The occurrence of primary sarcoma of any form in the omentum is so rare that Bonamy and Bonamy1 in 1908 were able to collect reports of but sixteen well-authenticated cases. In these, eleven of the tumors were spindlecelled, one was round-celled, three were myxosarcomata and one a fibrosarcoma. Cobb2 two years earlier had been able to collect reports of fourteen cases, four of which were not in the list given by the Bonamys. Since then reports by Conforti3 (four cases), Marcialis,4 Lichkus5 and Frew6 have been made. Many of the earlier reports are lacking in detail and it is difficult to draw conclusions from the few in which important differential points are mentioned.
Clinically the condition appears to affect the white race most commonly, only one exception being recorded, the case of Frew occurring in a Chinaman. In twenty-eight cases sex has been mentioned,
KARSNER HT. A CASE OF PRIMARY ENDOTHELIOMA OF THE GREAT OMENTUM. JAMA. 1911;LVI(25):1871–1873. doi:10.1001/jama.1911.02560250007003
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