-
Views
-
Cite
Cite
K. Horie, K. Ito, Y. Hirata, M. Ito, Eccrine poroma on the helix: a rare anatomical presentation, Clinical and Experimental Dermatology, Volume 40, Issue 4, 1 June 2015, Pages 442–444, https://doi.org/10.1111/ced.12507
Close - Share Icon Share
Extract
Conflict of interest: the authors declare that they have no conflicts of interest.
An eccrine poroma (EP) is a benign neoplasm that was previously thought to originate solely from the eccrine sweat glands.1 Initially believed to present only on hairless acral surfaces, a more extensive distribution has been described.1,2,3 EP can be confused with other lesions, mainly including pyogenic granuloma, seborrhoeic keratosis, basal cell carcinoma and amelanotic melanoma. We present a case of EP on the helix, which, to our knowledge, is the first such case to be reported.
A 71‐year‐old Japanese woman presented with a 2‐month history of a slowly progressing nodule on her left helix.
Physical examination revealed a pink, soft papillomatous nodule 10 × 7 mm in diameter, which bled readily when touched (Fig. 1a,b).
Dermoscopy examination revealed ‘chalice‐form’ and ‘cherry‐blossom’ vessels, as well as structureless whitish‐pink areas (Fig. 1c).
Histological examination of a skin biopsy specimen taken from the nodule showed a proliferating nest of poroid cells in the epidermis, and eosinophilic cells forming small lumens (Fig. 1d,e).
