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PubMed1994

Acral Darier's disease: report of a case complicated by Kaposi's varicelliform eruption.

We report a case of acral Darier's disease in a 16-year-old Korean boy that was complicated by Kaposi's varicelliform eruption. It is uncommon in Darier's disease for dyskeratotic papules to be limited to acral areas. In our patient, Kaposi's varicelliform eruption occurred on the face where there were no preexisting lesions of Darier's disease.

Adolescent↗
PubMed1995

Facial, pedal, and other regional dermatoses.

This article discusses disorders of the head and face, including feline acne, solar dermatoses, pruritus of the head and neck, and nodular or ulcerative dermatoses of the head. Disorders of the pinna, otitis externa, and nasal diseases are highlighted. In addition, a discussion of pododermatitis and diseases of the claws and ungual fold is presented. Miscellaneous regional dermatoses include midline ulcerative dermatitis, stud tail, and vaccine-induced lesions.

Animals↗
PubMed1985

Laminitis and interdigital dermatitis and heel horn erosion. A European perspective.

Laminitis is one of the most important claw disorders in dairy herds. Nutrition, calving, burdening of the lateral claw of the rear feet, and hereditary susceptibility are all contributing factors. Interdigital dermatitis in cattle may be a result of infection by Bacteroides nodosus and Fusobacterium necrophorum. If this infection becomes chronic, heel horn erosion is its consequence.

Animal Nutritional Physiological Phenomena↗
PubMed1987

Skin and nail changes in the arthritic foot.

The arthritic process is unlikely to be confined to the foot; similarly the cutaneous lesions associated with the arthritic foot are often widespread. Careful examination of the skin and nails, particularly the finger nails, may be helpful in the differential diagnosis when the patient presents with a painful foot joint. Conversely, certain cutaneous lesions may alert the physician to the possibility of joint disorders presenting at some later date. In this chapter, it is not possible to mention every skin lesion associated with an arthropathy. Some skin lesions are specific but many are non-specific and occur in several rheumatic diseases. The rheumatologist and dermatologist work in closest co-operation when managing patients with lupus erythematosus and psoriatic arthritis and it is for this reason there is particular emphasis on these two diseases. Patients with rheumatoid arthritis and gout usually come within the province of the rheumatologist, but there are often many characteristic dermatological features to these diseases. This chapter also includes some more esoteric diseases such as Familial Mediterranean fever, Behçet's syndrome, disseminated gonococcal infection and Lyme disease which may present a diagnostic problem to the general physician, rheumatologist or dermatologist.

Adult↗
PubMed2003

Contact sensitivity to calcium hypochlorite.

Eusol (an abbreviation for Edinburgh University solution), consisting of aqueous boric acid and calcium hypochlorite, is widely used in the management of open wounds left to heal by secondary intention (1).

Adolescent↗
PubMed2003

High prevalence of foot diseases in Europe: results of the Achilles Project.

OBJECTIVE: To provide an insight into the prevalence of foot disease in Europe, and to include an assessment of the prevalence of predisposing factors and their correlation with foot disease. DESIGN: Large population-based survey conducted in 16 European countries. SETTING: The project consisted of two parts (study I and study II), in which all patients presenting to general practitioners and dermatologists over a defined time period were invited to participate. Patients. In study I, 70,497 patients presenting to dermatologists or general practitioners were recruited, and in study II 19,588 patients presenting to dermatologists were recruited. MAIN OUTCOME MEASURE: The feet of all participants were examined for signs of foot disease. The assessors also recorded relevant details such as the age and sex of patients, and the presence of predisposing factors for foot disease. In addition, patients in study II were offered a free mycological examination of the toenails and skin on the feet. RESULTS: In study I, 57.0% of patients had at least one foot disease. In study II, 61.3% had at least one foot disease. The proportions of patients with fungal foot disease and non-fungal foot disease in study I were 34.9% and 38.4%, respectively, and in study II were 40.6% and 41.7%, respectively. Orthopedic conditions and metatarsal corns were the most frequently reported non-fungal foot diseases, and onychomycosis and tinea pedis were the most frequently observed fungal infections. CONCLUSIONS: This large-scale survey suggests that the prevalence of fungal and non-fungal foot disease is higher than previously estimated.

Adult↗
PubMed1998

Unusual clinical variants of cutaneous leishmaniasis in Pakistan.

