Laparoscopic removal of twisted necrotic pedunculate vascular malformation of the ascending colon in a 14-year-old boy

Lymphatic malformations are benign neoplasms that form as a result of impaired formation of embryonic lymphatic sacs during embryogenesis. Lymphangiomas and lymphgemangiomas (visceral forms) rarely develop in the intra-abdomen, such localization does not exceed 8–15% of all observed lymphangiomas in children. Among the visceral forms are more common the forms that involve intestines, mesentery, spleen, omentum, liver in the pathological process, less often - the lymphatic vessels and lymph nodes of the mediastinum, and retroperitoneal tissue. The clinical presentation of lymphatic malformations is multivaried and depends on their localization, the patient age, and the development of complications. In case of complications, the clinic manifestation of “acute abdomen” requires emergency surgical intervention, during which the diagnosis and scope of surgical treatment are specified. a 14-year-old boy was admitted to the department of infectious diseases with complaints of fever, weakness, abdominal pain, sore throat and loose stools. Previously, the patient had complaints of abdominal pain for a year; ultrasound examination of the abdominal cavity was performed repeatedly, in which no pathological changes were detected. The patient underwent laparoscopic appendectomy; During the revision of the abdominal cavity, a space-occupying lesion emerging from the mesentery of the ascending colon and twisted around the vascular pedicle by 3 turns was revealed. Education removed. Histological and immunohistochemical examination confirmed the diagnosis of lymphatic-venous malformation. No signs of malignancy of lymphatic malformations are described in the literature. However, though lymphatic malformations are benign in nature, they tend to have an infiltrative growth pattern, often relapse, and sometimes become infected. The available literature doesn’t provide a proper description and analysis of the results of treatment of intra-abdominal lymphatic malformations using endovideo technologies. Transabdominal access provides the best exposure of the complete surgical field, freedom of movement and clarity of anatomical landmarks. The main advantages over open abdominal surgery are minimal trauma to the anterior abdominal wall and rapid rehabilitation of patients.

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