Biomedical subjects

Arash Taheri

Publications and source records attributed to Arash Taheri.

5 recordsLinked to original sources

PubMed2006

Value of direct immunofluorescence in predicting remission in pemphigus vulgaris.

BACKGROUND: Pemphigus vulgaris is characterized by the presence of autoantibodies to desmogleins. Multiple relapses and remission may occur during the course of the disease. The goal of this study was to determine whether direct immunofluorescence study has any value in detecting immunological remission of pemphigus vulgaris. METHODS: Fifty-seven patients with pemphigus vulgaris who were in clinical remission for at least 3 months, while taking prednisolone 5-7.5 mg/day, were recruited retrospectively for the study. Direct immunofluorescence study had been performed in all patients after a period of at least 3 months in clinical remission. Treatment had been discontinued in all patients with negative results of direct immunofluorescence. RESULTS: Of 57 patients who were in clinical remission, 24 patients (42%) had negative and 33 patients (58%) had positive results of direct immunofluorescence. Eleven patients (46%) with negative results of direct immunofluorescence relapsed within the first year of the follow-up period. Nine patients with negative direct immunofluorescence had a history of more than 6 months of clinical remission before direct immunofluorescence study. Among them, two patients (22%) relapsed. None of four patients with history of more than 12 months of clinical remission before a negative direct immunofluorescence study relapsed. CONCLUSIONS: Negative direct immunofluorescence is an indicator of immunological remission in patients with pemphigus vulgaris after 6-12 months in clinical remission.

Adult↗

PubMed2005

Eruptive syringomas.

Syringomas are benign adnexal tumors derived from the intraepidermal portion of eccrine sweat ducts. Usually, they present as soft, flesh-colored to slightly yellow dermal papules on the lower eyelids of healthy individuals. We report an 18-year-old man with rare presentation of eruptive syringomas involving his trunk and extremities, with linear arrangement on the arms and forearms. A biopsy obtained from the lesions of the dorsum of the hands showed eccrine syringoma with a lymphocytic inflammatory infiltration around superficial blood vessels and eccrine ducts. We used the 585-nm and 595-nm pulsed dye laser for treatment of inflammatory lesions of forearm and trunk with no success.

Adolescent↗

PubMed2005

Computer-aided dermoscopy for diagnosis of melanoma.

BACKGROUND: Computer-aided dermoscopy using artificial neural networks has been reported to be an accurate tool for the evaluation of pigmented skin lesions. We set out to determine the sensitivity and specificity of a computer-aided dermoscopy system for diagnosis of melanoma in Iranian patients. METHODS: We studied 122 pigmented skin lesions which were referred for diagnostic evaluation or cosmetic reasons. Each lesion was examined by two clinicians with naked eyes and all of their clinical diagnostic considerations were recorded. The lesions were analyzed using a microDERM dermoscopy unit. The output value of the software for each lesion was a score between 0 and 10. All of the lesions were excised and examined histologically. RESULTS: Histopathological examination revealed melanoma in six lesions. Considering only the most likely clinical diagnosis, sensitivity and specificity of clinical examination for diagnosis of melanoma were 83% and 96%, respectively. Considering all clinical diagnostic considerations, the sensitivity and specificity were 100% and 89%. Choosing a cut-off point of 7.88 for dermoscopy score, the sensitivity and specificity of the score for diagnosis of melanoma were 83% and 96%, respectively. Setting the cut-off point at 7.34, the sensitivity and specificity were 100% and 90%. CONCLUSION: The diagnostic accuracy of the dermoscopy system was at the level of clinical examination by dermatologists with naked eyes. This system may represent a useful tool for screening of melanoma, particularly at centers not experienced in the field of pigmented skin lesions.

Adolescent↗

PubMed2005

Localized forms of steatocystoma multiplex: case report and review of the literature.

A 70-year-old man presents with multiple asymptomatic, yellow to skin-colored firm papules scattered on the scalp; the lesions had been present for about 30 years. Histological findings are consistent with the diagnosis of steatocystoma. We review the English-language literature of the published cases of localized forms of steatocystoma multiplex.

Aged↗

PubMed2005

The association between nuchal nevus flammeus and alopecia areata: a case-control study.

BACKGROUND: The association of alopecia areata (AA) with nuchal nevus flammeus (NNF) has been demonstrated by previous studies. OBJECTIVES: The aim of this study was to investigate whether AA is associated with NNF. METHODS: 199 AA patients and 215 controls without AA were examined for the presence of NNF. RESULTS: 35 patients (17.6%) in the AA group had NNF. In the control group, 20 patients (9.3%) had NNF (odds ratio = 2.08, 95% confidence interval 1.43-2.73; p = 0.013). A statistically significant association was found between the presence of NNF and duration of the AA (p < 0.001). The presence of NNF was associated with severity of AA (p < 0.001). CONCLUSIONS: The results of our study suggest a link between NNF and AA especially in severer and more chronic forms.

Adolescent↗