Pre- and peri-operative characteristics, complications and outcomes of patients with biochemically silent pheochromocytomas; a case series.

Purpose: Pheochromocytomas are rare tumors and biochemically silent ones with normal catecholamine levels are even rarer. Up to date, biochemically inactive pheochromocytomas are poorly investigated. We aimed to systematically assess the pre- and peri-operative characteristics and the outcomes of patients with these tumors who had been treated and followed-up in 2 tertiary centers.

Enhanced performance of a modified diagnostic test of primary aldosteronism in patients with adrenal adenomas.

Objective: Primary aldosteronism (PA) is the commonest cause of endocrine hypertension ranging from 4.6 to 16.6% according to the diagnostic tests employed.

Surgical treatment outcome of primary aldosteronism assessed using new modified diagnostic tests.

Purpose: Primary aldosteronism (PA) is the most frequent type of endocrine hypertension. In our previous studies, we introduced two modified diagnostic tests for PA, the post-dexamethasone saline infusion test (DSIT) and the overnight dexamethasone, captopril, and valsartan test (DCVT). In this study, we aimed to validate both tests in respect to the biochemical and clinical response of a cohort of hypertensive patients in pre- and post-surgical setting.

Differentiation and prognostic markers in ampullary cancer: Role of p53, MDM2, CDX2, mucins and cytokeratins.

Introduction: Subclassification of ampullary adenocarcinomas into intestinal and pancreatobiliary type has prognostic and therapeutic implications. Immunohistochemical staining against specific biomarkers has been proven to be a useful adjunct in determining the exact histotype. Furthermore the immunohistochemical profile is suggestive of the molecular pathogenic mechanisms through which the tumor evolved.

Differential Expression of β-Catenin, EGFR, CK7, CK20, MUC1, MUC2, and CDX2 in Intestinal and Pancreatobiliary-Type Ampullary Carcinomas.

Introduction: The purpose of this study was to associate immunohistochemical expression of β-catenin, EGFR, CK7, CK20, MUC1, MUC2, and CDX2 in ampullary adenocarcinomas with the type of differentiation and prognosis.

Methods: Forty-seven patients with ampullary adenocarcinoma who underwent pancreatoduodenectomy with curative intent from 1997 to 2014 were included in this study. Nine patients with perioperative death were included in the association analysis but excluded from survival analysis.

Laparoscopic surgery for pancreatic insulinomas: an update.

Insulinomas are the most common functioning neuroendocrine tumors of the pancreas, occurring in almost 1-4 per 1 million persons each year. In contrast to other pancreatic neuroendocrine tumors, they are usually benign and solitary at the time of diagnosis. Due to their benign nature, surgical excision is the treatment of choice, with excellent long-term results.

Neoadjuvant therapy for advanced pancreatic neuroendocrine tumors: an emerging treatment modality?

Objective: Complete surgical resection is the only potentially curative treatment of localized pancreatic neuroendocrine tumors. Unfortunately, a significant proportion of these patients present with unresectable locally advanced tumors or massive metastatic disease. Recently, a new therapeutic approach for this subset of patients has emerged consisting of neoadjuvant therapy followed by surgical exploration in responders.

Surgical treatment of potentially primary malignant adrenal tumors: an unresolved issue.

Although the great majority of incidentalomas are adrenocortical adenomas, a number of them, depending on the size and radiological characteristics of the lesions, will turn out to be carcinomas. These tumors may present as suspicious on initial evaluation and potentially malignant or malignant on histology. Adrenocortical carcinoma is a rare and aggressive malignancy with evolving diagnostic and therapeutic approaches.

Subclinical Cushing's syndrome: current concepts and trends.

Clinically inapparent adrenal masses which are incidentally detected have become a common problem in everyday practice. Approximately 5-20% of adrenal incidentalomas present subclinical cortisol hypersecretion which is characterized by subtle alterations of the hypothalamic-pituitary-adrenal axis due to adrenal autonomy. This disorder has been described as subclinical Cushing's syndrome, since there is no typical clinical phenotype.

Interleukins as markers of inflammation in malignant and benign thyroid disease.

Background: Thyroid disorders, including thyroid cancer and autoimmune thyroid diseases, have been closely associated with inflammation.

Objective: This study aims to investigate the role of inflammation in thyroid disease by assessing serum cytokine levels in patients with malignant and benign thyroid conditions.

Methods: Serum levels of ten interleukins (IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12 and IL-13) were quantitatively determined in 20 patients with thyroid cancer, 38 patients with benign thyroid disease and 50 healthy controls by multiplex technology.

Laparoscopic adrenalectomy in patients with subclinical Cushing syndrome.

Background: Subclinical Cushing syndrome in patients with adrenal incidentalomas has been associated with an increased prevalence of the metabolic syndrome and cardiovascular risk. The management of these patients, be it conservative or surgical, is still debated, but there is accumulating evidence that surgery is best and that laparoscopic adrenalectomy, when possible, is the most preferred procedure. Here we present the short- and long-term results of laparoscopic adrenalectomy for subclinical Cushing syndrome and determine the effect of this procedure on components of the metabolic syndrome.

