Publications by authors named "Gustavo G Fernandez Ranvier"
Minimally Invasive Techniques for Resection of Pancreatic Neuroendocrine Tumors.
Surg Oncol Clin N Am
January 2016
Surgical resection remains the treatment of choice for primary pancreatic neuroendocrine tumors (PNETs), because it is associated with increased survival. Minimally invasive procedures are a safe modality for the surgical treatment of PNETs. In malignant PNETs, laparoscopy is not associated with a compromise in terms of oncologic resection, and provides the benefits of decreased postoperative pain, better cosmetic results, shorter hospital stay, and a shorter postoperative recovery period.
View Article and Find Full Text PDFAdrenocortical carcinoma (ACC) is rare but one of the most malignant endocrine tumors. This article reviews and summarizes the current knowledge about the treatment of ACC. The epidemiology and molecular events involved in the pathogenesis of ACC are briefly outlined.
View Article and Find Full Text PDFArticle Synopsis
- Bullet embolism is a rare but serious problem that can happen when a bullet gets stuck in a blood vessel after an injury, causing big health risks.
- In one case, a patient had a bullet travel from their leg vein to their lung artery, and doctors decided to just watch him instead of doing surgery.
- When someone has injuries with more entry wounds than exit wounds, doctors should check for bullet embolism; if they're not showing any symptoms, it might be safe to just monitor them.
Background: It is frequently difficult to establish histologically whether a parathyroid tumor is a parathyroid carcinoma, parathyromatosis, or an atypical adenoma. The authors asked whether these tumors have a distinctive molecular profile, whether benign tumors could be distinguished from malignant tumors, and whether parathyromatosis is a low-grade parathyroid carcinoma or is benign tissue that can invade other organs.
Methods: Samples of parathyroid carcinoma, atypical adenoma, parathyromatosis, parathyroid adenoma, and hyperplasia were obtained for tissue microarray studies.
Hypothesis: The gene expression profiles of benign and malignant adrenocortical tumors are different.
Design: Genomewide gene expression profiling and validation.
Setting: Tertiary medical center.
Background: The most common genetic change observed in adrenocortical carcinoma is loss of heterozygozity on chromosome 11q13. As genes on this chromosome may be important in the pathogenesis of adrenocortical carcinoma, we compared their expression profile between benign and malignant adrenocortical tissue.
Methods: We used the Affymetrix GeneChip (U133 plus 2.
Objective: To report a case of nonfunctioning parathyroid carcinoma that was incidentally found during a thyroidectomy for multinodular goiter.
Methods: We present a case report, detailing the clinical course and histologic findings in a patient with a nonfunctional parathyroid carcinoma. The related literature is also reviewed.
Background: Parathyroid carcinoma, atypical parathyroid adenoma, and parathyromatosis can be differentiated relatively easily from typical parathyroid adenomas, but distinguishing them from each other is more difficult.
Methods: A retrospective study of 28 consecutive patients with parathyroid carcinoma, 7 patients with atypical parathyroid adenoma, and 13 patients with parathyromatosis who were treated at the University of California at San Francisco Medical Center between 1966 and 2005 was performed. Patient demographics and clinical characteristics, indication for surgery, intraoperative findings, histopathologic characteristics, disease recurrence or persistence, site of invasion/metastases, and survival were compared in the 3 groups.