"Adaptation of the Questionnaire Regarding Patient's Quality of Life With Mastocytosis in the French Language"

The comprehension test will be done through structured interviews in which the principal investigator will ask if the patient has had difficulty understanding the recommendations and questions, will check the interpretation of all items and the understanding of each word by the patient. In case of problems, the investigator will propose and / or test translation alternatives, or will ask the patient to propose alternatives.