Among the 26 cases of primary orbital tumors studied in the pathology department of the Graduate Hospital in the last nine years there was a predominance of lymphoid tissue tumors (7 cases) and neurogenic tumors (5 cases). There were only three vascular tumors, and one of these was the case under discussion; the other two were hemangiomas, which Reese1 found to be the commonest in his extensive series of orbital neoplasms.
This case now presented illustrates the seriousness of a condition ordinarily considered to be of relatively low malignancy. The patient, a man aged 36, was referred on Dec. 8, 1951, by Dr. R. E. M., of New York, with a tentative diagnosis of retrobulbar hemangioma, with exophthalmos, with swelling of the upper lid, and with accompanying ptosis. The condition was of 18 to 24 months' duration and was slow in onset.
A manifest, easily palpated lesion was present
SPAETH EB, VALDES-DAPENA A. Hemangiopericytoma. AMA Arch Ophthalmol. 1958;60(6):1070-1073. doi:10.1001/archopht.1958.00940081090013