[Clinical observations in cutan mastocytosis].

Introduction: Mastocytosis is a clonal mast cell proliferative disease, divided into cutaneous and systemic forms. The characteristic symptoms are caused by neoplastic mast cell infiltrations in different organs and/or the release of mediators.
Aim: The aim of the authors was to summarize their clinical observations in patients with mastocytosis.
Method: 22 adult patients diagnosed consecutively with mastocytosis were enrolled in the study. Skin and bone marrow biopsies were taken to establish the diagnosis and perform c-KIT mutation (D816V) analysis.
Results: One of the 22 patients had teleangiectasia macularis eruptiva perstans, while 20/22 patients had urticaria pigmentosa. All patients had cutaneous lesions. In 12 patients iliac crest biopsy was performed and 9 of them had bone marrow involvement, classified as indolent systemic mastocytosis. The c-kit mutation D816V was found in one subject both in skin and bone marrow samples. The patients were treated with antihistamine, PUVA, interferon-α or imatinib.
Conclusions: The authors draw attention to this rare disease in order to help recognition of relevant signs and symptoms and establish an early diagnosis.