[Microscopic autofluorescence study of cardiac cancer and normal gastric tissues].
OBJECTIVE
To investigate the microscopic autofluorescent characteristics of cardiac cancer and autofluorescence distribution in different layers of gastric tissues.


METHODS
A double-channel laser scanning confocal microscopy with Argon ion laser (excitation wavelength 488 nm) and Helium-Neon laser (excitation wavelength 543 nm) were used to detect the autofluorescence emitted from 16 surgical specimens of cardiac cancer and corresponding normal gastric tissue. The autofluorescence image was analyzed between the cardiac cancer tissue and normal gastric tissue.


RESULTS
Autofluorescence was detected successfully in cardiac carcinoma and corresponding normal gastric corpus tissues of all 16 cases. In different layers of gastric tissue, fluorescence presented the strongest signal in submucosa,the second strong in luminal propria with fluorescence mostly distributed in the glands, fluorescence signal from gastric cancer was significantly decreased compared with those in the different layers of normal tissues (P< 0.01).


CONCLUSIONS
There are significant differences in the shape, color, distribution and fluorescence intensity of microscopic autofluorescence between cardiac cancer tissues and normal gastric corpus tissues.
Li
Wei
W
Department of General Surgery, The First Affiliated Hospital of Shantou University Medical College, Shantou 515041, China. wmail@medmail.com.cn
Li
Xin-xin
XX
Chen
Wen-fang
WF
Chen
Jun-tian
JT
Zeng
Yong-ming
YM
Guo
Yu-wen
YW
Chen
Sheng-lin
SL
D000368:Aged; D005260:Female; D006338:Heart Neoplasms / Q000473:pathology*; D006801:Humans; D008297:Male; D018613:Microscopy, Confocal; D008856:Microscopy, Fluorescence / Q000379:methods*; D008875:Middle Aged; D013270:Stomach / Q000473:pathology*