Gastric Adenocarcinoma of Fundic Gland Type with Aggressive Transformation and Lymph Node Metastasis: a Case Report

A 55-year-old man visited our hospital for a detailed examination of a gastric submucosal tumor that was first detected 10 years prior. The tumor continued to grow and had developed a depressed area in its center. A histopathological examination of biopsy specimens revealed gastric adenocarcinoma of the fundic gland type (GA-FG). It was diagnosed as T2 based on the invasion depth as determined by white-light endoscopy and endoscopic ultrasonography. A total gastrectomy with lymphadenectomy was performed and a GA-FG in the mucosa and submucosa was confirmed histopathologically. However, there was a gradual transition to an infiltrative tubular adenocarcinoma with poorly differentiated components in the muscular and subserosal layers. Metastasis was identified in a dissected lymph node (LN). This is the first report of a GA-FG progressing to an aggressive cancer with LN metastasis. These findings modify our understanding of the pathophysiology of GA-FG.

Histomorphometric Changes of The Parietal Cell of The Stomach with Age - A Postmortem Study.

Background: The quantity of acid produced by the stomach correlates with the functional capability and number of parietal cell mass. Researchers have found that the number of parietal cells tends to increase with advancing age in different population-based studies. Objective: A cross-sectional descriptive type of study was designed to see the variation in the number and diameter of the parietal cells of the stomach with advancing age in Bangladeshi people. Methods: The present study was done in the Department of Anatomy, Dhaka Medical College, Dhaka, from July 2005 to June 2006, based on collection of 60 human stomachs from the unclaimed dead bodies that were under examination in the morgue of Dhaka Medical College, Dhaka. The samples were divided into three age-groups including group A (2-16 years), group B (17-22 years) and group C (23-65 years). A total of 8 relatively fresh samples from group A, 8 from group B and 14 from group C were selected for histological study. Then best prepared histological slides from each group were taken and examined under the light compound microscope to determine the number per sq. mm and average diameter of the parietal cells by using the ocular micrometer. Results: The number of parietal cells per square mm of microscopic fields were found 1197.88±73.34 in group A, 1362.25±55.67 in group B and 1615.57±123.57 in group C. The difference between group A & B, B & C and A & C were statistically significant. The average diameter of the parietal cells were found 14.44±1.58ìm, 16.87±0.48ìm, 17.67±1.28ìm in group A, B and C respectively. The difference between group A & B and A & C were statistically significant. Conclusion: The number of the parietal cells increases with age, even in old age. However, the diameter of the parietal cell increases up to the 3rd decade of life and then remains static.

Antitumor effects of novel thymidylate synthase inhibitor ZD1694 in vitro and in vivo / 中国临床药理学与治疗学

10 mg?kg -1?d -1? 5 d. The inhibitory rate of ZD1694( 0.001- 1 000 mmol?L -1)on SGC-7901 cells were increased in concentration and time-dependent manner. The cell numbers in G_0-G_1 phase in SGC-7901 cells were raised by ZD1694 as well. CONCLUSION: ZD1694 can take obvious antitumor effects on S180-bearing mice. The antitumor rate of ZD1694 is in a dose-dependent manner, and it is higher when the total dosage is administered in one day than that the total dosage was divided into 5 consecutive days. ZD1694 can inhibit the growth of SGC-7901 cells and block the cells in G_1 phase in vitro.