This is a site I read about when my Brother-in-law went into the VA hospital to have some non cancerous lumps removed. He sprayed about as much of the stuff as any other pilot in Vietnam. What's funny about the site was that they advertise herbacides. There just wasn't a large enough study group for any one disease.
Does Agent Orange Cause Cancer?
Studies of Vietnam veterans potentially provide the most direct evidence of the health effects of Agent Orange exposure. However, because of the small number of highly exposed persons, these studies have yielded very limited information on cancer.
Soft Tissue Sarcoma: Studies of Vietnam veterans have not demonstrated an increase in soft tissue sarcomas.
In particular, no association with soft tissue sarcoma was seen in the Ranch Hand study, in a study of over 10,000 Marines who had served in Vietnam, a large study of sarcoma patients in VA hospitals, the Selected Cancers Study, or studies of veterans in Michigan, Massachusetts, or other states. A study of Australian Vietnam veterans suggested a large increase in soft tissue sarcomas, but this finding was based on a mail survey of self-reported diagnoses. In a follow-up study designed to confirm the diagnoses, the excess of soft tissue sarcomas could not be verified.
Non-Hodgkin's (Non-Hodgkin) Lymphoma: Most studies of Vietnam veterans have not shown an increase in non-Hodgkin lymphoma (NHL).
The Selected Cancers Study showed that Vietnam service was associated with a 50% increased risk of NHL, but self-reported Agent Orange exposure was not linked with increased risk. Similarly, in the CDC's Vietnam Experience Study, there were seven NHL deaths among about 8,000 Vietnam veterans and only one NHL death among about 8,000 non-Vietnam veterans. Based on military job titles, there was no suggestion that the seven Vietnam veterans with NHL had sustained Agent Orange exposure. The Ranch Hand study showed no increase in NHL, nor did the VA mortality study of over 33,000 Army and Marine Vietnam veterans, a study of over 200 Vietnam veterans with NHL, or numerous state-level studies. A study of Australian Vietnam veterans suggested a large increase in NHL, but this finding was based on a mail survey of self-reported diagnoses. In a study that attempted to confirm the diagnoses, the number of NHL cases declined to the upper end of the expected range.
Hodgkin's (Hodgkin) Disease: Studies of Vietnam veterans have not demonstrated an increase in Hodgkin disease.
In particular, the Ranch Hand study did not show an increase in these tumors, nor did a study of over 33,000 Army and Marine Vietnam veterans, the Selected Cancers Study, a study of more than 250 Vietnam-era veterans with Hodgkin disease, or studies of veterans in Michigan, New York, or other states.
Lung and Other Respiratory Cancers: Studies of Vietnam veterans have not shown a consistent pattern of increases in respiratory cancers, such as those of the lung, trachea (windpipe), bronchus, and larynx (voice box).
http://experts.about.com/q/1426/3702637.htm