Cutaneous leishmaniasis is endemic in the Baluchistan province of Pakistan and poses a great risk to non-immune visitors to the area. The wide spectrum of clinical variants of this common disease is at times a diagnostic challenge. A total of 1709 patients with cutaneous leishmaniasis were recorded over a 1-year period. In 37 (2%) patients the lesions were very unusual, and therefore worth reporting. These included acute paronychial, chancriform, annular, palmoplantar, zosteriform and erysipeloid forms. The zosteriform and erysipeloid forms have rarely been reported previously, but to the best of our knowledge, acute paronychial, chancriform, annular and palmoplantar lesions are being reported for the first time. The morphologically unusual lesions may be attributed to an altered host response or involvement of an atypical strain of parasite in these lesions.

Acute Disease↗
PubMed1997

The progression of nonsegmental vitiligo: clinical analysis of 318 patients.

BACKGROUND: Vitiligo is an acquired disorder with destruction of melanocytes and is characterized by cutaneous depigmentation with a progressive clinical course. We attempted to evaluate whether there was a relationship between the initial site and ultimate progression of nonsegmental vitiligo. METHODS: Three hundred and eighteen nonsegmental vitiligo patients were examined. Questionnaires regarding age, sex, duration of disease, family history, distribution of initial lesions, progression, and clinical type were recorded from personal interviews and case notes. RESULTS: Two hundred and eighty nine (90.9%) of the 318 patients showed progression of vitiligo at the time of examination. When the initial sites were the posterior trunk, hands, or feet, there was more progression of vitiligo to other body areas. The progression pattern was usually contiguous to the initial site. When the hands were the initial site, however, vitiligo most commonly progressed to the face. CONCLUSIONS: There may be a possible relationship between the initial site and ultimate progression of nonsegmental vitiligo. The progression pattern is usually contiguous to the initial site.

Back↗
PubMed1998

A questionnaire study of road pavers' and roofers' work-related skin symptoms and bitumen exposure.

BACKGROUND: Skin contact with the components in asphalt and bitumen can lead to irritant and allergic contact dermatitis, but few data are available in the dermatologic literature on the skin symptoms caused by work with bitumen. In addition, working methods have changed markedly during recent decades. METHODS: A questionnaire was delivered to 50 roofers and 101 road pavers. The questionnaire dealt with skin symptoms, symptoms caused by solvent products, the use of personal protection, smoking, eating habits, work conditions, changing and cleaning of overalls, etc. RESULTS: Forty-eight per cent of the road pavers and 58% of the roofers responded to the questionnaire. Relatively high percentages of work-induced skin irritation were reported by both the roofers (44%) and the road pavers (31%); 22% of the road pavers had dermatitis often or sometimes compared with 15% of the roofers. The hands, arms, face, and lower extremities were the most common sites affected. In addition to bitumen products, the road pavers considered amine adhesion-improving agents for paving and naphtha and solvents used in machine repairs, to be the main causes of their skin symptoms. The skin problems of the roofers were caused by man-made mineral fibers, cutback bitumen, and hot bitumen burns. CONCLUSIONS: Roofers endure greater exposure to chemicals than road pavers. Certain components, e.g. polycyclic aromatic hydrocarbons in bitumen, can be absorbed through the skin. Skin exposure should be lowered by keeping the tools, working clothes, shoes, and gloves clean. Overalls and gloves are recommended to be changed at least once a week. Water laundering is not sufficient in dissolving bitumen from overalls and underwear. Cleaning the skin with solvents or naphtha is not recommended, as they are skin irritants.

Alkanes↗
PubMed1983

Foot disorders in diabetics. Source of serious morbidity.

In the diabetic patient, the foot is particularly vulnerable to disorders resulting from vascular insufficiency, neuropathy, and infection. Without proper treatment, these disorders can lead to serious disability or amputation. Hyperglycemia, smoking, hypertension, and obesity contribute to the development of foot lesions. Early recognition of pedal lesions allows institution of measures (eg, special shoes, fitted inserts) that reduce risks of serious disorders. Patient education regarding foot care also plays an important role in prevention and management of disease. Aggressive treatment of infection and local care of lesions prevent extension of disease to adjacent areas. In cases of established infection or occlusive vascular disease amenable to bypass procedures, surgical intervention is frequently necessary. When amputation is required, rehabilitation professionals can assist the physician in patient education regarding personal care and readjustment.

