Alopecia neoplastica

Alopecia neoplastica may present as a scarring alopecia, appearing anywhere on the scalp, and it has been described with cutaneous metastasis from breast, gastric, lung, renal and pancreatic carcinomas.

Signs and symptoms
Alopecia neoplastica usually presents as a nodule, plaque, patch, or ulceration on the scalp.

Causes
Alopecia neoplastica can come from tumors that are malignant or benign. The most common cancer linked to alopecia neoplastica was found to be GI cancer, followed by breast cancer.

Epidemiology
According to one study, 53.7% of patients with alopecia neoplastica were women, compared to 46.3% of men. 59 was the median age at onset.