INTRODUCTION: The conversion disorder is a form of somatization, which consists in the expression of mental phenomena and physical symptoms; in it, the seizures are configured as a partial or complete loss of functions. Thus, the individual unconsciously mimics an epileptic seizure, without the neuroelectric components of epilepsy, corresponding, however, to a difficult differential diagnosis. Therefore, many patients encounter difficulties in diagnosis and therapeutic approach. In this context, the personcentered clinical method (PCCM) is an ally of clinical management because it analyzes not only the disease, but the experience in front of it, understanding the person as a whole, to elaborate the joint management of problems, associated with the doctor-patient bond. REPORT: S., a 12-year-old male, arrives at the Unidade Básica de Saúde (UBS) of Sinop-MT accompanied by his mother, who reports that her son had "two convulsive crises", which included fainting and temporary memory loss. During the crises, the patient was responsive and had sphincter control, communicating in a disorganized manner; after the crisis he did not recognize his mother. After each episode, S. was taken to the Emergency Care Unit, where serious causes were ruled out. Upon discharge, S. was referred for follow-up at the UBS. In this context, we tried to hear the opinions of those present, individually and together, about each event and their behavior in face of them. Alone, S. mentioned that he did not have a good relationship with his father, who was harsh with all the family members, a fact that triggered intense psychological suffering since early childhood. Thus, the family and community health team considered that the problem could have its origin in a family structure shaken by the father figure and, with the normality of the complementary exams, referred S. to psychotherapy at the Núcleo de Apoio à Saúde da Família (NASF). With follow-up, S. showed good evolution, with no recurrence of the conversive crises or other related clinical manifestations. CONCLUSION: The exposed case ratifies the importance of having the institutional apparatus to support the practice of matriciamento, because it allows the MCCP to be properly and effectively executed, which results not only in a good doctor-patient relationship, but also its legitimacy by respecting the integrality of the individual during follow-up. The case in question is not about centering the disease as the sole determinant of management, but rather the patient himself and the biopsychosocial factors of his surroundings, which was crucial in correctly defining the diagnosis of a psychosomatic condition that was harming the patient.