Melanocyte colonization associated with malignant transformation of eccrine poroma

Hj, Lee; Sh, Jeong; Ej, Seo; Sj, Ha; Jw, Kim

doi:10.1046/j.1365-2133.1999.03070.x

Cited by 11 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Melanocyte colonization in association with eccrine poroma and malignant eccrine poroma has already been reported [12, 13, 14, 15, 16, 17]and has been described in a variety of other malignant tumors as well [18]. The origin of these melanocytes in eccrine poroma is still uncertain.…”

Section: Commentsmentioning

confidence: 99%

In vivo Confocal Imaging of Pigmented Eccrine Poroma

Tachihara

Choi²,

Langley³

et al. 2002

Dermatology

View full text Add to dashboard Cite

Background: Near-infrared reflectance confocal microscopy (CM) imaging is a noninvasive technique that can be utilized to evaluate histologic features of cutaneous lesions in vivo. Objective: A case of pigmented eccrine poroma was examined with CM. Methods: Confocal images were taken to define the features of the lesion and correlated with transverse hematoxylin-eosin (HE)-stained sections. Results: In CM imaging, a well-demarcated homogeneous nest consisting of small uniform cells was seen. The nest contained nonrefractile dark spaces that may represent cuticuli. Many dendritic melanocytes containing melanin were intermingled with the tumor cells, and numerous melanophages were present in the upper dermis. A marked prominence of surrounding vessels was also demonstrated. Conclusions: CM could well demonstrate the features of a pigmented eccrine poroma, as correlated with transverse HE-stained sections. However, high reflectance signals from melanin had to be carefully considered before a definitive diagnosis could be made.

show abstract

Section: Commentsmentioning

confidence: 99%

In vivo Confocal Imaging of Pigmented Eccrine Poroma

Tachihara

Choi²,

Langley³

et al. 2002

Dermatology

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 98%

“…The preferential attachment means that the probability of a new link to end up in a vertex i is proportional to connectivity k i of this vertex. The validity of the preferential attachment was confirmed within real networks analyses [7][8][9]. The BA algorithm generates networks with the desirable scale-free distribution P (k) ∼ k −3 and small values of the average shortest path.…”

Section: Introductionmentioning

confidence: 99%

Higher order clustering coefficients in Barabási–Albert networks

Fronczak¹,

Hołyst²,

Jedynak³

et al. 2002

Physica A: Statistical Mechanics and its Applications

View full text Add to dashboard Cite

Higher order clustering coefficients C(x) are introduced for random networks. The coefficients express probabilities that the shortest distance between any two nearest neighbours of a certain vertex i equals x, when one neglects all paths crossing the node i. Using C(x) we found that in the Barabási-Albert (BA) model the average shortest path length in a node's neighbourhood is smaller than the equivalent quantity of the whole network and the remainder depends only on the network parameter m. Our results show that small values of the standard clustering coefficient in large BA networks are due to random character of the nearest neighbourhood of vertices in such networks.

show abstract

Eccrine porocarcinoma of the head and neck: Meta‐analysis of 120 cases

Janik

Liu

et al. 2020

Head & Neck

View full text Add to dashboard Cite

Background The aim of the study is to analyze potential prognostic factors and to evaluate therapy strategies regarding clinical outcome in patients with eccrine porocarcinoma (EPC) of the head and neck. Methods One hundred and sixteen EPC cases from ninety studies and four authors' EPC cases were included in the meta‐analysis. Results At an average follow up of 20.48 months, the 3‐year overall survival and regional recurrence rate were 70.3% and 19.0%, respectively. Patients without surgical treatment had a significantly worse 3‐year overall survival. Mohs microscopic surgery led to significantly less occurrence of regional recurrences compared to wide excision. An ulcerating lesion, high mitotic activity, and lymphovascular invasion were significant prognostic factors. Conclusion Surgical resection is the cornerstone in the therapy of EPC and represents the therapeutic modality that offers the best chance of disease‐free survival. Due to the high probability of recurrence, close follow‐ups are strongly recommended.

show abstract

Melanocyte colonization associated with malignant transformation of eccrine poroma

Cited by 11 publications

References 7 publications

In vivo Confocal Imaging of Pigmented Eccrine Poroma

In vivo Confocal Imaging of Pigmented Eccrine Poroma

Higher order clustering coefficients in Barabási–Albert networks

Eccrine porocarcinoma of the head and neck: Meta‐analysis of 120 cases

Contact Info

Product

Resources

About