Remodeling of the pulmonary artery induced by metastatic gastric carcinoma: a histopathological analysis of 51 autopsy cases

Table 6 Histopathological types of gastric carcinoma in cases with below and above the lower limit of the 95% CI in each group of pulmonary arterial zone

	Pulmonary artery under 100 μm zone		Pulmonary artery 100 to 300 μm zone		Pulmonary artery over 300 μm zone
Type*	Intestinal	Diffuse	Intestinal	Diffuse	Intestinal	Diffuse
Below the lower limit of the 95% CI	21	10	21	10	21	12
Above the lower limit of the 95% CI	4	16	4	16	4	14
P value (Chi-Square test)	P < 0.001		P < 0.001		P = 0.005

Legend: In the groups of pulmonary artery under 100 μm and 100 to 300 μm zones, cases with stenosis of pulmonary arteries below the lower limit of the 95% CIs had 21 cases of intestinal type gastric carcinoma and 10 cases of diffuse type one. On the other hand, cases with stenosis of pulmonary arteries above the lower limit of the 95% CIs had 4 cases of intestinal type gastric carcinoma and 16 cases of diffuse type one.
In the group of pulmonary artery over 300 μm zones, cases with stenosis of pulmonary arteries below the lower limit of the 95% CIs had 21 cases of intestinal type gastric carcinoma and 12 cases of diffuse type one. On the other hand, cases with stenosis of pulmonary arteries above the lower limit of the 95% CIs had 4 cases of intestinal type gastric carcinoma and 14 cases of diffuse type one. In addition, our statistical analysis revealed that the ratio of diffuse type gastric carcinoma was significantly higher than the ratio of intestinal type one in cases with stenosis of pulmonary arteries above the lower limit of the 95% CIs in each arterial diameter zone (Chi-Square test, in the under 100 μm, 100 to 300 μm, and over 300 μm zones, P < 0.001, P < 0.001, P = 0.005, respectively).
*: “Type” indicated in the table means each histological type of gastric carcinoma proposed by Lauren [19].

ISSN: 1471-2407