Zosteriform metastasis

Zosteriform Metastasis

Zosteriform metastasis refers to a rare pattern of skin metastasis that mimics the distribution of herpes zoster lesions. It is characterized by skin lesions that follow a dermatome, which is a specific area of the skin that is supplied by a single spinal nerve.

Etiology

Zosteriform metastasis is usually associated with underlying malignancies, most commonly breast cancer and lung cancer. Other malignancies that can lead to zosteriform metastasis include melanoma, colorectal cancer, and ovarian cancer.

Clinical Presentation

Patients with zosteriform metastasis typically present with painful, erythematous, or violaceous papules, plaques, or nodules that follow a dermatomal distribution. The lesions may be mistaken for herpes zoster, but unlike herpes zoster, they do not resolve and tend to progressively worsen.

Diagnosis

The diagnosis of zosteriform metastasis is often delayed due to its rarity and its resemblance to herpes zoster. It is confirmed by skin biopsy, which shows the presence of malignant cells.

Treatment

Treatment of zosteriform metastasis involves addressing the underlying malignancy. This may include chemotherapy, radiation therapy, or surgery. Pain management is also an important aspect of treatment due to the often painful nature of the skin lesions.

Prognosis

The prognosis of zosteriform metastasis is generally poor, as it is often a sign of advanced or disseminated malignancy. However, the prognosis can vary depending on the type and stage of the underlying cancer.

See Also

• Cutaneous metastasis
• Herpes zoster
• Dermatome (anatomy)