Indian Journal of Dermatology
ORIGINAL ARTICLE
Year
: 2007  |  Volume : 52  |  Issue : 3  |  Page : 141--144

Hyperpigmented keratotic plaques below the elbow and above the knee: An unexplored entity?


Sujata Sengupta, Jayanta Kumar Das, Asok Gangopadhyay 
 Department of Dermatology, RKM Seva Pratisthan and Vivekananda Institute of Medical Sciences, Kolkata, India

Correspondence Address:
Sujata Sengupta
UV-24/3C, Udayan, 1050/1, Survey Park, Kolkata - 700 075
India

Background: Hyperpigmented keratotic lesions below the elbow and above the knee are common, but not yet described in the literature. Aim: To clinicopathologically analyze the lesions to find out their etiology, aggravating factors, associated diseases and histopathological features. Materials and Methods: Thirty patients having such lesions were subjected to detailed history-taking and clinical examination. A biopsy from the local area was performed in all the cases. The data obtained was statistically analyzed. Results: The commonest age group affected comprised of middle-aged females. In 50% cases, friction played an important role, and in the rest, no cause was found. Majority of patients had no other dermatological or systemic disorders. Nonspecific histopathologic changes were observed in 60%. Conclusion: Our study points towards the existence of an idiopathic hyperpigmentation around the elbow and knee that is common and not associated with any other skin disorder and is histologically nonspecific.


How to cite this article:
Sengupta S, Das JK, Gangopadhyay A. Hyperpigmented keratotic plaques below the elbow and above the knee: An unexplored entity?.Indian J Dermatol 2007;52:141-144


How to cite this URL:
Sengupta S, Das JK, Gangopadhyay A. Hyperpigmented keratotic plaques below the elbow and above the knee: An unexplored entity?. Indian J Dermatol [serial online] 2007 [cited 2020 Oct 29 ];52:141-144
Available from: https://www.e-ijd.org/article.asp?issn=0019-5154;year=2007;volume=52;issue=3;spage=141;epage=144;aulast=Sengupta;type=0