The lipid composition of human epididymis.

In the present study the lipid composition of human epididymidis is reported. The total lipids represented 1.25 per cent of the total wet weight of the tissue. The phospholipids formed 64 per cent, cholesterol 12 per cent and glycerides 24 per cent of the total lipids. In patients with obstruction of efferent ducts, the total lipids were increased due to the significant in creases observed in glycerides and cholesterol of the epididymidis. There was a marked fall in epididymal phospholipids due to a fall in phosphatidyl choline and phosphatidyl ethanolamine.