Adnexal tumor

Cutaneous attached tumors are numerous types of benign and evil one tumors arising from:

• Hair follicles
• Sebaceous glands
• Eccrine and apocrine sweat glands

Adnexal tumors can be sporadic, but are sometimes due to syndromes, such as:

• Birt-Hogg-Dube
• Brooke-Spiegler syndrome
• Cowden's disease

• Torre-Muir syndrome (Lynch syndrome).

They are generally diagnosed by biopsy findings, rather than clinically. His histological features are combined with special immunohistochemistry Stains for a pathological diagnosis.

Benign eccrine and apocrine tumors include:

• Syringoma
• Poroma
• Cylindroma and spiradenoma
• Mixed cutaneous tumor
• Syringofibroadenoma
• Syringocystadenoma papilliferum
• Hidradenoma papilliferum
• Hidradenoma
• Tubular/papillary adenoma, including papillary cystadenoma.

Malignant eccrine and apocrine tumors include:

• Porocarcinoma
• Adenoid cystic carcinoma
• Mucinous carcinoma
• Microcystic adnexal carcinoma
• Digital papillary adenocarcinoma

• Extramammary Paget's disease.

Benign follicular Tumors include:

• Trichoblastoma and trichoepithelioma
• Trichoadenoma
• Trichofolliculoma
• Trichilemmoma
• Trichodiscoma and fibrofolliculoma
• Tumor of the follicle infundibulum
• Panfolliculoma
• Pilomatricoma
• Proliferating trichilemmal tumor

Malignant follicular tumors include:

• Trichoblastic carcinoma
• Trichilemmal carcinoma
• Pilomatrix (matrical) carcinoma.

Sebaceous tumors include:

• Sebaceous hyperplasia
• Sebaceous adenoma and sebaceoma

• Sebaceous carcinoma.