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Year : 2014  |  Volume : 17  |  Issue : 2  |  Page : 109-111

Eosinophilia in dermatological diseases: A study of one hundred patients

Department of Dermatology, MVJ Medical College and Research Hospital, Bangalore, Karnataka, India

Correspondence Address:
Ambika Harihara Subramony
Department of Dermatology, MVJ Medical College and Research Hospital, B601, Sriram Shrishti Apartments, Sumangali Sevashram Road, Anand Nagar, Hebbal, Bangalore 560 032, Karnataka
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DOI: 10.4103/1119-0388.140430

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Introduction: Eosinophils are multifunctional cells that play a characteristic role in various diseases of allergic and infective etiology. Eosinophils play an important role in immunity hence eosinophilia occurs in various diseases of skin and systemic allergic disorders. Materials and Methods: One hundred patients admitted to the Dermatology ward with absolute eosinophil count (AEC) above 500 cells per cubic millimeter were included in the study. Detailed history, including, drug history, travel history, history of atopy, and insect bites, was taken. A complete hemogram, stool examination, chest x-ray, and serological test were done to rule out eosinophilia due to other causes. Results: In our study, most of the patients (40%) were between the age group of 40 and 60 years. Fifty-six percent were male patients. Most of the patients (98%) fell in the category of mild-to-moderate eosinophilia. Marked eosinophilia was seen in only 2%. Most common skin conditions were chronic urticaria (28%) followed by generalized pruritus (16%), eczema (10%), drug reaction (10%), psoriasis (7%), bullous diseases (6%), palmoplantar keratoderma (4%), and HIV (4%). Malignancy was seen in 2%. Other conditions constituted 13%. Out of all these, 12% had stool examination positive for ova and cysts. Histopathological examination was done in 22 patients, 12 of whom showed tissue eosinophilia. Conclusion: Peripheral blood eosinophilia and/or infiltration of skin by eosinophils occur in various skin diseases. Coexisting parasitic infestations may be a predominant contributing factor for eosinophilia in tropical countries.

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