of cyclosporin-A led to complete regression of the illness, and the Langerhans cells reappeared. We suggest that cyclosporin-A damages the immunological function of the epidermal Langerhans cells, and that this is the primary factor in the development of Kaposi's sarcoma.

Benign nodular calcification and calciphylaxis in a haemodialysed patient.

Several types of soft tissue calcification can be detected from radiographic evaluation of patients with end-stage renal failure. The factors that predispose to such calcification include an increase in CaxP product in serum, the degree of secondary hyperparathyroidism, the level of blood magnesium, the degree of alkalosis, and the presence of local tissue injury. Three major varieties include calcification of medium-sized arteries, periarticular or tumoral calcification and visceral calcification. Calciphylaxis is a phenomenon consisting of acute ischemic necrosis in presence of calcification of dermohypodermic arterioles. It occurs mostly in chronic renal failure patients with secondary or tertiary hyperparathyroidism with a persistently elevated calcium-phosphorus product. There are few options in treating calciphylaxis and the outcome is generally poor. The authors report the case of a haemodialised patient with benign nodular calcification and calciphylaxis. The coexistence of both entities in the same patient has never been described.

Tacalcitol in psoriasis: a video-microscopy study.

Video-microscopy is a video-imaging system which permits direct visualization of the skin surface and capillaries, by using a microscope attached to a camera, a video-recorder and a printer. This technique provides information on the morphology of capillaries in vivo and has been used both for research into normal skin microcirculation and as a clinical method to detect capillary changes in psoriasis and other skin diseases. The aim of this study was to evaluate the morphology of capillaries in psoriatic plaques before and after treatment with tacalcitol, a new topical vitamin D3 analogue. Clinical evaluation was made after 3 and 6 weeks of therapy. After 3 weeks a reduction in erythema and scaling was noted; and areas in which capillaries were less tortuous became evident. After 6 weeks, capillaries were less dilated and tortuous in the whole plaque and had lost the large and tortuous appearance of active psoriasis.