Dermatology Made Easy is based on the most popular topics from DermNet NZ's vast array of material. The book combines the essential focus of the ‘Made Easy’ book series with the authority and knowledge base of DermNet NZ's unparalleled resources.
Author: Assoc Prof Patrick Emanuel, Dermatopathologist, Auckland, New Zealand, 2014.
Apocrine mixed tumour is also known as apocrine chondroid syringoma. These lesions present as non-descript dermal nodules which grow slowly. They most often arise on the skin of the head and neck.
Apocrine mixed tumours form a well circumscribed dermal mass. These distinctive tumours are composed of both a mesenchymal component which is usually chondroid, and an epithelial component (figure 1). The cartilage is mature, with bland chondrocytes and a silver/grey matrix (figure 2). The epithelium is bland, and consists in most areas of two cell layers: a myoepithelial layer and a lining luminal layer (figure 3).
None are generally needed.
Malignant apocrine mixed tumour: Marked atypia, numerous mitoses and lymphovascular space invasion indicate malignant transformation (fortunately a rare event). Rare cases of bland appearing apocine mixed tumour have metastasized so some authorities advocate complete surgical excision of all tumours
Eccrine mixed tumour: These are composed of quite regularly spaced small glands lined by a thin epithelium set in a fibromucinous stroma Pleomorphic adenoma: These salivary gland tumours are usually morphologically identical. The location in the parotid gland or minor salivary gland allows distinction
© 2018 DermNet New Zealand Trust.
DermNet NZ does not provide an online consultation service. If you have any concerns with your skin or its treatment, see a dermatologist for advice.