Pigmented Poroma Research Articles

Pigmented eccrine poroma in collision with seborrheic keratosis: Dermoscopic description and histological correlation

Poromas are rare, benign neoplasms arising from the terminal ductal portion of the sweat glands. They are mainly characterized by flesh-colored or pink papules or nodules, usually located at the extremities. The pigmented variant is rare. Collisions with other benign epithelial tumors have been reported. The clinical appearance may be confused with several benign or malignant tumor pathologies, yet thanks to dermoscopy, which is a non-invasive means of exploration, some signs are highly useful in the diagnosis and in suspecting the collision of two distinct tumors before proceeding to histological confirmation. Herein, we report the original case of a collision between pigmented eccrine poroma of the leg and seborrheic keratosis. Key words: Pigmented poroma; Collision; Dermoscopy; Histology; Seborrheic keratosis

Pigmented poroma on the scalp clinically mimicking basal cell carcinoma

Pigmented poroma on the scalp clinically mimicking basal cell carcinoma

Biopsy-proven pigmented poroma with no vascular structure in dermoscopy

International Journal of DermatologyVolume 53, Issue 6 p. e334-e335 Correspondence Biopsy-proven pigmented poroma with no vascular structure in dermoscopy Naoki Oiso MD, PhD, Naoki Oiso MD, PhD [email protected] Department of Dermatology, Kinki University Faculty of Medicine, Osaka-Sayama, JapanSearch for more papers by this authorHiromasa Matsuda MD, Hiromasa Matsuda MD Department of Dermatology, Kinki University Faculty of Medicine, Osaka-Sayama, JapanSearch for more papers by this authorAkira Kawada MD, PhD, Akira Kawada MD, PhD Department of Dermatology, Kinki University Faculty of Medicine, Osaka-Sayama, JapanSearch for more papers by this author Naoki Oiso MD, PhD, Naoki Oiso MD, PhD [email protected] Department of Dermatology, Kinki University Faculty of Medicine, Osaka-Sayama, JapanSearch for more papers by this authorHiromasa Matsuda MD, Hiromasa Matsuda MD Department of Dermatology, Kinki University Faculty of Medicine, Osaka-Sayama, JapanSearch for more papers by this authorAkira Kawada MD, PhD, Akira Kawada MD, PhD Department of Dermatology, Kinki University Faculty of Medicine, Osaka-Sayama, JapanSearch for more papers by this author First published: 14 February 2014 https://doi.org/10.1111/ijd.12209Citations: 2 Financial disclosures: None. Conflicts of interest: None. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article.Citing Literature Volume53, Issue6June 2014Pages e334-e335 RelatedInformation

Pigmented poroma with unsusual locatin and dermatoscopic features

Poroma is a benign adnexal neoplasm with atn “poroid”/ductal differentiation that mimics benign and malignant skin tumors. Histopathology shows circumscribed proliferation of poroid cells intermingled with a variable number of cuticular cells. We report a case of pigmented poroma located on the face that simulated clinically and dermatoscopically a pigmented basal cell carcinoma. The features of pigmented and non-pigmented poromas were revisited in order to assist in the diagnosis.

Pigmented Eccrine Poroma Occurring on the Scalp

We describe a man with a pigmented poroma on the scalp mimicking a pigmented melanocytic nevus. Histopathological examination showed that melanocytes were mostly distributed at the periphery of the tumor masses. It is suggested that melanocytes in the tumor masses may have migrated from the adjacent epidermis.