Laparoscopic resection of pheochromocytomas with delayed vein ligation.

Objective: Laparoscopic adrenalectomy has been established as the surgical procedure of choice for benign adrenal diseases. Laparoscopic adrenalectomy for pheochromocytoma has been the subject of debate, due to potential systemic consequences of pneumoperitoneum in patients with catecholamine-secreting tumors and a perceived increased risk of malignancy for large-sized tumors. In this study we present our experience for laparoscopic resection of pheochromocytomas, and evaluate the safety of delayed adrenal vein ligation.

Laparoscopic resection of large adrenal tumors.

Background: Laparoscopic adrenalectomy has rapidly replaced open adrenalectomy as the procedure of choice for benign adrenal tumors. It still remains to be clarified whether the laparoscopic resection of large (≥ 8 cm) or potentially malignant tumors is appropriate or not due to technical difficulties and concern about local recurrence. The aim of this study was to evaluate the short- and long-term outcome of 174 consecutive laparoscopic and open adrenalectomies performed in our surgical unit.

Cholangiocarcinoma: principles and current trends.

Background: Cholangiocarcinoma (CCA) is a lethal cancer of the biliary epithelium, originating from the liver (intrahepatic), at the confluence of the right and left hepatic ducts (hilar) or in the extrahepatic bile ducts. It is a rare malignancy associated with poor prognosis.

Data Sources: We searched the PubMed/MEDLINE database for relevant articles published from 1989 to 2008.

Multiplex RT-PCR-based detections of CEA, CK20 and EGFR in colorectal cancer patients.

Aim: To develop a multiplex reverse transcription polymerase chain reaction (RT-PCR) method detecting circulating tumor cells in the peripheral blood of colorectal cancer (CRC) patients.

Methods: Peripheral blood samples were collected from 88 CRC patients and 40 healthy individuals from the blood donors' clinic and subsequently analyzed by multiplex RT-RCR for the expression of carcinoembryonic antigen (CEA), cytokeratin 20 (CK20) and epidermal growth factor receptor (EGFR) mRNA. The analysis involved determining the detection rates of CEA, CK20 and EGFR transcripts vs disease stage and overall survival.

Swordfish bill injury involving abdomen and vertebral column: case report and review.

Background: Penetrating injuries of the abdomen and spinal canal that involve organic material of animal origin are extremely rare and derive from domestic and wild animal attacks or fish attacks.

Case Presentation: In this case report we present the unique, as far as the literature is concerned, unprovoked woman's injury to the abdomen by a swordfish. There are only four cases of swordfish attacks on humans in the literature - one resulted to thoracic trauma, two to head trauma and one to knee trauma, one of which was fatal - none of which were unprovoked.

Primary pigmented nodular adrenocortical disease presenting with a unilateral adrenocortical nodule treated with bilateral laparoscopic adrenalectomy: a case report.

Introduction: Primary pigmented nodular adrenocortical disease is a rare cause of adrenocorticotropic hormone-independent Cushing's syndrome. We report an uncommon primary pigmented nodular adrenocortical disease case presenting with a unilateral adrenocortical nodule and provide a brief overview of the existing literature.

Case Presentation: A 27-year-old Caucasian woman was admitted to our Department with adrenocorticotropic hormone-independent Cushing's syndrome.

Pancreatic insulinoma: current issues and trends.

Background: Although insulinomas are very rare tumors, they are the most common pancreatic neuroendocrine neoplasms. The incidence in general population is 1-4 per 1,000,000 yearly but the incidence is higher in autopsy studies. The malignancy of insulinomas is difficult to be predicted on the basis of their histological features, and the current WHO classification has been re-evaluated.

Pheochromocytoma associated with neurofibromatosis type 1: concepts and current trends.

Background: Neurofibromatosis Type 1(NF-1) has autosomal dominant inheritance with complete penetrance, variable expression and a high rate of new mutation. Pheochromocytoma occurs in 0.1%-5.

Circulating tumor cells in colorectal cancer: detection methods and clinical significance.

Colorectal cancer is one of the most frequently diagnosed malignancies in both men and women. Although curative resection is the major treatment option, approximately half of all patients eventually develop distant metastases. Thus, the need for early detection of occult metastases has led to extensive investigation with regard to the detection of disseminated tumor cells in biological fluids, including peripheral blood or bone marrow of cancer patients.

Solitary fibrous tumor of the liver expressing CD34 and vimentin: a case report.

A case of a successfully treated solitary fibrous tumor (SFT) of the liver is reported. An 82-year-old female presented with left upper abdominal discomfort, a firm mass on palpation, and imaging studies revealed a large tumor, 15 cm in diameter, arising from the left lobe of the liver. A formal left hepatectomy was performed.