Mario Benedetti

Radioguided surgery for gastrinoma: a case report.

Aims and Background Gastrinomas are the most common neuroendocrine tumors of the duodenopancreatic region. Surgical resection is the primary type of radical treatment. Methods and Study Design At the Institute of General, Gastrointestinal and Breast Surgery we treated a patient with a duodenal gastrinoma that was diagnosed and localized by means of selective celiacmesenteric angiography and labeled octreotide scintigraphy. Surgery was performed using a radioguided technique; in this way we easily detected the small tumor and discovered another tracer-uptaking lesion that turned out to be a metastatic lymph node. Results Surgical resection is the ideal treatment for sporadic gastrinoma: it improves quality of life, prolongs survival, and reduces the incidence of metastases, with a modest percentage of complications and practically zero mortality. Meanwhile, medical treatment is being revaluated, particulary in the case of metastatic disease or polyendocrine MEN1 syndrome. A fundamental aspect in the management of gastrinomas is tumor localization. Endoscopic ultrasonography and labeled octreotide scintigraphy (Octreoscan) proved to be more effective than the usual imaging modalities. Intraoperative ultrasonography, gastroscopy for duodenal transillumination and repeated measurement of blood gastrin levels should be performed intraoperatively in the surgical treatment of gastrinomas. Conclusions The clinical application of radioguided surgery for tracer-uptaking endocrine tumors is still controversial. In our case the decision to use this method was influenced by the fear that the patients obesity and the effects of previous surgery could hamper the identification of the small tumor.

A case of bilateral breast cancer and Graves' disease.

We report a case of bilateral breast cancer associated with Graves’ disease characterized by a large goiter and complicated by a severe ophthalmopathy. The hyperthyroidism was treated initially with methimazole and then with thyroidectomy, the ophthalmopathy with intravenous steroids combined with orbital radiotherapy. The breast tumors underwent surgical resection followed by chemotherapy. We describe this case because of the well-known association between breast cancer and thyroid disease, particularly of the autoimmune type, the causes of this being still unclear. Recent literature on this topic is reviewed, discussing the possible role of the Na+-I− symporter and anti-TPO antibodies.