Abstract
The Evolving Role of 18F-FDG PET/CT in Assessment of Primary and Secondary Peritoneal Malignancies
Highlights
The peritoneum is the serous membranous lining of the abdominal cavity and organs
Evaluation of peritoneal malignancies with 18F-FDG PET/CT is rewarding and our study demonstrates that 18F-FDG PET/CT adds substantially to CT scanning alone in the detection of peritoneal malignancies
Male to female ratio was 2:3; presenting as following: 1) 47 cases referred for PET/CT scan with pathologically proven primary tumor whether for staging refinement, therapy response assessment or regular follow-up
Summary
The peritoneum is the serous membranous lining of the abdominal cavity and organs. A diverse group of malignancies are known to involve the peritoneum. Peritoneal malignancy may either be primary or secondary; the latter is referred to as peritoneal carcinomatosis. Secondary peritoneal malignancies are the commonest group of peritoneal malignancies. The peritoneum is the largest serous membrane in the body and the one with the most complex structure. The omentum is a double-layered extension of the peritoneum that connects the stomach to adjacent organs. Primary peritoneal tumors are much less common than secondary peritoneal tumors. The most common primary peritoneal tumor is mesothelioma. Malignant peritoneal mesothelioma is a rare tumor with a variable appearance at CT [1]. Secondary peritoneal malignances are by far much more common than primary peritoneal tumors. Distant metastases to the peritoneum from breast and lung carcinoma are not uncommon [2]
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