Mastocytosis, plaque form
Mastocytosis is a disease with an unknown etiology (causes), which is not so rare. In nature, there are two forms of mastocytosis - malignant and benign. The plaque-like form is most common, and this is normal, because such a disease is a type of benign. Benign mastocytosis can be considered as a symptom of a systemic disease or a hereditary disease, and malignant as a form of leukemia.
A benign tumor, or most often one that does not provoke cancer of the lymph nodes, also goes unnoticed