What is nodular hidradenoma?

What is nodular hidradenoma?

Nodular hidradenoma (NH) is a benign adnexal tumor that arises from either eccrine or apocrine sweat glands. NH can originate from any cutaneous site, but the most common sites are the head and anterior surface of the trunk, with very rare cases in the extremities.

Can hidradenoma become malignant?

Hidradenomas are by definition benign, with malignant transformation very rare. When tumors show malignant characteristics, they are known as hidradenocarcinoma. Surgical excision is usually curative and local recurrences are rare, although malignant tumors may metastasize.

What is malignant hidradenoma?

Background: Malignant nodular hidradenoma (MNH) is an infrequent, highly malignant, primary skin tumour derived from eccrine sweat glands. Most tumours occur in elderly individuals. MNH has very poor prognosis, high recurrence and a high rate of metastases.

What is solid cystic hidradenoma?

Solid-cystic hidradenoma is a benign cutaneous tumor with eccrine sweat gland origins that is most commonly found in the head, neck, trunk, and upper extremity regions of patients in the middle to older age groups. These lesions are generally asymptomatic, slow-growing, solitary, and nonulcerative in presentation.

Is a poroma benign?

Poroma is a benign tumor, mostly asymptomatic, and the prognosis is usually good. Patient education regarding malignant transformation, i.e., porocarcinoma is not necessary because its risk is similar to normal skin.

What is dermal duct tumor?

Dermal duct tumor is a rare, benign tumor. Clinically, dermal duct tumor presents as a firm papule, plaque or nodule, particularly on the lower limbs or head and neck region. Dermal duct tumor is been classified as poroma.

What is Hidradenoma Papilliferum?

Hidradenoma papilliferum is a rare benign tumor of apocrine glands. It usually presents as an asymptomatic flesh-colored nodule in the anogenital area of women.[1] A 32-year-old female patient presented with an asymptomatic nodule of 4 months duration in the vulva.

What causes poroma?

A poroma is a relatively rare benign adnexal neoplasm that originates from the intra-epidermal portion of the sweat gland duct (the acrosyringium). It is thought to arise from the eccrine sweat gland, but apocrine features may be seen.

How is eccrine poroma treated?

Excision is typically the treatment of choice, but cryosurgery has also been used successfully [9]. Jo et al. [10] reported a case of imiquimod 5% cream to treat a poroma, resulting in clearance within 4 weeks.

Is eccrine poroma cancerous?

Eccrine porocarcinoma is a rare malignancy of the eccrine sweat gland. It is usually found frequently on the lower extremities, and it affects both sexes equally usually in the sixth to seventh decade.

What causes Hidradenoma Papilliferum?

Hidradenoma papilliferum, also called papillary hidradenoma, is benign tumour arising from apocrine glands (see sweat gland lesions). The lesion is a small solitary dermal or subcutaneous nodule, most commonly on the vulva.

What causes papillary Hidradenoma?

Papillary hidradenoma of the vulva is a rare, benign neoplasm arising from apocrine sweat glands of the skin. Frequently, this lesion has been mistaken for carcinoma. The treatment of choice is local excision. The prognosis for patients with this tumor is excellent.

What is the concept ID for nodular hidradenoma?

Nodular hidradenoma (Concept Id: C0206671) A benign epithelial neoplasm arising from the sweat glands. It presents as a nodular lesion usually in the scalp, trunk, and proximal extremities. It is characterized by a nodular growth pattern. Complete excision is curative. Nodular hidradenoma MedGen UID: 104915 •Concept ID: C0206671

What kind of nodule is a eccrine hidradenoma?

Eccrine hidradenoma, also known as clear cell hidradenoma, nodular hidradenoma, or solid-cystic hidradenoma, generally presents as a solitary dermal nodule without any particular age or site distribution.

Can a nodular hidradenoma be misdiagnosed as breast cancer?

Nodular hidradenomas occurring in breast tissue are extremely rare and can be misdiagnosed as primary breast carcinoma by physicians and pathologists. Herein, we describe a case of nodular hidradenoma, occurring in the breast tissue of a 20-year-old Hispanic woman, which clinically mimicked breast cancer.

Is there a cure for the skin tumor hidradenoma?

Hidradenoma is nearly always benign and treatment is local excision. A related sweat gland-derived lesion, syringocystadenoma papilliferum, occurs mainly on the face and scalp, but a few lesions have been reported on the vulva. View chapter Purchase book Tumors of the Skin