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Query: UMLS:C0042109 (urticaria)
 6,569 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Of 557 patients with occupational dermatoses seen at the Middle Road Hospital, Singapore, 55.7% (310) were irritant contact dermatitis, 38.6% (215) were allergic contact dermatitis and 5.7% (32) were non contact dermatitis. More than half of the patients were below 30 years old and most were from the construction (29.5%), metal/engineering (20.6%), electrical/electronic (16.4%), transport (5.5%) and food catering (3.8%) industries. Common occupational irritants included coolants, oils, cement, solvents, detergents and soldering flux. Chromates in cement was the most common occupational allergen. Other occupational allergens included rubber chemicals from rubber apparels. Thiurammix followed by carba-mix, and PPD-mix were common rubber allergens. Resins including epoxy, acrylate and paratertiary butyl phenol resins and other metals (nickel and cobalt) were less common occupational allergens. 5 workers had contact urticaria to proteinaceous food. Non dermatitic occupational dermatoses included fibreglass dermatoses, miliaria and oil folliculitis.
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PMID:Occupational skin disease in Singapore: epidemiology & causative agents. 296 3

We have reviewed 275 patients who were tested in the light testing clinic in the 10 years from 1972 to 1981. 151 patients (55%) were referred with eczematous changes of the skin attributed to light, while 76 (28%) had a history of polymorphic light eruption. Light tests gave abnormal results in 54 (36%) of the dermatitis group, showing a photoallergy in 17 patients and UV sensitivity with or without sensitivity to visible light in 30 patients. 7 out of 10 cases with clinical reactions to phenothiazines also had abnormal test results. Patients with polymorphic light eruption reacted normally in our test system. Abnormal tests were obtained in solar urticaria, in a few cases of non-eczematous phototoxic reactions, folliculitis of the acne type and systemic lupus erythematosus. Additional patch tests with standard allergens revealed a high % of contact sensitivity in the 30 UV sensitive patients.
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PMID:Skin testing with simple equipment in photodermatoses. 717 51

We investigated skin diseases associated with mucocutaneous Candida infection by analyzing the clinical records of 44695 in-patients of the department of dermatology of Kiel. For more than eighty skin diseases the relative risk (RR) was calculated by age-and sex-adjusting methods. 1996 patients demonstrated a mucocutaneous candidosis, 14.8% of them being hospitalized because of extensive Candida infection. In patients with dermatomyositis, bullous pemphigus, tinea inguinalis, and condylomata acuminata a Candida infection was observed more than threefold than expected. Furthermore, patients with urticaria, folliculitis, and bullous pemphigoid demonstrated candidosis more than twice as often as control patients. In addition, patients with erysipelas, acne, psoriasis, and atopic dermatitis showed a candidosis significantly more often (RR between 1.3 and 1.6). Some internistic maladies were investigated, too. In patients presenting with diabetes mellitus, heart-insufficiency, hypertension, chronic tonsillitis, and urinary tract infection a mucocutaneous Candida infection was significantly increased.
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PMID:[Mucocutaneous candidiasis in patients with skin diseases]. 763 Mar 73

We report 10 women and five men with papulonecrotic tuberculid, an uncommon form of cutaneous tuberculosis (TB). The mean age was 22.6 years (range, 2 1/2-35 years) at presentation. The Mantoux test was strongly positive in 13 patients. Five patients showed presumptive evidence of associated TB; in one case, the presence of TB was proven by culture. Response to anti-TB was dramatic in all cases. Clinical findings were similar to those previously published. We emphasize the simultaneous occurrence of erythema induratum, associated Takayasu's disease, possible associated phlebitic tuberculid, and clinical mimicry of acute bacterial endocarditis. The main histopathological findings obtained from 27 biopsy specimens included dermal necrosis (26 of 27 cases), a poorly formed granulomatous infiltrate (27 of 27 cases), vasculitis (11 of 27 cases), perivascular spongy edema (11 of 27 cases), and follicular necrosis or suppuration (five of 27 cases). A Ziehl-Neelsen stain was negative in all biopsy specimens. Immunohistochemical labeling revealed a preponderance of T-lymphocytes (UCHL-1+), monocytes-macrophages (S-100+), and Langerhans cells (ACT+), indicative of a type IV hypersensitivity reaction. B-lymphocytes (L26+) were sparse. Conditions that may be confused with PNT on clinical or histopathological ground include pityriasis lichenoides et varioliformis acuta, papular urticaria, papulopustular syphilide, miliary TB, septicemia, perforating granuloma annulare, chondrodermatitis nodularis, reactive perforating collagenosis, allergic granulomatosis, suppurative folliculitis, and infectious causes of palisading granulomas. Papulonecrotic tuberculid has distinct clinical, histopathological, and immunohistochemical features. Awareness of this entity is important since an appropriate diagnosis is necessary for the institution of timely curative treatment.
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PMID:Papulonecrotic tuberculid. A clinical, histopathological, and immunohistochemical study of 15 patients. 780 63

