Dermoscopy of Eruptive Syringoma

Syringoma is a benign adnexal tumor of eccrine origin. Eruptive syringoma (ES) is a rare variant and can mimic other diseases especially lichen planus (LP). The dermoscopic observation of ES is not well described. We report here a case of ES, initially misdiagnosed as LP. The dermoscopic findings showed fine reticulate brown lines on a light brown background contrarily to the findings usually seen in LP. These findings prompt a skin biopsy which subsequently confirmed the diagnosis of ES. The use of dermoscopy in ES can be useful and may help differentiate it from other diseases.

Eruptive Syringoma: Two Cases with Dermoscopic Features

Syringoma is an adnexal tumor typically observed on the periorbital region and readily diagnosed by clinical examination. Eruptive syringoma is a rare variant that is commonly confused with mastocytosis and lichen planus clinically. The diagnosis is generally confirmed by typical histopathological features. Herein, we report two eruptive syringoma cases along with the dermoscopic features. Through our dermoscopic evaluation before skin biopsy, we detected features also reminding that of maculopapular mastocytosis as reticular light brown lines, structureless light-brown areas, and reticular vessels. Additionally, as an additional pattern, shiny white dots were observed in the vulvar variant.

Eruptive Tumors of the Follicular Infundibulum: An Unexpected Diagnosis of Hypopigmented Macules

Background

Tumor of the follicular infundibulum (TFI) is considered as a rare benign neoplasm providing two distinctive clinical patterns: the solitary and the eruptive form. The clinical presentations resemble many other dermatologic conditions and require histopathological study to make a definite diagnosis.

Objective

To inform physicians of a clinical presentation of TFI.

Case Report

We report on a 50-year-old man who presented with multiple asymptomatic hypopigmented macules resistant to the treatments. The histopathological study was consistent with tumors of the follicular infundibulum.

Conclusion

Hypopigmented macules are one of the more common clinical presentations in dermatological practices. It is important to include TFI in the differential diagnosis when a patient with hypopigmented lesions does not respond to the treatment based on the clinical diagnosis.

Electronic supplementary material

The online version of this article (doi:10.1007/s13555-015-0079-0) contains supplementary material, which is available to authorized users.

Cutaneous syringoma: a clinicopathologic study of 34 new cases and review of the literature

BACKGROUND

Syringoma is a benign adnexal tumor derived from intraepidermal eccrine duct.

AIM

The aim of the study is to report the experience concerning syringoma by reviewing the clinical and histopathologic features of a series of 34 histologically diagnosed syringoma patients observed over a period of six years.

MATERIALS AND METHODS

Thirty-four patients were sorted into two groups, localized and generalized syringoma, according to the Friedman and Butler classification. Different histopathologic findings were recorded in specially designed questionnaires for further analysis.

RESULTS

Ninety-seven percent of the patients were females with the mean age of 27.6 years. The mean duration of the lesions before the presentations was six years. The diagnosis of syringoma was only considered in 23 patients (67.6%) and was the initial diagnosis in only 13 (38.2%) patients. All histological findings were seen more common in our cases. in comparison to the documented cases in the literature. Clear cell change of epithelial eccrine cells was 85.2% and there was no difference in the histopathological findings in the two groups. Our patients with generalized syringoma (GS) had a considerable lower age of onset than the ones with localized syringoma (LS) (P = 0.027).

CONCLUSION

Our patients with generalized syringoma were younger than the ones with localized syringoma. Distribution of the generalized syringoma was mainly in the chest and neck followed by the forearms whereas localized syringoma was mostly confined to the face, axilla and genitalia. There were also some conditions associated with our cases including sarcoidosis, calcinosis cutis and basal cell carcinoma.

Acquired multifocal tufted angiomas in an immunocompetent young adult

Tufted angioma (TA) is a rare benign vascular neoplasm, localized to the skin and subcutaneous tissues, occurring primarily on the trunk and extremities of children. The lesions are usually asymptomatic but, rarely, paroxysmal painful episodes may be associated. The occurrence of eruptive TA is still rarer and had been described almost exclusively in association with immunocompromised states. We report here a case of acquired painful multifocal tufted angiomas on the face and neck in an immunocompetent young adult.