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Each year in the United States over 80 million people participate in bat-and-ball sports, for example baseball and softball. Cricket, the world's second most popular sport, is enjoyed by hundreds of millions of participants in such countries as India, Pakistan, Australia, New Zealand, Bangladesh, South Africa, West Indies, Sri Lanka, United Kingdom, and Zimbabwe. Although any player can develop skin disease as a result of participation in these bat-and-ball sports, competitive team athletes are especially prone to skin problems related to infection, trauma, allergy, solar exposure, and other causes. These diseases can produce symptoms that hinder individual athletic performance and participation. In this review, we discuss the diagnosis and best-practice management of skin diseases that can develop as a result of participation in baseball, softball, and cricket.

Olympic athletes are vulnerable to traumatic, environmental and infectious skin manifestations. Although dermatological complaints are frequent among Olympians, there is a scarcity of literature that reviews sports-related dermatoses among Olympic athletes. A comprehensive review of PREMEDLINE and MEDLINE searches of all available literature through to January 2011 was conducted, focusing on sports-related dermatological presentations as well as the key words 'Olympic athletes' and 'skin diseases'. Common skin conditions can be harmful and even prohibitive for competition. Common aetiologies of dermatological conditions related to sports include: skin infections with dermatophytes such as tinea pedis and tinea corporis, bacteria such as pitted keratolysis, and folliculitis and viruses such as herpes gladiatorum. Frictional dermatoses occur commonly and include athlete's nodules, jogger's itch, frictional blisters, callosities and talon noir. Trauma can cause haematomas such as auricular haematomas. Due to long training hours in the sun, many endurance athletes experience high levels of UV radiation and a higher risk for both melanoma and non-melanoma skin cancer. Pre-existing dermatoses can also be aggravated with practice and competition; in particular, atopic eczema and physical urticarias. Infrequent dermatoses are susceptible to misdiagnosis, delay in treatment and needless biopsies. This review highlights the diagnosis and management of sports-related dermatoses by the following general categories of Olympic sport: endurance, resistance, team sport, and performing arts.

The third of this three-part series on water-related sports dermatoses discusses skin changes seen in athletes who participate in sporting activities on top of or nearby water. While also susceptible to several of the freshwater and saltwater dermatoses discussed in parts one and two of the series, these athletes may present with skin changes unique to their particular sports. This updated and comprehensive review details those near-water dermatologic conditions commonly seen in sailors, rowers, fishermen, surfers, windsurfers, rafters, and water skiers, and will serve as a guide for dermatologists, sports medicine physicians and other medical practitioners in recognition and treatment of these conditions., (© 2010 The International Society of Dermatology.)

The second part of this three-part series on water-related dermatoses will discuss dermatologic conditions seen in athletes exposed to saltwater. The vast majority of the following dermatoses result from contact with organisms that inhabit saltwater, including bacteria, cnidarians, and echinoderms. This review also will include other dermatoses affecting saltwater athletes and should serve as a guide for dermatologists, sports medicine physicians, and other medical practitioners in recognition and treatment of these dermatoses., (© 2010 The International Society of Dermatology.)

The first of this three-part series on water-related dermatoses involving the athlete will include sports occurring with the majority of time spent in the water. These sports include swimming, diving, scuba, snorkeling and water polo. Numerous authors have described dermatologic conditions commonly seen in swimmers. This series provides an updated and comprehensive review of these water dermatoses. In order to organize the vast number of skin conditions related to water exposure, we divided the skin conditions into groupings of infectious and organism-related dermatoses, irritant and allergic dermatoses and miscellaneous dermatoses. The vast majority of skin conditions involving the water athlete result from chemicals and microbes inhabiting each environment. When considering the effects of swimming on one's skin, it is also useful to differentiate between exposure to freshwater (lakes, ponds and swimming pools) and exposure to saltwater. This review will serve as a guide for dermatologists, sports medicine physicians and other medical practitioners in recognition and treatment of these conditions., (© 2010 The International Society of Dermatology.)

Background: Psychogenic excoriation describes patients who excoriate without apparent primary skin abnormality., Objective: This study compares the psychiatric profile of patients with psychogenic excoriation with a control group., Methods: Fifty consecutive patients with psychogenic excoriation were matched with 50 control patients and given a questionnaire related to psychiatric history., Results: Study and control groups differed significantly in relation to psychiatric comorbidity, use of psychotropic drugs, history of depression, and history of bipolar disorder. Psychogenic excoriation was not associated with personal history of other psychiatric disorders or family history of psychiatric comorbidity, except alcoholism., Limitations: Nonpsychiatrists may have made the psychiatric diagnoses., Conclusion: Psychogenic excoriation is significantly associated with psychiatric comorbidity, especially depression and bipolar disorder. Awareness by the patient of a link between the psychiatric disorder and the cutaneous condition may help patients in dealing with the distress caused by the unknown nature of the excoriating behavior.

As more individuals choose to maintain their fitness level year-round, they inevitably encounter skin problems. During these athletic pursuits, the skin must endure ongoing insult, serving as the interface between the athlete and environmental factors unique to the sport and season. Therefore, primary care physicians and dermatologists must understand how athletic activity and weather contribute to the development of dermatoses. By appropriately recognizing winter sport dermatoses, the practitioner can best provide tailored effective treatment that enables the patient to quickly return to the winter sport.

As the United States comes increasingly closer to being the heaviest nation on earth, many people are turning to exercise, especially running, to lose weight. Most runners, whether novice or professional, will have a skin disorder that may prompt them to seek medical attention. Although case reports and sports reviews have discussed, in a cursory fashion, the nature of these skin lesions, to our knowledge there has never been an extensive review of the literature that specifically addresses the skin diseases of runners. In this article, we present the epidemiology, origin, clinical characteristics, treatment, and prevention of skin diseases inherent to runners.

