Eccrine Carcinoma Clinical Presentation
- Author: Anthony Wong, MD, FAAD; Chief Editor: Dirk M Elston, MD more...
History
- Malignant eccrine tumors generally present as a single, asymptomatic, nondescript cutaneous lesion.
- Eccrine carcinomas grow either slowly over years or rapidly, reaching a size of several centimeters over a few months.
- With disseminated disease, patients may report symptoms related to organ specific metastases.
Physical
- Cutaneous/primary lesion of eccrine carcinoma
- A solitary nodule or plaque on the head or extremities and, less commonly, the trunk is present.
- Occasionally, the lesion may ulcerate.
- A few tumor subtypes do exhibit salient clinical features.
- MAC occurs as an indurated plaque especially in the nasolabial area.
- Mucinous eccrine carcinoma predominantly involves the eyelids and has also been described on the scalp.[7, 8]
- Aggressive digital papillary adenoma/adenocarcinoma typically is seen in males on the digits and adjacent skin.
- Most hidradenocarcinomas occur on the head and neck of older patients.
- Most eccrine porocarcinomas are found on the lower extremities of older adults.
- Disseminated eccrine carcinoma disease
- Nodal and distant metastases may be detected.
- In particular, eccrine porocarcinoma (the most common eccrine cancer subtype) shows a characteristic propensity to produce multiple cutaneous metastatic deposits concomitant with visceral spread.
Causes
An etiologic role for UVR has been suggested for eccrine carcinoma. A case of MAC was reported in the neck of a man who received radiation therapy to the site years earlier. In addition, Abbate et al[4] report that 5 out of 10 patients with MAC gave a prior history of radiation therapy. Chiller et al[9] report a potential etiologic role for UVR as they describe MAC predominantly affecting the left side of the face, corresponding to higher UVR exposures while driving.
Immunosuppression has been known to increase the risk of nonmelanoma skin cancers, particularly squamous cell carcinomas. In a 2003 retrospective review of appendageal tumors in organ transplant recipients, Harwood et al[10] suggest that patients who are immunosuppressed have a propensity to also develop cutaneous appendageal tumors over their immunocompetent counterparts, with increased rates of both benign eccrine tumors and malignant eccrine tumors.
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