Amputation, Surgical↗
PubMed1995

Benzidine stain for the histochemical detection of hemoglobin in splinter hemorrhage (subungual hematoma) and black heel.

Minor nail trauma may cause bluish discoloration of the nail, while tangential skin trauma on the heel can result in a so-called black heel. To rule out melanoma in such clinical situations, a biopsy is needed to reveal homogeneous eosinophilic masses deposited under the nail plate or within it (transepidermal elimination). Most dermatopathologists attempt to demonstrate the presence of hemoglobin in these eosinophilic masses with Prussian blue stain, which typically remains negative. In our experience, these traumatically induced blood deposits are always situated in avascular spaces, devoid of degrading phagocytes. Consequently, a histochemical stain for these deposits should be directed specifically toward hemoglobin, not hemosiderin. In the dermatopathologic literature, the various techniques to detect hemoglobin deposits in tissue sections are not well-known. We would like to emphasize benzidine stain, a highly selective and efficient method to demonstrate the presence of hemoglobin deposits in histologic sections. To date, benzidine stain has not been utilized to characterize splinter hemorrhage (subungual hematoma). Of concern, the use of benzidine in histopathology laboratories is restricted because this agent is a known carcinogen, while the non-mutagenic derivative, 3,3',5,5'-tetramethylbenzidine, does not stain histologic sections. Patent blue V, a completely different and less specific agent, stains hemoglobin an intense blue-green.

Benzidines↗
PubMed1996

Plantar ecchymosis sign: a clinical aid to diagnosis of occult Lisfranc tarsometatarsal injuries.

Diagnosis of subtle Lisfranc injuries can be difficult for the examining clinician. Radiographs do not always reveal the full extent of tarsometatarsal injuries. We describe a clinical sign found in significant Lisfranc injuries that consists of a mid-foot ecchymotic area on the plantar aspect. This implies the potential for significant injury to the plantar tarsometatarsal ligaments. We call this the plantar ecchymosis sign. Patients with this injury and sign should be aggressively evaluated, with early consideration for stress radiographs and ORIF if indicated, as the prognosis of the undertreated Lisfranc injury is poor.

Adult↗
PubMed1991

Bazex syndrome (acrokeratosis paraneoplastica). An analytic review.

Bazex syndrome (acrokeratosis paraneoplastica) is characterized by a psoriasiform eruption that favors acral sites and has been associated with an underlying malignancy in all reported cases. Of the 93 patients in this series, 89 were male with a mean age of 60 +/- 8.5 years. Squamous cell carcinomas of the head and neck and squamous cell tumors of unknown primary with cervical lymph node metastases were the most commonly associated neoplasms, suggesting that the factor(s) responsible for the development of the syndrome are relatively specific for tumors of the upper aerodigestive tract. The cutaneous lesions were erythematous to violaceous in color and had associated scale; the most frequently observed sites of involvement were the ears, nose, hands, and feet, including the nails. In 63% of the cases, the cutaneous lesions preceded the initial symptoms or diagnosis of the tumor by an average of 11 months (range, 1-72) and, in general, the eruption was resistant to a variety of topical treatments. Occasionally, a reappearance of the papulosquamous lesions signaled the recurrence of the tumor (6 cases) or the appearance of skin lesions coincided with the development of metastatic disease (3 cases). In 91% (64/70) of the patients, the skin eruption either improved significantly following treatment of the underlying malignancy or did not improve in the setting of persistent tumor. However, even when all of the skin lesions cleared, the nail dystrophy often persisted. Fifteen of the patients developed vesicles, bullae, and crusts in addition to papulosquamous lesions. Possible explanations include the formation of an epidermal-dermal split via a bullous lichen planus-like mechanism, or the coexistence of two diseases; i.e., acrokeratosis paraneoplastica plus either porphyria cutanea tarda, bullous pemphigoid, or epidermolysis bullosa acquisita. One possible explanation for the development of the characteristic cutaneous eruption is an immune reaction, humoral or cellular, directed against a common antigen present on the tumor and the normal skin. Alternatively, tumor production of a keratinocyte growth factor such as TGF-alpha may be involved in the induction of the psoriasiform skin lesions.

Carcinoma, Squamous Cell↗