To validate dermoscopy as a real-time noninvasive diagnostic imaging technique for actinic keratosis (AK).

Dermatomyofibroma represents a rare benign fibroblastic/ myofibroblastic cutaneous tumor that mostly occurs in young adult women. It has been seldom reported in pediatric patients. In this analysis, the clinical, histopathological and immunohistochemical findings of 12 dermatomyofibromas occurring in patients up to 16 years of age are compared with those reported in adults. Six patients were male and six were female. Nine lesions were located on the neck, two on the back and one involved the chest. The usual presentation was as an asymptomatic plaque composed of bland spindled cells arranged in dermal fascicles that were oriented parallel to the epidermis. Immunohistochemically, the lesional cells expressed calponin in 11 cases, smooth muscle actin in six and muscle-specific actin in three. In contrast to prior reports from adults, dermatomyofibromas in pediatric patients do not show a female predilection. In addition, they are mostly located on the neck (56%), while in adults the most frequent location is the shoulder (35%). Dermatomyofibromas seem to stabilize after an initial period of enlargement. Punch biopsy and clinical follow up could be an alternative approach to the surgical excision in some cases of dermatomyofibroma, particularly in instances in which surgery might inflict cosmetic defects.

A distinctive clinical entity of acute genital ulcers occurring in adolescents, with nonvenereal infectious etiology was described by Lipschütz in 1913. We describe four puberal virgin girls who developed fever and painful genital ulcers. The main causes infectious and noninfectious of ulceration were rejected. Although the etiology is unknown, recent cases related with Epstein-Barr virus acute infection have been reported.

Summary Background Capillary malformation–arteriovenous malformation (CM‐AVM) syndrome is a rare syndrome with characteristic skin lesions that are associated with fast‐flow vascular malformations (FFVMs) in one‐third of patients. Few case series have been described, and none in Spain. Aim To identify the prevalence of dermatological parameters, FFVMs and associated features in a large series of patients with CM‐AVM. Methods We conducted an observational study of patients with CM‐AVM syndrome diagnosed in 15 Spanish hospitals over 3 years. The main clinical, radiological, genetic findings and associated diseases were analysed. Results In total, 64 patients were assessed. In 26.5% of cases, the diagnosis was incidental. In 75% of patients, there was one significantly larger macule, which we termed the ‘herald patch’. FFVMs were detected in 34% of the patients, with 30% located on the skin, 7.8% in the brain and in 1.5% in the spine. There was a positive family history in 65% of the 64 patients. Genetic analysis was performed for RASA1 mutations in 57 patients, of whom 42 (73%) had a positive result. All 4 patients tested for EPHB4 mutations had a positive result. No tumour lesions were detected in the series, except for five infantile haemangiomas. Conclusions Our data on clinical lesions, associated FFVM, family history and genetics are similar to those previously published in the literature. An extensive data analysis failed to demonstrate any statistically significant association between the presence of an FFVM and any clinical, familial or genetic parameter that could predict its onset, although a link between the presence of a herald patch on the midline face and the presence of a brain FFVM was observed. We did not detect any genotype–phenotype correlation.

No abstract

This was a retrospective study with the largest series recorded in Spain and with one of the highest incidences. In addition, we report on variables not described in other studies.

We report a patient who presented with an intensely pruritic rash, with hyperpigmentation of the whole back and multiple hyperpigmented and hyperkeratotic papules over his forearms and lower extremities. Histologically, he showed deposits of amyloid that reacted positively with monoclonal antibodies against cytokeratins. The lesions were resistant to antihistamines and corticosteroids. Treatment with oral acitretin was started and great improvement of the lesion was noted; the patient became asymptomatic. We review the literature on the effect of retinoids in cutaneous amyloidosis.

No abstract