La carcinomatosis peritoneal es una forma de diseminación intraabdominal del cáncer de origen gastrointestinal, ginecológico o del propio peritoneo y se diagnostica por la presencia de nódulos tumorales en la superficie peritoneal.

Peritoneal carcinomatosis

It is considered an advanced stage of primary tumors of the peritoneum such as peritoneal mesothelioma or peritoneal pseudomyxoma, or secondary in cases of cancer of ovarian or digestive origin.
All the organs of the abdominal cavity - such as the stomach and intestine - and the abdominal wall are covered by a thin layer of cells, this layer is called the "peritoneum".
Until recently, peritoneal carcinomatosis was considered a terminal stage of the disease. The development of new surgical techniques to achieve a macroscopically complete resection of the disease, known as Peritonectomies, has radically changed the prognosis of these entities. At the end of the surgery phase, treatment is completed with high-temperature intraperitoneal chemotherapy (HIPEC) to enhance the benefit in the fight for better responses.

Peritoneal Carcinomatosis is an advanced or metastatic stage of abdominal cancer.

The most common is peritoneal cancer that originates from cells spread by a primary intra-abdominal tumor. The cells travel to the peritoneum and begin to grow on the peritoneal surface (metastasis).
Almost any primary tumor in the body can cause this disease, but the abdominal organs, such as the colon, stomach, and ovaries, are the most common organs of origin. Typically malignant cells will multiply and form tumor nodules on the peritoneum.