Fiberglass is widely used for insulation and as a reinforcement filling material. Handling fiberglass products may induce contact dermatitis. We report on the first two cases of fiberglass dermatitis reported in Taiwan. The first patient suffered from a severe pruritic eruption two hours after repairing a roof with wave-form ceiling boards. Erythematous maculopapules were present on both hands and finger webs. The second patient was a quality controller of printed circuit boards (PRCBs). She presented with erythematous maculopapules on the face and excoriated papules and lichenified plaques on the trunk and forearms, which had been present for two years. Scrapings of the skin lesions from both patients showed fiberglass spicules of 7.5 to 8 microns in diameter. Similar fibers were detected in scrapings from the wave-form ceiling board and PRCB. Histopathology of the second case revealed spongiotic psoriasiform dermatitis. Patch tests in case 2 with the plastics and glues series, epoxy resin and scrapings from the PRCBs were all negative. Fiberglass dermatitis may be easily misdiagnosed. Clinically, it may resemble scabies, eczematous dermatitis, folliculitis, petechiae and urticaria. A high index of suspicion is essential for a correct diagnosis.
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PMID:Fiberglass dermatitis: report of two cases. 790 53

Regarding Candida in dermatology, two pathogenetic pathways must be taken into account: 1. on infection of the skin 2. immunological reactions with skin alterations as a result of Candida infection or colonization in the mouth and/or intestine. Case reports describe typical situations of napkin dermatitis, intertriginous candidosis, the intrauterine Candida infection of the foetus, Candida granuloma, Candida folliculitis and Candida paronychia. In the second part results of investigations of patients suffering from psoriasis, atopic dermatitis and urticaria are presented. There were no differences in the colonization with Candida albicans and in the level of Candida antibody titres between patients and a healthy control group.
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PMID:[Candida in dermatology]. 1059 19

The tuberculids are hypersensitivity reactions to Mycobacterium tuberculosis (MTB) and include papulonecrotic tuberculid (PNT), lichen scrofulosorum, erythema induratum of Bazin (EIB), and phlebitic tuberculid. Papulonecrotic tuberculid displays papulonecrotic lesions mostly on the extensor surfaces of the limbs. Histopathology shows necrosis, granulomatous inflammation (GI), and occasionally vasculitis, usually in the superficial dermis. Erythema induratum of Bazin shows nodulo-ulcerative lesions on the posterior aspect of the legs. Histopathology reveals a septolobular panniculitis, necrosis, GI, and vasculitis. The Mantoux test is strongly positive and associated tuberculosis (TB) may be present in both conditions. MTB cannot be demonstrated with a Ziehl-Neelsen (ZN) stain or cultured. The polymerase chain reaction has demonstrated MTB DNA in PNT (50%) and EIB (25%). The tuberculids respond to full anti-TB treatment. We document four patients with nodules on the legs in whom the pathologic changes were situated in the deep dermis and adjacent subcutaneous fat. Nodular tuberculid (NT) is regarded as a suitable term for these lesions. All patients were female. Their ages were 19 months, 12 years, 17 years, and 5 years. All patients presented with nodules on the limbs. These nodules were approximately 1 cm in diameter, dull red or bluish-red, and nontender. Ulceration was not present. The number of nodules varied from a few to many. The Mantoux test was strongly positive in all the patients. Associated pulmonary TB was present in two patients. Histopathology showed GI (n = 4), vasculitis (n = 2), and coagulative necrosis (n = 2). A ZN stain was negative in each case. All patients received anti-TB treatment for 6 months [rifampicin (n = 4), isoniazid (n = 4), pyrazinamide (n = 4), and ethambutol (n = 2)]. At 12 months follow-up, skin and pulmonary lesions had resolved in all. Nodular tuberculid should be distinguished from arthropod bites and papular urticaria, dermal erythema multiforme, evolving vasculitis, evolving folliculitis, and erythema nodosum. Histopathologically NT should be distinguished from other causes of granulomatous vasculitis and GI with or without necrosis. In children with nodules on the limbs unresponsive to routine treatment, skin biopsy should be done to exclude NT. Nodular tuberculid represents a hybrid between PNT and EIB with characteristic clinicopathologic features and should be included in the classification of cutaneous TB.
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PMID:Nodular tuberculid: a report of four patients. 1088 48

