Dermoscopy Findings of Hidroacanthoma Simplex

Sato, Yota; Fujimura, Taku; Tamabuchi, Erika; Haga, Takahiro; Aiba, Setsuya

doi:10.1159/000363369

Cited by 10 publications

(11 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Like in flat SKs, also our case of PHS (Figure 3C) showed fingerprint-like structures around the hair follicles and comedo-like openings; however, the patient did not present any other similar lesions on the skin; therefore, an incisional biopsy was performed. In the literature, these dermoscopic and histopathological findings were reported when incisional biopsies were performed in the thinner part of the lesions [14,15].…”

Section: Discussionmentioning

confidence: 95%

Dermoscopic–Histopathological Correlation of Eccrine Poroma: An Observational Study

Chessa

Patrizi

Baraldi

et al. 2019

Dermatol Pract Concept

View full text Add to dashboard Cite

Background: Eccrine poroma (EP) is a benign adnexal neoplasm that can be pigmented in 17% of cases. Four histopathological variants of EP exist. Dermoscopically, EP can mimic many other skin neoplasms. Objectives: To provide a dermoscopic–histopathological correlation of EP, classifying the clinical and dermoscopic features of EPs on the basis of their histopathological subtype, in an attempt to better characterize these entities. Patients and Methods: A single-center retrospective study was conducted. Clinical data were collected; patients were classified on the basis of the 4 histopathological variants of EPs. Dermoscopic images were reviewed. A dermoscopic–histopathological correlation was performed, and the results were compared with literature data. Results: Twenty-six lesions were included, both pigmented and nonpigmented. Three of the 4 histopathological variants were identified. Different dermoscopic features were observed for each distinct histopathological subtype of EP. The lesions mimicked different types of other skin neoplasms, in particular: nonpigmented hidroacanthoma simplex resembled nonmelanoma skin cancer; pigmented hidroacanthoma simplex appeared like a seborrheic keratosis or a solar lentigo; EPs sensu stricto presented as pink nodules if nonpigmented and were similar to seborrheic keratosis if pigmented; dermal duct tumors appeared as pigmented nodular lesions. Conclusions: Distinct dermoscopic features appeared to be recurrent in each histopathological variant. Dermoscopy can provide important clues for the diagnosis of EP; the final diagnosis is allowed by histopathology. To achieve a correct diagnosis of EP, because of its clinical and dermoscopic variability, surgical excision is recommended.

show abstract

Section: Discussionmentioning

confidence: 95%

Dermoscopic–Histopathological Correlation of Eccrine Poroma: An Observational Study

Chessa

Patrizi

Baraldi

et al. 2019

Dermatol Pract Concept

View full text Add to dashboard Cite

show abstract

“…The white-blue color was not present at the periphery, but rather in the center of the lesion and, although polymorphous vessels were present, there were no crystalline structures and multiple erosions, as in eccrine poroma [ 10 ]. In our case, the lesion did not show whitish globular structures surrounded by homogenous, pigmented lines as in hidroacanthoma simplex [ 11 ]. Multiple red lagoons intersected by white lines were absent, thus also differentiating it from pyogenic granuloma [ 12 ].…”

Section: Discussionmentioning

confidence: 82%

Poroid Hidradenoma: Dermoscopic and In Vivo Reflectance Confocal Microscopic Description

Lupu

Tebeică²,

Malciu

et al. 2022

Diagnostics

View full text Add to dashboard Cite

Poroid hidradenoma (PH) is a rare, benign adnexal neoplasm usually presenting as a solitary, well circumscribed, asymptomatic papule or nodule that appears reddish and is occasionally tender. Since 1990, only a few cases of PH have been reported. We present a case of PH on the medial surface of the thigh and describe, for the first time, the dermoscopic and reflectance confocal microscopic (RCM) features in correlation with histology. A 67-year-old woman with unremarkable family or past medical history presented with a nodular lesion on the medial surface of the right thigh. The lesion had appeared 4 months earlier and rapidly enlarged. Physical examination revealed a 7 × 5 mm, non-tender, reddish nodule with clinically distinct margins. Dermoscopy showed central blue-grey pigmented areas, a polymorphous vascular pattern with arborizing, glomerular and hairpin vessels surrounded by white halos. RCM revealed an ovoid, well-outlined tumor, with a central area containing cells with distinctive morphologies, two types of tumor cells, tubular hypo-reflective structures, and rectilinear vessels in the stroma. These findings correlated with histological features, which established the diagnosis of PH. Even though the diagnosis of PH remains histopathological, non-invasive tools, such as RCM, can help rule out several malignancies, therefore reducing surgical-associated comorbidity.

show abstract

“…In the present case, HS dermoscopy revealed characteristic features, namely whitish globular structures surrounded by homogenous, pigmented lines, and globular structures covered with gatherings of the thick, oval keratotic materials, referred to as "muskmelon appearance". 10 In a recent report, dermoscopy of an eccrine porocarcinoma (EPC) arising from a HS revealed vessels in a conspicuous and irregular shape. 11 The differences on dermoscopy could be a helpful clue for the tumor grade.…”

Section: Discussionmentioning

confidence: 99%