Eccrine Poroma of the Auricle: A Case Report

Eccrine poroma is described as a benign neoplasm originating from the intraepidermal eccrine duct of sweat glands. This tumor is known to arise in bare skin areas, but more rarely appeared in head and neck region. A 54-year-old female presented with a mass on the retroauricular aspect of the left auricle. There was a soft, protruding, and purple-colored, solitary mass of about 1.0×1.0 cm in size. After authors performed an excisional biopsy, eccrine poroma was confirmed histopathologically. Thus, we report a rare case of eccrine poroma of the ear with the review of literature.

[1]  J. Khurana,et al.  Eccrine Poroma of the External Auditory Canal. , 2015, Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology.

[2]  A. Khachemoune,et al.  Poroma: a review of eccrine, apocrine, and malignant forms , 2014, International journal of dermatology.

[3]  Hyung Ok Kim,et al.  Eccrine Poroma on the Postauricular Area: A Rare Presentation , 2013, Annals of dermatology.

[4]  A. Nepal,et al.  Eccrine poroma in neck of a child--a rare presentation. , 2009, Nepal Medical College journal : NMCJ.

[5]  K. Helm,et al.  Poromas of the head and neck. , 2001, Journal of the American Academy of Dermatology.

[6]  L. Requena,et al.  Neoplasms With Apocrine Differentiation , 1998 .

[7]  T. Kwan.  Neoplasms With Eccrine Differentiation , 1991 .

[8]  Kim Tj,et al.  Eccrine Poroma: An Unusual Variant. , 1983 .

[9]  H. Pinkus,et al.  Eccrine poroma; tumors exhibiting features of the epidermal sweat duct unit. , 1956 .