Hidroacanthoma simplex (HS) is a rare intraepidermal neoplasia that arises from the acrosyringial portion of the eccrine duct. 1 Lesions generally appear as a sharply demarcated brownish flat or verrucous plaque, which are often clinically misdiagnosed as seborrheic keratosis, Bowen's disease, or other adnexal tumors. 2 Histologically, it is ...

2018年6月30日 · Smith & Coburn first introduced the term hidroacanthoma simplex in 1956 to refer to an intraepidermal variant of poroma. The histopathologic findings of hidroacanthoma simplex are cuboidal or ovoid deratinocytes with a vesicular nucleus within an acanthotic epidermis arranged in well-circumscribed intraepidermal nests, with or without presence ...

Hidradenoma or acrospiroma is a benign dermal growth closely related to poroma except without connection to the epidermis. Hidroacanthoma can also be of apocrine or eccrine origin. It appears as a solitary nodule (lump) or cyst (when it is called cystic hidradenoma) and may appear on any site. Hidradenoma may be solid or produce a watery ...

2019年3月13日 · Hidroacanthoma simplex has been described as a purely intraepidermal poroma, while a dermal duct tumor has been described as an intradermal poroma. We have included hidroacanthoma simplex and dermal duct tumor as synonymous with poroma since most authors consider these tumors similar both clinically and histologically with the same derivation ...

Hidroacanthoma simplex is a rare benign eccrine adnexal tumor. Here, we present a case of hidroacanthoma simplex with giant lesion that occurred on the left lumbar region.

Hidroacanthoma simplex (HAS), also known as intraepidermal eccrine poroma, is a rare eccrine adnexal tumor that tends to be misdiagnosed as other types of benign skin tumor, including clonal seborrheic keratosis. Notably, HAS is sometimes ...

Hidroacanthoma simplex (HS) is a rare benign intraepidermal tumor that originates in the acrosyringial portion of the eccrine duct. Clinically, they are well-defined lesions, flat or verrucous brownish plaque, and can be misdiagnosed with other types of benign or malignant tumors.

Hidroacanthoma simplex (HAS) is a rare skin appendage tumor and is recognized as an intraepidermal variant of poroma. Pigmented HAS is an extremely rare variant with dendritic melanocytes and/or melanin pigment in the tumor cells and a few cases of pigmented HAS have been reported in the English literature.

2023年8月8日 · Hidroacanthoma simplex (HAS), a rare tumour arising from terminal sweat ducts, was initially characterized in 1956. As an intraepidermal variant of eccrine poroma, the vast majority of HAS cases are benign[2,3]. Malignant transformation is an infrequent occurrence and no dermoscopic features of malignant HAS have yet been reported.

Hidroacanthoma simplex is a rare benign intraepidermal brown Plaque on the Calf: A Case of Hidroacanthoma Simplex Though generally a benign lesion, hidroacanthoma simplex should be treated due to the low risk of malignant transformation. By christine anastasiou, Bs; JenniFer ahdout, Md; Francis dann, Md; edward w.