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eISSN: 2084-9893
ISSN: 0033-2526
Dermatology Review/Przegląd Dermatologiczny
Bieżący numer Archiwum Artykuły zaakceptowane O czasopiśmie Zeszyty specjalne Rada naukowa Bazy indeksacyjne Prenumerata Kontakt Zasady publikacji prac Standardy etyczne i procedury
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SCImago Journal & Country Rank
5/2023
vol. 110
 
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Opis przypadku

Eccrine angiomatous hamartoma

Natalia Dąbrowska
1
,
Joanna Czuwara
1
,
Olga Warszawik-Hendzel
1
,
Małgorzata Olszewska
1
,
Lidia Rudnicka
1

  1. Department of Dermatology, Medical University of Warsaw, Warsaw, Poland
Dermatol Rev/Przegl Dermatol 2023, 110, 637-639
Data publikacji online: 2024/02/02
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- Eccrine.pdf  [0.17 MB]
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INTRODUCTION

Eccrine angiomatous hamartoma (EAH) is a rare tumour characterised by a complex structure [1]. It manifests as a solitary nodule or plaque, occasionally as a papule or pink-coloured macule due to the presence of dilated blood vessels, mimicking angioma [1]. The lesion varies in size, from 3 mm to 11 cm, and in colour. It may be reddish, bluish-brown, yellowish, violaceous or skin-coloured, depending on the number of vessels in relation to the hyperplasia of mature eccrine glands [2]. EAH is most typically located on the acral areas of the lower or upper extremities, particularly the palms or soles, but occasionally it may develop on the trunk, on the nape, and in the inguinal region [3–5]. In majority of cases, the lesion is congenital in origin. However, there are case reports in the literature describing the occurrence of EAH during the prepubertal period or in adulthood [4, 6]. Histopathology of the lesion reveals an increased number of normal eccrine glands alongside dilated blood vessels [3].

OBJECTIVE

To report the case of a young man with a nodular lesion located on the lateral surface of the foot since birth.

CASE REPORT

A 25-year-old patient presented to the dermatology outpatient clinic because of a solitary nodular lesion on the lateral surface of his left foot (fig. 1). The lesion had been present since birth and expanded in size during adolescence. It was accompanied by hyperhidrosis, which could be noticed on clinical examination. The patient denied any concomitant symptoms.
During the diagnostic work-up, dermoscopy, mycological examination, and skin biopsy were performed. Dermoscopic evaluation revealed acrosynringia openings with macerated epidermis around, without any other pathological features (figs. 2, 3). Mycological assessment showed no fungal elements. Histopathology revealed proliferation of the eccrine glands and their ducts, and increased number of blood vessels with wide lumens, providing clues for the diagnosis of eccrine angiomatous hamartoma (figs. 4, 5).

DISCUSSION

The aetiology of EAH is not fully elucidated. The mechanism underlying EAH most likely involves a biochemical fault in the interactions between differentiating epithelium and adjacent mesenchyme, resulting in abnormal proliferation of adnexal and vascular structures [7]. The lesion may be asymptomatic or present with symptoms including pain, variations in temperature, and hyperhidrosis. In extraacral locations, hypertrichosis may be present [2]. As a rule, EAH requires no treatment [8, 9]. Topical botulinum toxin injections are used for the management of hyperhidrosis [10]. The lesion can be surgically removed for aesthetic purposes or to eliminate associated pain [11]. There have also been attempts to treat EAH with laser therapy [12].
Eccrine angiomatous hamartoma is a rare developmental hamartoma which requires differential diagnosis with vascular malformations, smooth muscle hamartoma, tufted angioma, blue rubber bleb nevus or glomus tumour [13, 14].

CONCLUSIONS

In this report, we present a case of eccrine angiomatous hamartoma, a rare benign developmental tumour. The diagnosis is made on the basis of characteristic microscopic findings. In the majority of cases, patient management is limited to the diagnosis. Treatment or surgical removal of the lesion can also be performed depending on the accompanying symptoms and patient expectations.

CONFLICT OF INTEREST

The authors declare no conflict of interest.
References
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