Gullotta U, Denffer H
Rofo. 1976 May;124(5):466-71. doi: 10.1055/s-0029-1230370.
Results and X-ray findings of 125 dacryocystographies are discussed. Type II obstruction is the commonest pathological finding, Type I is caused often by a trauma. DCG gives a good morphological picture of tear drainage system and represents a very important method for planning surgical therapy.