The knowledge that cervical neoplasia are caused by human papillomavirus (HPV) infection has led to the evaluation of its role in screening. We evaluated the accuracy of HPV testing by Hybrid capture II (HC II) method in detecting cervical intraepithelial neoplasia grade 2 and 3 (CIN 2 and 3) lesions in 4 cross-sectional studies with common protocol and questionnaire in 3 different locations (Kolkata, Mumbai and Trivandrum) in India. These studies involved 18,085 women aged 25-65 years. The reference standard for final diagnosis was a combination of colposcopy/biopsy. All women were investigated with colposcopy and 3,116 received directed biopsy. The sensitivity of HPV testing for detecting CIN 2-3 lesions varied from 45.7% to 80.9% across the study sites; the specificity varied from 91.7% to 94.6% and the positive predictive value from 6.7% to 13.7%. Retesting of 298 randomly chosen denatured samples in France revealed an agreement rate of 85.9% and a -value of 0.72. Although HPV testing seems to be a promising approach for cervical cancer prevention, a large range in sensitivity was observed in our study, possibly due to variations in the quality of specimen collection and reference standards. A higher sensitivity was associated with the center performing the test well. Further developments in terms of more reproducible, less expensive and less sophisticated testing are essential to make the test feasible and effective in low-resource settings. © 2004 Wiley-Liss, Inc. II; accuracy; sensitivity; specificity; cervical neoplasia; screening; prevention It has been well established that cervical neoplasia are caused by persistent infection with certain oncogenic types of human papillomaviruses (HPVs). 1,2 This knowledge has led to the evaluation of potential applications in the prevention of cervical cancer such as vaccination and its usefulness in the primary screening, in secondary triage and in the follow-up of treated cases of cervical neoplasia. In the setting of primary screening, HPV testing is being evaluated as a potential alternative or adjunctive to cervical cytology for the early detection of cervical cancer precursors and prevention of invasive cervical cancer. HPV testing is intuitively a more objective test than cytology or visual methods, which are based on the interpretation by the readers and are subject to wide interobserver variations. In low-resource settings, where repeated testing of women at risk for cervical neoplasia may not be feasible due to logistic, organizational and financial reasons, HPV testing may provide an objective method of identifying and investing the limited resources on women at risk for disease. Key words: HPV testing; Hybrid captureWe evaluated the accuracy of HPV testing by Hybrid capture II (HC II) method (Digene, Gaithersburg, MD) in detecting cervical intraepithelial neoplasia lesions grade 2 and 3 (CIN 2-3) in 4 cross-sectional studies in 3 different locations in India. This was a joint collaborative project between the Chittaranjan National Cancer Institute (CN...

Superficial and medium depth peels are dynamic tools when used as part of office procedures for treatment of acne, pigmentation disorders, and photo-aging. Results and complications are generally related to the depth of wounding, with deeper peels providing more marked results and higher incidence of complications. Complications are also more likely with darker skin types, certain peeling agents, and sun exposure. They can range from minor irritations, uneven pigmentation to permanent scarring. In very rare cases, complications can be life-threatening.

Exogenous ochronosis (EO) is a cutaneous disorder characterized by blue-black pigmentation resulting as a complication of long-term application of skin-lightening creams containing hydroquinone but may also occur due to topical contact with phenol or resorcinol in dark-skinned individuals. It can also occur following the use of systemic antimalarials such as quinine. EO is clinically and histologically similar to its endogenous counterpart viz., alkaptonuria, which, however, exhibits systemic effects and is an inherited disorder. Dermoscopy and in vivo skin reflectance confocal microscopy are noninvasive in vivo diagnostic tools. It is very difficult to treat EO, a cosmetically disfiguring and troubling disorder with disappointing treatment options.

Since their introduction, topical corticosteroids have become indispensable in the treatment of various dermatoses. Hydrocortisone was the first compound. Modifications in the basic structure generated in vivo activity and thus different topically active compounds were discovered. Apart from the Stoughton vasoconstrictor assay, various other methods are used for potency assessment of topical corticosteroids. Topical corticosteroides are classified based upon potency and action of these molecules. Mechanism of action at the cellular level and indications of topical corticosteroid use have been discussed. Various adverse effects often occur as an extension of their activity combined with inappropriate usage. Tachyphylaxis and contact allergy are potential problems in clinical practice. Newer compounds with improved risk-benefit ratio are available.

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Background:Sun exposure causes extensive intrinsic as well as extrinsic changes in the skin. Pathogenic effects of sun exposure such as tanning, melasma, skin cancer, and aggravation of various photodermatoses such as systemic lupus erythematosus (SLE) may be prevented by the use of sunscreens. We conducted the present study to assess the knowledge and attitudes regarding sun exposure and use of sunscreens.Methods:Two thousand and thirty-seven volunteers answered the questionnaire over a period of 2 years. All adults aged 18 years and above who voluntarily agreed to participate in the study after written informed consent were included.Results:Out of 2037 volunteers, 1242 volunteers had no knowledge of sunscreens. Sixty-eight percent of the volunteers from the upper class of society knew about sunscreens, and 86% of the volunteers from the lower middle class did not know about sunscreens. Eight-one percent of the volunteers did not suffer from sunburns. Eight-four percent of the volunteers were aware that sun exposure caused darkening, but awareness about other effects of sun exposure such as wrinkling, melasma, allergy, and photo-induced cancers was less. Most of the volunteers agreed that sunscreens protected against sun damage and tanning. Fifty-eight percent of the volunteers applied sunscreen before venturing out, and 78% of the volunteers applied sunscreen only on the face. Prevention of tanning was the most common reason for the usage of sunscreens. Cosmetic appeal and irritant potential were the prominent deciding factors in choosing sunscreens.Conclusion:Awareness about protective spectrum of sunscreens, their correct method of application, and misconceptions need to be focused on. Better product development keeping in mind the Indian conditions would help in increasing the usage of sunscreens.

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