[Primary retroperitoneal tumors. Review of 34 cases]. / Tumores retroperitoneales primarios. Revisión de 34 casos.

Thirty four cases of primary retroperitoneal tumors treated in our hospital during a period of thirteen years are presented. The predominant clinical picture consisted of abdominal pain (57%) and paraneoplasic syndrome (42.8%) with palpable abdominal mass in 79.4% of patients. We highlight the diagnostic value of TAC and ultrasound in these lesions. Surgical treatment was performed in 33 patients, 19 patients underwent radical resection, 3 partial resection and a biopsy was performed in 12 patients. The relapse index after radical surgery was 68.4%. Chemotherapy and/or radiotherapy was given to 70.5% of the patients. The five year survival for solid tumors was 10%.

[Primary tumors of the small intestine]. / Tumores primarios del intestino delgado.

We made a retrospective analysis of 43 cases of primary tumor of the small intestine, 28 benign and 15 malignant, diagnosed and treated in our hospital over a period of 18 years. A preoperative diagnosis was reached in 13 cases (30%), while in 37.2% the tumor was a casual finding during operation by other methods. The remaining 32.5% debuted as acute abdomen and were an emergency surgical indication. Simple tumoral resection was practiced in 19 cases (44.1%) of benign tumor, intestinal resection with end-to-end anastomosis in 22 cases (51%) and only biopsy in two cases (4.6%). Coadjuvant chemotherapy was given to five patients (11.5%) and radiotherapy to one (2.3%). The one-year survival for malignant tumors was 73%, and only 18% (2 cases) survived more than 5 years after the operation).