Cutaneous manifestations are common clinical findings among HIV positive patients. The causes may be bacteria, viruses, fungi and other non-infectious agents. This study was conducted at the Pramongkutklao Hospital skin clinic to determine the frequency distribution of cutaneous manifestations in HIV positive patients. A total of 147 patients with HIV seropositivity were recruited and divided into a retrospective group and a prospective study group. For the retrospective study, hospital records of 129 patients who attended from January 1995 to November 1998 were recruited. The prospective study was carried out from November 1998 to January 1999 and 18 patients were recruited. Cutaneous finding among patients in the two studies were evaluated. There were ten common cutaneous manifestations observed in the retrospective and prospective study including pruritic papular eruptions (PPE) (51.2%, 50%), oral candidiasis (16.7%, 21.7%), herpes zoster (10.9%, 5.6%), oral hairy leukoplakia (10%, 5.6%), unclassified eczema (9%, 11.1%), urticaria (5.6%, 3.1%), seborrheic dermatitis (4.7%, 16.7%), folliculitis (4.7%, 5.6%), prurigo simplex (4.7%, 5.6%), and Steven-Johnson syndrome (3.9%, 0%). However, the distribution of cutaneous manifestations in the two studies were not significantly different. These findings may be useful as baseline data for common cutaneous manifestations in HIV positive patients.
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PMID:Cutaneous manifestations in HIV positive patients. 1148 81

Moisturizers are widely used in various dermatologic and cosmetic skin therapies. Different classes of moisturizers are based on their mechanism of action, including occlusives, humectants, emollients and protein rejuvenators. Commercially available moisturizers often utilize components of each of these classes to provide their beneficial effect. Dry skin (xerosis) is the major indication of use. Others include atopic dermatitis, irritant contact dermatitis, ichthyosis, and dermatoheliosis. Although generally efficacious, moisturizers can cause a number of unwanted side-effects, including occlusive folliculitis, irritation, allergic contact dermatitis and contact urticaria.
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PMID:Moisturizers: what they are and how they work. 1181 97

Histopatholgoical analysis of cutaneous lesions in 195 patients with HIV/AIDS was carried out between 1989 to 1997 at tertiary level public hospital in Mumbai. 104/195 (53%) cases showed infectious diseases which comprised of molluscum contagiosum (28), condyloma accuminata (18), verruca vulgaris (7), varicella zoster (5), syphilis (14), tuberculosis (13), donovanosis (4), leprosy (2), chancroid (2), bacillary angiomatosis (2), lymphogranuloma venercum (1), Norwegian scabies (3), leishmaniasis (2), demodicidosis (1), crytococcosis (1), tinea versicolor (1). In 12 (6%) cases neoplasms were observed which included squamous cell carcinoma (9), basal cell carcinoma (2) and kaposi's sarcoma (1) case. The miscellaneous conditions were observed in 66(33.5%) cases which comprised of psoriasis (21), papular urticaria (13), Reiter's disease (7) and eosinophilic folliculitis (6). The prevalence of cutaneous tuberculosis observed in this study is high as compared with western literature while the prevalence of kaposis's sarcoma is quite low as compared with reports from Africa, USA and United Kingdom.
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PMID:Spectrum of dermatopathologic lesions associated with HIV/AIDS in India. 1278 69


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