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Cellulitis and related skin infections.

The location, appearance and clinical course of a skin infection can be used to make a reasonable assumption about its etiology. By carefully considering such factors as entry site and immunocompetence, the physician can make a rational decision about hospitalization and treatment. When appropriate, traditional antibiotics should be used initially, thereby avoiding the temptation to "overkill" the infection with newer, more expensive agents.

Anti-Bacterial Agents↗

[Keratosis lichenoides chronica].

We report on a case of keratosis lichenoides chronica. In our opinion, this very rare disease is an entity which might be classified as a primary inflammatory dermatosis.

Adult↗

Purpura annularis telangiectodes of Majocchi.

A case is presented of a man with a 3-year history of ulcers in the setting of pigmented, annular and purpuric lesions of the lower extremities. A skin biopsy suggested a diagnosis of purpura annularis telangiectodes of Majocchi. First described in 1896 by Majocchi [1], purpura annularis telangiectodes is an uncommon pigmented purpuric eruption, which is characterized by symmetrical, purpuric, telangiectatic, and atrophic patches with a predilection for the lower extremities and buttocks. Histopathology and immunopathogenesis of this disease are similar to the other subtypes of pigmented purpuric dermatoses.

Adult↗

Solar urticaria. A report of 25 cases and difficulties in phototesting.

BACKGROUND: Solar urticaria is a rare photosensitive disease, and its differential diagnosis with respect to polymorphous light eruption is sometimes difficult. We report our experience with 25 cases of solar urticaria and discuss the pitfalls in phototesting such patients. OBSERVATION: The most important locations in this patient series are the V of the neck and the arms, which are similar to those of polymorphous light eruption. In all of the patients, however, the lesions appeared within 30 minutes of sun exposure or phototesting and disappeared within 24 hours. Notably, 12 (48%) of the patients had a history of atopy. Phototesting helps confirm the diagnosis, but, in some patients, this was difficult. CONCLUSIONS: A negative phototest result from a single light source does not necessarily exclude a diagnosis of solar urticaria. In patients in whom phototesting elicits negative reactions, other light sources should be used, and, if the phototest result is still negative, a provocative test with natural sunlight should be done. Histamine1-receptor antihistamines are a useful first-line therapy, although more severely affected persons may require prophylactic courses of phototherapy or photochemotherapy. The main problem is maintenance treatment.

Adolescent↗

Erythema ab igne--a neglected entity?

The author describes two patients with erythema ab igne, a condition which used to be common before the introduction of central heating. Sporadic examples of the condition are still seen and treated.

Adult↗

Scleromyxoedema-like changes in four renal dialysis patients.

We describe four renal dialysis patients from our hospital who, over a 6-month period, developed erythematous, thickened, indurated dermal plaques. The plaques were limited to the limbs and in three patients there were associated flexion contractures. The clinical features most resembled scleromyxoedema. All patients had previously received at least one renal transplant. Histopathology of the plaques showed features of scleromyxoedema in two patients, whereas the other two showed a different picture, more suggestive of a morphoea-like process. There are important differences between our patients and classical scleromyxoedema. All four patients had normal immunoglobulins and no paraprotein was detected. Almost all cases of classical scleromyxoedema are associated with an IgGlambda paraproteinaemia. We have not yet identified an underlying cause for this cluster of cases in our hospital. It is possible that the skin changes seen may have been precipitated by an environmental agent, such as in 'toxic oil syndrome' and vinyl chloride-induced scleroderma. We discuss the differences between our patients and those with scleromyxoedema, localized or generalized morphoea and environmentally induced scleroderma. We feel that our patients show a constellation of features similar, but not identical, to scleromyxoedema. There has been only one previous report of similar patients. We believe this to be a new and distinct phenomenon.

Adult↗

Q-switched Alexandrite laser in the treatment of pigmented macules in Laugier-Hunziker syndrome.

We report clearance of pigmented macules on the lips of two subjects with Laugier-Hunziker syndrome using the Q-switched Alexandrite laser. Recurrence of two macules was noticed in one case 6 months after treatment and the lesions were successfully retreated. This report evaluates the efficacy and side-effect profile of the Q-switched Alexandrite laser in the treatment of lentigines in this syndrome.

Beryllium↗

A case of Rothmann-Makai panniculitis successfully treated with tetracycline.

Rothmann-Makai syndrome (lipogranulomatosis subcutanea) is a rare variant of Weber-Christian disease, but lacks visceral involvements and systemic manifestations. We herein report the case of a 56-year-old Chinese woman with this disorder who complained of subcutaneous tender nodules over her extremities, trunk, and face of 2 years' duration. She was firstly treated with 300 mg of oral roxythromycin for 8 weeks and subsequently treated with 400 mg of oral clarithromycin for the next 8 weeks. However, no significant effect was observed. She was then administered 200 mg of oral minocycline hydrochloride. After 1 week, her skin symptoms rapidly improved and no relapse has been observed in a follow-up period of 3 months. Considering that tetracycline antibiotics, but not macrolide antibiotics, inhibit the activity of pancreatic lipase in vitro, the efficiency of tetracycline antibiotics may be a clue to clarifying the pathogenesis of this disorder.

Anti-Bacterial Agents↗

Epidemiology of cutaneous leishmaniasis in Jordan: 1983-1992.

BACKGROUND: The extent of the problem of cutaneous leishmaniasis in Jordan during the decade 1983 to 1992 was investigated. METHODS: Data were collected from the dermatology departments and the laboratories of the Royal Medical Services and the Ministry of Health as well as from private dermatologists. Two thousand two hundred and ninety-five cases were verified of whom men represented 80%. The majority (80%) were < 25 years with the highest percentage (31%) occurring in the 16 to 20-year age group. RESULTS: The lowest number of cases was reported in June compared to the maximum in October, and the highest number recorded per year was 463 in 1992. For the decade, the Jordan Valley was the most important locality where 43% of the cases occurred. The incidence rate per 100,000 ranged from 1.89 in 1989 to 14.39 in 1984 and the period prevalence for the decade was 5.36 per 100,000. The time-lag between the appearance of a lesion and the first diagnosis extended from 0 to 23 months with the average being 2 months. The number of lesions per patient ranged from one to 45; 24% were located on the face, 28% on the upper extremity, 36% on the lower extremity, and 12% on other sites. CONCLUSIONS: The factors that contributed to the findings include infected rodent, nonexposed army recruits and farm workers, land reclamatory and relaxation of preventative measures.

Adolescent↗

Lichen planus presenting with erythema-multiforme-like bullous lesions in a patient with systemic scleroderma.

A patient with systemic scleroderma is described who developed a cutaneous eruption of papules and vesicobullae. Over time, the latter turned into papules. The histopathological and immunofluorescence features of the papular lesions were unequivocally those of lichen planus, while those of the bullous lesions reminded of erythema multiforme. Histologically, erythema multiforme shares common features with lichenoid reactions, such as necrotic keratinocytes. Our case suggests that erythema multiforme and lichen planus may coexist or succeed each other as different stereotype immune reactions against the same antigen(s) within the epidermis.

Blister↗