Matrix peteciae of the nail a distal semilunar purplish zone 2 mm width

with retarded reaction to pressing

is mostly seen in lung cancer

metastatic cancer in the lungs

liver

cancer

general metastasis of carcinoma and obstructive lung diseases such as corpulmonale

bronchialasthma

chronic bronchitis. In TCM diagnosis

all cases belong to blood stasis syndrome

the animal model of which revealed three - grade vesselarches. From the first grade

blood vessels run straight out

and the blood stream flows like waterfall

uneasy to become static. Network with crossing capillaries stemmed out from the second grade in which the blood flows slowly. Its arch was just located at the distal semilunarnail materix

tending to form petechiae due to circulatory disturbancein blood stasis type. By synchronous observation on sublingualcollaterals

both can be seen as signs for the diagnosis of blood stasis syndrome.