Eccrine poroma: another cause of a pigmented scalp nodule

Kakinuma, H.; Kobayashi, Masashi

doi:10.1046/j.1365-2133.2002.04650.x

Cited by 9 publications

(6 citation statements)

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“…3 Three pigmented poromas on the scalp have been reported in the English literature. [6][7][8] Jin et al 6 did not detail the distribution of melanocytes in the tumor that they reported. Lee et al 7 described many dendritic melanocytes scattered throughout the tumor.…”

Section: Discussionmentioning

confidence: 97%

“…In Kakinuma and Kobayashi's case, many melanocytes were distributed in the upper part of the tumor nests in the dermis. 8 The derivation of the melanocytes in the tumor nests of eccrine poroma is as yet uncertain. 7 A symbiotic relationship existing between melanocytes and epidermal cells under normal or pathologic conditions has been suggested.…”

Section: Discussionmentioning

confidence: 99%

“…2 However, the co-existence with melanocytes in the tumor masses in eccrine poroma has rarely been reported. [3][4][5][6][7][8] We herein describe a man with pigmented eccrine poroma simulating pigmented nevus on the scalp. The histogenesis of the pigmentation in eccrine poroma is discussed.…”

mentioning

confidence: 99%

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Pigmented Eccrine Poroma Occurring on the Scalp

Ohata

Hara²,

Suzuki³

2006

The American Journal of Dermatopathology

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

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Pigmented Eccrine Poroma Occurring on the Scalp

Ohata

Hara²,

Suzuki³

2006

The American Journal of Dermatopathology

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“…Usually, the absence of melanin granules and melanocytes is regarded as one of the characteristics of eccrine poroma. However, pigmented examples have been reported 9–16 . Many of them were found in Asians.…”

Section: Discussionmentioning

confidence: 99%

A single lesion showing features of pigmented eccrine poroma and poroid hidradenoma

Chiu

Lan

et al. 2008

J Cutan Pathol

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Poroid hidradenoma (PH) is a variant of poroma. This entity was defined by Abenoza and Ackerman in 1990. This neoplasm shows architectural characteristics of hidradenoma (tumor cells confined entirely within the dermis in both solid and cystic components) and cytologic characteristics of poroid neoplasm (poroid and cuticular cells, the latter showing ductal differentiation). We herein document a case of single poroid lesion with the features of both eccrine poroma and PH. The patient was a 55-year-old woman with a pigmented nodular lesion on her upper back for 7 years. The histopathologic features of the lesion were consistent with those of eccrine poroma and PH. Unlike most eccrine poromas, this case was pigmented, clinically and microscopically.

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“…It generally appears as a dome‐shaped papule, nodule, or plaque of pink to dark red color. However, unusual forms such as melanin‐pigmented tumor or a pedunculated nodule have been described. Here we report a case of eccrine poroma with a peculiar pendulum‐like large tumor attached to the skin with a thin neck.…”

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confidence: 99%