Dermoscopy of Eccrine Poroma

Nicolino, Rachele; Zalaudek, Iris; Ferrara, Gerardo; Annese, Pietro; Giorgio, Caterina M.; Moscarella, Elvira; Sgambato, Anna; Argenziano, Giuseppe

doi:10.1159/000104270

Cited by 42 publications

(59 citation statements)

References 29 publications

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“…Other tumors may show hairpin vessels, like eccrine poromas, keratoacanthomas, porocarcinomas, etc. [24, 25]. We also found linear-irregular vessels in 70% of pilomatricomas.…”

Section: Discussionsupporting

confidence: 58%

Dermoscopic Findings of Pilomatricomas

et al. 2008

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Background: To the best of our knowledge, no specific dermoscopic criteria have been described in the medical literature for the diagnosis of pilomatricomas. Objectives: To evaluate the morphological findings of pilomatricomas under dermoscopic observation. Material and Methods: Dermoscopic examination (using the Dermlite Foto; 3Gen, LLC, Dana Point, Calif., USA) of 10 patients with pilomatricomas was performed to evaluate specific dermoscopic criteria and patterns. Results: The most frequently occurring dermoscopic features were found to be: irregular white structures (80%) and white streaks (70%); vascular structures in all lesions (reddish homogeneous area in 90%, hairpin vessels in 70%, linear-irregular vessels in 70% and dotted vessels in 40%); ulceration (60%), and structureless gray-blue areas in 20% of cases. The results of our study reveal that the absence of specific dermoscopic criteria for other skin tumors and the presence of irregular white structures and polymorphous/atypical vessels is the most frequent dermoscopic pattern in pilomatricomas. Conclusions: Dermoscopy may be a useful tool for improving the recognition of pilomatricomas. However, dermoscopy does not assure 100% diagnostic accuracy and pilomatricomas may represent in some cases, above all in elderly patients, a dermoscopic pitfall, being difficult to differentiate dermoscopically from other lesions, such as melanoma or basal cell carcinoma.

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“…Other tumors may show hairpin vessels, like eccrine poromas, keratoacanthomas, porocarcinomas, etc. [24, 25]. We also found linear-irregular vessels in 70% of pilomatricomas.…”

Section: Discussionsupporting

confidence: 58%

Dermoscopic Findings of Pilomatricomas

et al. 2008

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“…The authors initially considered the diagnosis to be amelanotic melanoma as it tends to present these dermoscopic features [7,9] . Nicolino et al observed a similar polymorphous vascular pattern in a non-pigmented eccrine poroma, but they observed the presence of a white-to-pink halo surrounding linear irregular vessels [3] . This was seen in our case in a smaller degree and it tends to be found in keratinizing neoplasms such a squamous cell carcinoma [7] .…”

Section: Discussionmentioning

confidence: 92%

“…However, there are a limited number of studies regarding dermoscopy of eccrine poroma to date. As it is predominantly a non-pigmented neoplasm, its dermoscopic evaluation should be focused doi: 10.18282/jsd.v1.i3.55 on the vascular patterns, as these have been described in previous studies [3][4][5][6][9][10][11] . The evaluation of the vascular patterns under dermoscopy requires a proper techniqueperformed with a contact liquid, preferably ultrasound gel, and with slight pressure applied on the lesion.…”

Section: Introductionmentioning

confidence: 99%

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Dermoscopy of a non-pigmented eccrine poroma

Diego

Beguerie

2016

J Surg Dermatol

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Eccrine poroma is a benign adnexal tumor arising from cells of the outer layer of the acrosyringium and upper dermal eccrine duct. It generally appears as a solitary, slow growing, sessile, pink-to-red and well-circumscribed papule, plaque or nodule. It is usually located on the palms and soles but it may also develop on other locations. Its clinical appearance can resemble other types of tumors such as hypo-or amelanotic melanoma. Dermoscopy has improved the evaluation of skin tumors. In the case of eccrine poroma, there are some studies that have described its dermoscopic findings. These mainly focus on its vascular structures. We present an 82-year-old patient who developed a 2×3-cm eccrine poroma on his lower back. Dermoscopy demonstrated the presence of a polymorphous vascular pattern displaying mostly linear looped (irregular hairpin-like) and -leaf-flower-like‖ vessels (-cherry-blossom‖ and -chalice-like‖), with some resembling -cactus-like‖ structures. Only a few linear coiled (glomerular) and linear helical (corkscrew) vessels were observed. Some of these vascular structures were surrounded by a whitish-to-pink halo. Moreover, some pink structureless areas were present. We highlight the finding of the -leaf-flower-like‖ vessels, as these are vascular structures that have not been described in other types of skin tumors.

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“…They concluded that physicians should be aware of the dermoscopic features of pigmented poromas that may result in a misdiagnosis of basal cell carcinoma. Nicolino et al [6] reported 2 cases of eccrine poroma examined by dermoscopy, one of which was a pigmented variant. They observed that the pigmented variant presented with a blue-white color associated with an eccentrically located black blotch and hairpin vessels on dermoscopy.…”

Section: Discussionmentioning

confidence: 99%

Dermoscopy of Pigmented Poromas

Minagawa

Koga²

2010

Dermatology

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Background: To date, little is known about the dermoscopic features of pigmented poromas. Methods: Twelve cases of pigmented poromas examined by dermoscpy at the Department of Dermatology, Shinshu University Hospital (Matsumoto, Japan), between January 2000 and February 2009 were collected. Retrospectively, digital dermoscopic images were evaluated for the presence of dermoscopic structures. Results: Vascular structures were observed in 8 of 12 cases. Hairpin vessels were found in 3 cases. Most were elongated and irregularly shaped. Polymorphous vessels were observed in 3 cases, of which 2 showed combinations of dotted vessels and linear-irregular vessels and 1 combinations of hairpin vessels and glomerular vessels. Arborizing vessels were observed in 2 cases. Globule-like structures occurred in 7 cases. Globule-like structures and arborizing vessels coexisted in 2 cases. Comedo-like openings were observed in 3 cases, all of which were accompanied by hairpin vessels. Conclusions: Pigmented poromas mimic a number of skin tumors, including pigmented basal cell carcinomas, seborrheic keratosis and malignant melanoma, because they present various clinical, dermoscopic and histopathological features.

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Dermoscopy of Eccrine Poroma

Cited by 42 publications

References 29 publications

Dermoscopic Findings of Pilomatricomas

Dermoscopic Findings of Pilomatricomas

Dermoscopy of a non-pigmented eccrine poroma

Dermoscopy of Pigmented Poromas

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