The ulnar vessels of 50 adult cadavers were studied under operating microscope to investigate the vascular basis of an ulnar skin flap in the forearm. The length of the stem of the ulnar artery is 21.63 cm in average. The length of the covered and exposed segments is 10.79 and 10.88 cm respectively. The caliber of the ulnar artery is 3.90, 2.70 and 2.30 mm at its upper, middle and lower parts respectively. Each ulnar artery gives off 7.86 cutaneous branches in average. The number of the cutaneous branches of the covered segment is smaller than that of the exposed segment, but the caliber of the branches of the former is larger. These cutaneous branches cover an area of 79.57 cm2, mainly medial to the line from the mid-point of the medial supracondylar line to the mid-point of the interstyloid line. A large cutaneous branch arises from the covered segment with relatively constant origin, course and distribution. The caliber of this branch is 1.01 mm and its distribution area 19.57 cm2 in average. This branch may be used asa solitary arterial pedicle for a skin flap. Certain problems in relation to the transplantation of a free ulnar skin flap in the forearm were discussed.

The vessels of the medial skin flap of the leg was investigated on 50 cases of adult cadavers. Cutaneous branches of arteria tiblalis posterior distribute to the lower half of the medial surface of the leg, and the area of distribution is 134.03 cm2 in average. The muscular branches of the arteria tibialis posterior mainly distribute to the muscle flexor digitorum longus, and muscle soleus. Some attentions about taking free medial skin flap of the leg have been discussed.

Objective: To improve the chemo therapeutic effect through bronchial artery perfusion. Method: The angiographies of the bronchial arteries in 54 cases and pulmonary arteries in 10 cases of patients with advanced lung cancers were analized. Results showed: The bronchial arteries were divided into four subtype blood supply from intercostal artery, 30 cases; from bronchial artery 20 cases; from left and right bronchial arteries, 2 cases; from single intercostal artelry 2 cases. The blood vessels of pulmonary carcinomas were divided into three types: rich blood suppety 50. 2% (28 cases), poor blood supply 49.8% (26 cases) and from pulmonary artery else. Conclusion: The dual chemotherapeution pesfusion method by bronchial and pulmonary arterial approach should be considered as the proper procedure in treating advanced lung cancer of various kinds of different tissues.