RESUMO
A clear understanding of the normal anatomy and pattern of disease spread is important in evaluating many retroperitoneal disorders. Primary retroperitoneal tumors are uncommon, accounting for 0.1%-0.2% of all malignancies in the body; 80%-90% of all primary retroperitoneal tumors are malignant. The primary retroperitoneal neoplasms can be divided into solid or cystic masses. The solid neoplasms can be classified according to their tissue of origin into 3 main categories: mesodermal tumors, neurogenic tumors, and extragonadal germ cell tumors. Computed tomography and magnetic resonance imaging play a vital role in the localization, characterization, evaluation of the extent of local invasion, assessment of metastases, and determination of treatment response for these tumors. The diagnosis of a primary retroperitoneal malignancy is often challenging owing to overlap of imaging findings. A definitive diagnosis can be established only at histopathologic analysis. However, knowledge of the important tumor characteristics, growth pattern, and vascularity can assist in narrowing the differential diagnosis.
Assuntos
Imageamento por Ressonância Magnética , Tumor Mesodérmico Misto/patologia , Neoplasias Embrionárias de Células Germinativas/patologia , Neoplasias Retroperitoneais/patologia , Tomografia Computadorizada por Raios X , Feminino , Humanos , Masculino , Tumor Mesodérmico Misto/diagnóstico por imagem , Invasividade Neoplásica , Neoplasias Embrionárias de Células Germinativas/diagnóstico por imagem , Neoplasias Retroperitoneais/diagnóstico por imagem , Espaço Retroperitoneal/patologia , Carga TumoralRESUMO
Early diagnosis of malignant mixed mesodermal tumors of the ovary is very difficult because of the rarity and the insidious onset. The purpose of this report is to review the magnetic resonance imaging features of an ovarian malignant mixed mesodermal tumor, which occurred in a 52-year-old woman, aiding in the differential diagnosis.
Assuntos
Tumor Mesodérmico Misto/diagnóstico , Neoplasias Ovarianas/diagnóstico , Quimioterapia Adjuvante , Feminino , Humanos , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Tumor Mesodérmico Misto/diagnóstico por imagem , Tumor Mesodérmico Misto/cirurgia , Neoplasias Ovarianas/diagnóstico por imagem , Neoplasias Ovarianas/cirurgia , UltrassonografiaRESUMO
Preoperative diagnosis of tubal carcinoma is difficult and a diagnosis cannot usually be established until the time of operation. However, since prognosis is strictly related to the stage of the neoplasm, it is very important to be familiar with the clinical and imaging characteristics of primary fallopian tube carcinoma in order to make an early and accurate diagnosis. This report presents the ultrasonographic features of three cases of fallopian tube carcinoma and reviews the literature on the subject.