The most common injuries afflicting the athlete affect the skin. The list of sports-related dermatoses is vast and includes infections, inflammatory conditions, traumatic entities, environmental encounters, and neoplasms. It is critical that the sports physician recognises common and uncommon skin disorders of the athlete. Knowledge of the treatment and prevention of various sports-related dermatoses results in prompt and appropriate care of the athlete. Infections probably cause the most disruption to individual and team activities. Herpes gladiatorum, tinea corporis gladiatorum, impetigo, and furunculosis are sometimes found in epidemic proportions in athletes. Vigilant surveillance and early treatment help teams avoid these epidemics. Fortunately, several recent studies suggest that pharmacotherapeutic prevention may be effective for some of these sports-related infections. Inflammatory cutaneous conditions may be banal or potentially life threatening as in the case of exercise-induced anaphylaxis. Athletes who develop exercise-induced anaphylaxis may prevent outbreaks by avoiding food before exercise and extreme temperatures while they exercise. Almost all sports enthusiasts are at risk of developing traumatic entities such as nail dystrophies, calluses and blisters. Other more unusual traumatic skin conditions, such as talon noire, jogger's nipples and mogul's palm, occur in specific sports. Several techniques and special clothing exist to help prevent traumatic skin conditions in athletes. Almost all athletes, to some degree, interact with the environment. Winter sport athletes may develop frostbite and swimmers in both fresh and saltwater may develop swimmer's itch or seabather's eruption, respectively. Swimmers with fair skin and light hair may also present with unusual green hair that results from the deposition of copper within the hair. Finally, athletes are at risk of developing both benign and malignant neoplasms. Hockey players, surfers, boxers and football players can develop athlete's nodules. Outdoor sports enthusiasts are at greater risk of developing melanoma and non-melanoma skin cancer. Athletes spend a great deal of time outdoors, typically during peak hours of ultraviolet exposure. The frequent use of sunscreens and protective clothing will decrease the athlete's sun exposure. It is critical that the sports physician recognises common and uncommon skin disorders of the athlete. Knowledge of the treatment and prevention of various sports-related dermatoses results in prompt and appropriate care of the athlete.

Athletes face numerous hazards in their daily activities. An athlete''s skin, in particular, endures repeated exposure to trauma, heat, moisture, and numerous allergens and chemicals. These factors combine with other unique and less well-defined genetically predisposing factors in the athlete''s skin to cause both allergic contact dermatitis (ACD) and irritant contact dermatitis (ICD). As with other cases of contact dermatitis, these eruptions in athletes present as a spectrum of acute to subacute to chronic dermatitis. Recognizing the unique environmental irritants and allergens encountered by athletes is paramount to facilitate appropriate therapy and prevention. This review comprehensively examines the literature on contact dermatitis in athletes. The different types of contact dermatitis have been classified under sport-specific subheadings. Furthermore, within each subheading, both ACD and ICD types are discussed. [Copyright &y& Elsevier]

Athletes commonly encounter skin problems as a result of their exercise endeavours. Many of these dermatoses are related to skin infections. Bacteria, viruses, fungi, atypical mycobacteria, and parasites may all hinder athletes' performances. Regular surveillance by athletes and coaches assists in promptly identifying these skin infections. Prompt therapy helps to thwart team epidemics. Prevention is paramount and includes both pharmacological and non-pharmacological methods. This review article reviews in detail the epidemiology of skin infections, the clinical presentation of skin infections, the management of skin infections, and the prevention of skin infections. [ABSTRACT FROM AUTHOR]

Describes sports-related dermatoses, the most common ailments among athletes. General types of skin diseases related to athletic activity; Factors critical to make accurate clinical diagnosis of skin diseases among athletes; Cutaneous inflammatory diseases that affect the athletes.

Knuckle pads, first described by Garrod in 1893, 1 are benign, asymptomatic, well- circumscribed, smooth, firm, skin colored papules, nodules, or plaques. They most commonly occur on the dorsal aspect of the proximal interphalangeal joint of the finger, 2 but also may occur on the dorsal aspects of the foot over joints. 3–5 Knuckle pads may be inherited or acquired. 1 While some authors suggest that trauma is not a significant factor, 6 acquired knuckle pads have been associated with repetitive friction and trauma, 2,7 and may resemble athlete's nodules (also referred to as collagenomas). 1 Histologically, knuckle pads are characterized by hyperkeratosis, hypergranulosis, proliferation of fibroblasts and capillaries, and thickened and irregular collagen bundles. 1 Few cases of knuckle pads involving the lower extremities have been reported. 7 Knuckle pads of the feet have been described in association with inherited syndromes, such as acrokeratoelastoidosis Costa, 3 a syndrome of knuckle pads, leukonychia and deafness, 4 and a syndrome of knuckle pads, leukonychia, deafness and keratosis palmoplantaris. 5 We report a case that illustrates an unusual presentation of acquired knuckle pads of the feet secondary to repetitive friction from athletic gear. [ABSTRACT FROM AUTHOR]

The article presents a letter to the editor commenting on the article entitled "Uncovering Histologic Criteria With Prognostic Significance in Toxic Epidermal Necrolysis," published in the previous issue of the "Archives of Dermatology" journal.

Biology professor Leo Buss often warned us that association did not imply causation. While some experienced with basic statistics would recognize that these words are not necessarily linked, this tenet may not be entirely clear to some dermatologists. Apart from confusing this issue of causal and noncausal associations, medical researchers often wantonly use the word association. The liberal use of the word association must be curtailed. Clearly the word association should not be abandoned. It aptly describes an important relationship between two disease states.