abstract background: abdominal tumors are still a diagnostic problem in children. this study was conducted to assess the presentation and types of childhood intra abdominal tumors in children in shiraz. materials and methods: participants of this historical cohort study consisted of 298 children aged between 1.5 months to 15 years old who were diagnosed with abdominal mass between march 2003 an...

Malignant peritoneal mesothelioma is a rare, aggressive neoplasm with a poor prognosis. It simulates a spectrum of conditions and thus poses great difficulty in diagnosis and management. We report a case of malignant peritoneal mesotheolima in a young female whose abdominal CT showed a complex lesion occupying the entire abdominal cavity. This lesion mimicked an ovarian malignancy with peritone...

BACKGROUND Disseminated peritoneal adenomucinosis (DPAM) patients often have a history of appendectomy with identification of an incidental mucinous neoplasm (low-grade appendiceal mucinous neoplasm (LAMN)). The rate of developing DPAM is not well established. METHODS Twenty-two patients with incidental LAMN were identified and monitored with cancer markers and CT every 4-6 months. Laparoscop...

The primitive neuroectodermal tumors (PNETs) produce metastases in the basicranial axis. Extracranial metastases are infrequent and occur by dissemination through the cerebrospinal fluid (CSP). Sixty two cases of peritoneal carcinomatosis have been reported to date as due to a ventriculo-peritoneal shunt (VPS), four of them by pineoblastoma. We present the case of a pineoblastoma showing this e...

Burkitt lymphoma is a fast-growing high grade B-cell neoplasm that rarely affects adults. Three clinical variants are described in the World Health Organization classification: endemic, sporadic, and immunodeficiency-associated. The non-endemic form typically presents as an abdominal mass in children. Symptoms usually occur due to mass effect or direct intestinal involvement. We describe a very...

OPINION STATEMENT Malignant peritoneal mesothelioma (MPM) is an aggressive neoplasm that rapidly spreads within the confines of the abdominal cavity to involve most accessible peritoneal and omental surfaces. Current treatment options are unsatisfactory, and new approaches are needed. Recent publications have reported improved survival with an intensive loco-regional treatment strategy includin...

INTRODUCTION Primary myelofibrosis (MF) is a myeloproliferative neoplasm that results in debilitating constitutional symptoms, splenomegaly, and cytopenias. In patients with symptomatic splenomegaly, splenectomy remains a viable treatment option for MF patients with medically refractory symptomatic splenomegaly that precludes the use of ruxolitinib. CASE PRESENTATION We present the clinical c...

Background: Abdominal tumors are still a diagnostic problem in children. This study was conducted to assess the presentation and types of childhood intra abdominal tumors in children in Shiraz. Materials and Methods: Participants of this historical cohort study consisted of 298 children aged between 1.5 months to 15 years old who were diagnosed with abdominal mass between March 2003 and March 2...

Pseudomyxoma peritonei is a relatively rare and poorly understood condition in which mucus accumulates within the peritoneal cavity. The presence of cells in the mucin, either inflammatory or neoplastic, distinguishes it from simple acellular mucus ascites caused by mucinous spillage. There is widespread seeding of the peritoneal and omental surfaces with a heavy cancerous glaze. This is princi...

Abstract Peritoneum is a serosal membrane lining the solid viscera and hollow viscus of abdomen made single layer mesothelial cells. The most common primaries that spread to peritoneum include gastrointestinal, ovarian, colorectal, peritoneal metastases can be seen at some point during disease course in 15 43%, 60 70% 20% patients, respectively. Other malignancies involving such as primary carc...