Tumor neuroendócrino pancreático em paciente jovem: aspectos de imagem

Abstract

Pancreatic neuroendocrine tumors (PNETs) are a group of rare neoplasms with a wide range of clinical, histopathological and imaging characteristics. These tumors originate from precursor cells with neuroendocrine differentiation in the pancreatic ductal epithelium. They can occur in isolation or in the context of hereditary endocrinopathies. P-NETs are classified as functioning, which usually manifest early due to hormone production, and non-functioning, which are usually diagnosed in more advanced stages due to symptoms resulting from the mass effect. Imaging assessment is paramount, providing important diagnostic and prognostic data. We will present the case of a 17-year-old male patient, with no relevant previous pathological history, who was seen in the emergency department with abdominal pain, weight loss of 20 kg in one year and a palpable mass in the left hypochondrium on physical examination. Computed tomography (CT) and magnetic resonance imaging (MRI) revealed a large pancreatic lesion, the histopathological diagnosis of which was confirmed by percutaneous biopsy.