Enteric intussusception due to metastatic intestinal tumors

Area of Science:

• Gastroenterology
• Surgical Oncology

Background:

• Enteroenteric intussusception secondary to metastatic tumors is an exceptionally rare clinical entity.
• Preoperative diagnosis is challenging due to the condition's rarity and subtle clinical manifestations.

Observation:

• Two cases of metastatic tumors causing enteroenteric intussusception are presented.
• Both patients had a history of advanced malignancy and presented with melena as the primary symptom.
• Metastatic liposarcoma and metastatic melanoma were identified as the causative agents in the reported cases.

Findings:

• Computed tomographic scans and small bowel series aided in the initial diagnosis.
• Laparotomy and subsequent pathological examination confirmed the intussusception and its metastatic origin.
• Both patients had extensive histories of malignant disease, requiring multiple surgical interventions for metastatic lesions.

Implications:

• This rare condition should be included in the differential diagnosis for patients with a history of recurrent tumors presenting with melena.
• Increased awareness can potentially lead to earlier diagnosis and improved patient outcomes.
• Further research into the mechanisms and diagnostic strategies for metastatic intussusception is warranted.