BACKGROUND Seasonal variation has been demonstrated in many diseases, including certain skin diseases. OBJECTIVE To determine whether there is seasonal variation in dermatologic office visits in the USA. METHODS Data on dermatologic office visits were obtained from representative visits to outpatient physicians in the USA from the National Ambulatory Medical Care Survey from 1990 to 1998. O...

BACKGROUND Scarring is a major source of morbidity in patients with burns. Burn scars are difficult to treat and are among the worst scars seen in clinical medicine. Fractional laser resurfacing is a promising treatment option because of its unique wound healing response and depth of penetration. OBJECTIVE To evaluate the efficacy of nonablative fractional resurfacing as a therapeutic option ...

THE PHYSICAL APPEARANCE of aged skin derives from a combination of intrinsic and extrinsic factors. Intrinsic changes are largely genetically determined and include the effects of gravity (sagging), expression lines, and atrophy of the dermis and subcutaneous tissue. Extrinsic aging is related to environmental influences with sunlight being the most important, followed by smokingandchemicalexpo...

introduction autologous plasma-rich platelet (prp) is a human platelet concentrated product which is in low volume of plasma. using prp in rejuvenation and resolution of some cosmetic problems has been already popular in many countries and also in iran. as no study performed in this field in iran and regarding the high prevalence of using prp in society with no validate references in the case o...

BACKGROUND Dermatomycoses caused by non-dermatophyte filamentous fungi are rare infections, except for onychomycosis, whose prevalence has increased over the past few years. Among these etiologic agents, we highlight Scytalidium dimidiatum and S. hyalinum, emergent fungi that cause mycoses that affect the nails and skin. OBJECTIVE To investigate the characteristics of onychomycosis and other ...

Squamous cell carcinoma is a malignant skin tumor that is rarely located in the nails. Its presentation, can sometimes be confused with an inflammatory process as onychomycosis or psoriatic onychopathy or other tumors as viral warts. We report the case of a 73-year-old woman with a locally invasive squamous cell carcinoma reaching the bone, simulating a chronic paronychia.

IMPORTANCE Fractionated, ultrapulsed carbon dioxide (CO2) laser therapy is a powerful tool for the treatment of scars. Common adverse effects of this therapeutic modality have been previously documented. We describe 2 unreported adverse effects of ultrapulsed CO2 laser treatment of mature scars in a patient previously treated with silver-impregnated dressings. OBSERVATIONS A teenage survivor ...

BACKGROUND Auxiliary power sources (LED and laser) are used in in-office teeth bleaching techniques to accelerate the redox reaction of the whitening gel to increase ease of use, to improve comfort and safety, and to decrease the procedure time. OBJECTIVE The aim this study is to evaluate the efficiency of the teeth whitening procedures performed with hydrogen peroxide and carbamide peroxide,...

Limited mouth opening (LMO) is a frequent complication of systemic sclerosis (SS). Its management is complex and there are limited treatment options. We report four patients with SS and severe LMO [interincisal distance (IID) <30 mm] treated with pulsed carbon dioxide (CO2) laser. Pulsed CO2 laser treatment of the white lips was performed after all patients had signed a written informed consent...

Abstract Tynskya eocaena is an early Eocene bird with a raptor-like skull and semi-zygodactyl feet, whose description based on skeleton from the North American Green River Formation. In present study, three-dimensionally preserved bones of new species , T. waltonensis are reported London Clay Walton-on-the-Naze (Essex, UK). The fossils belong to single individual provide insights into skeletal ...