POSITIVE EXPRESSION OF NEDD9 IN HEAD AND NECK CANCER IS RELATED TO BETTER SURVIVAL PERIOD

The aim was to determine immunohistochemical expression of NEDD9 protein in head and neck squamous cell carcinoma (HNSCC) and the possible relation of its expression with primary tumor size (T), regional lymph node status (N), stage of disease (TNM) and survival period. A total of 131 patients with primary tumor localization in the area of oropharynx, hypopharynx and larynx, monitored for at least 5 years after initial surgical treatment were analyzed. The study included 128 male and three female patients, median age 62.0 (range 53.0-68.0) years. Of these, 105 (95%) patients showed positive NEDD9 expressed by dyed cytoplasm. There were no significant differences in NEDD9 expression according to TNM tumor status. Patients with positive NEDD9 expression had a significantly higher median (IQR) survival time 51.0 (15.0-60.0) months as compared to 22.5 (9.0-55.0) months in patients with negative NEDD9 expression (p=0.048). NEDD9 negative expression, controlled for the influence of other variables included in the Cox’s proportional hazards model, had a significant hazard ratio (HR) of 2.10 (95% CI: 1.23-3.58; p=0.006). The results of our study showed that NEDD9 expression might be an independent prognostic marker in patients with HNSCC regarding data on overall survival and mortality.

The Role of the Acute Octreotide Suppression Test in Detecting Patients with Neuroendocrine Neoplasms

BACKGROUND

Serum chromogranin A (CgA) is routinely used as a biomarker in patients with neuroendocrine neoplasms (NENs). Several conditions and comorbidities may be associated with falsely elevated CgA, often leading to extensive diagnostic evaluation, which may be costly and harmful. The aim of this study was to analyze the effectiveness of the acute octreotide suppression test (AOST) in differentiating falsely elevated serum CgA.

METHODS

Our prospective study enrolled 45 patients from two different patient cohorts: (1) 29 patients with suspicion or presence of NENs (extensive workup and subsequent biopsy confirmed 16 NENs); (2) 16 consecutive patients admitted via the Emergency Department without NENs (non-NENs). AOST was performed after an overnight fast. Baseline CgA was measured, after which 0.25 mg of octreotide was administered subcutaneously. CgA was measured 3 and 6 h after administration.

RESULTS

Baseline CgA levels were similar in NENs and non-NENs. At the end of the AOST, CgA decreased by a median of 83.3% (41.0-127.4) in non-NENs and 13.8% (0.0-43.6) in NENs (p < 0.001). In patients with increased baseline CgA, a decrease in CgA at the 6th hour of < 51.3% had 90.0% sensitivity and 88.9% specificity in detecting NENs. In patients with normal baseline serum CgA, a decrease in CgA at the 3rd hour of < 17.6% had 83.3% sensitivity and 81.8% specificity in detecting patients with NENs. The diagnostic accuracy of the AOST in the entire study population was 86.7%.

CONCLUSIONS

AOST is a promising tool to increase the diagnostic accuracy of serum CgA.

ILEAL HERNIATION THROUGH THE FORAMEN OF WINSLOW: OVEREATING AS A RISK FACTOR FOR INTERNAL HERNIATION

Internal hernias have an overall incidence of less than 1% and are difficult to diagnose clinically due to their nonspecific presentation. Most internal hernias present as strangulating closed-loop obstruction and delay in surgical intervention is responsible for a high mortality rate (49%). We present a case of ileal herniation through the foramen of Winslow. A 29-year-old previously healthy female presented with acute onset right upper quadrant pain, abdominal fullness, and nausea. The pain was sudden in onset and began shortly after a dinner party where she consumed larger portions of food. Laboratory investigations revealed mild leukocytosis with left shift. Dual-phase multi-detector computed tomography disclosed herniation of the small bowel into the lesser sac. The patient underwent an emergency median laparotomy that revealed ileal herniation through the foramen of Winslow. Adhesiolysis and manual reduction of the bowel was performed, and the reduced bowel showed only congestive changes. The postoperative recovery was uneventful and the patient was discharged on the third postoperative day. Risk factors for internal herniation still remain unclear, although excessively mobile bowel loops and an enlarged foramen of Winslow have been described. Our case demonstrated that overeating could be an additional risk factor for internal herniation. We describe our clinical and radiology findings, as well as surgical management. Due to the high rates of morbidity and mortality, it is imperative that clinicians be aware of the possible risks factors for internal herniation. Internal hernias should be included in the differential diagnosis of small bowel obstruction so that appropriate steps can be made in the work-up of these patients, followed by timely surgical intervention.

[Epidemiology of invasive breast cancer according to histopathologic and immunohistochemistry prognostic factors]

The aim of this study was to analyze the TNM classification factors of invasive breast cancer that can be affected by the national program for early detection of breast cancer in the Republic of Croatia. The other analyzed factors related to histology and immunohistochemistry have no such impact as they are related to biological behavior and aggressiveness of malignant breast tumors, thus providing useful predictive and prognostic information. The study was performed at Department of Oncologic Surgery, Sestre milosrdnice University Hospital Center, and included 75 patients surgically treated for invasive breast cancer during the period of one month in 2011, mean age 64 +/- 11.36 (range 36-86) years. Most of the patients (68%) with malignant breast disease were diagnosed in a localized stage, which is consistent with the reports from developed European countries. The size of the newly discovered tumors showed continuation of a trend of detecting tumors of ever less size and a lower percentage of pT3 pT4 tumors. This result proved superior to those reported from many European countries. The results of correlation analysis, tumor size, estrogen and progesterone receptor, HER-2 protein, Ki-67, and histologic tumor grade, tumor size did not show significant correlation with any of these parameters. Concordant expression of phenotype (ER+, PR+) receptor pairs and negative HER-2 was recorded in most study patients. The second most frequent group had tumors with so-called 'triple-negative' immunohistochemistry negative phenotype (ER-, PR-, HER-2). In conclusion, the program of early detection of breast cancer in the Republic of Croatia and at the University Hospital for Tumors justifies its existence for revealing malignant breast tumors at an earlier stage of the disease considering the size local stage of newly diagnosed tumors.