Abstract
A thirty-years-old man was admitted to our hospital in Dec. 1975 with a chief complaint of pain in the distal end of the right middle finger.
One month before admission, he first noted tenderness of increasing severity in the finger.
Past history revealed that in 1974 the patient had experienced the operation for the paronychia of this finger.
Roentgenograms made at the time of admission revealed an osteolytic lesion in the distal phalanx of the right middle finger with marked thinning of the cortex.
The operation was performed with curettage and filling of the defect with bone grafts.
The pathological diagnosis was epidermoid cyst. precaution measures. Many factors may be attributed to intestinal perforation. At first, any intraperitoneal foreign body may cause intestinal perforation. The second factor is whether the tip of peritoneal shunt tube is sharp and hard or not. Although the incidence of intestinal perforation caused by the different types of shunt tube was almost equal in number. The third is the constant pressure of peritoneal catheter at the same location of intestinal wall for a long time, that is considered to be caused of the necrosis of intestinal wall. The fourth factor is the decrease in resistance of intestinal wall against the foreign body owing to poor condition of patient. The length and the location of the tip of shunt tube seem to have an intimate relation against intestinal perforation in this case. The surgical technique and the shunt tube material should be improved further in the future.
