In Cancer Battle, Do Appearances Deceive?

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As Patrick Swayze walked through Los Angeles International Airport on Sunday, evidence of the pancreatic cancer diagnosis he received earlier this year was conspicuously absent.

While Patrick Swayze is still looking well nearly five months after his cancer diagnosis, Steve...

While Patrick Swayze is still looking well nearly five months after his cancer diagnosis, Steve Jobs' gaunt frame has investors worried. It is a widely held notion that the appearance of cancer survivors point to their health, but doctors say there is more to cancer than meets the eye.

(AP Photo/Splash News)
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He greeted reporters with a smile, and when asked about his health, he gave a thumbs-up and replied, "I'm a miracle, dude, I don't know why."

As the media single out Swayze for his healthy looks despite his disease, another public figure's appearance has also been the subject of speculation -- but on the opposite end of the spectrum.

Apple CEO Steve Jobs was diagnosed with the same disease in October 2003 and had surgery the following year to remove a pancreatic tumor.

Though his condition was thought to have been cured by the surgery, last month when he spoke at the company's annual developers conference Jobs seemed to have lost a significant amount of weight, leaving investors questioning the state of his health.

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On average, patients diagnosed with pancreatic cancer have only a one-in-20 chance of being alive five years after the cancer is found, according to the National Cancer Institute.

The average life expectancy is grim as well. The patient-advocacy group Pancreatic Cancer Action Network reports that 75 percent of pancreatic cancer patients die within a year of their diagnosis.

While Wall Street-watchers might search for slight indications of trouble ahead, medical experts say that you simply can't judge cancer patients by their appearance.

"Looks can be deceiving, and it can happen in either direction," says Dr. Michael Fisch, director of the general oncology program at the University of Texas M.D. Anderson Cancer Center.

Fooled by Face-Value

For one, a person's seemingly ill outward appearance could actually indicate that they are undergoing treatment and not that they are in the stages of advanced disease.

"Some people can really look terrible right after a dose of chemotherapy, and then they look better," says Dr. Steven Greer, CEO of The Healthcare Channel. "That's not indicative of them being on their deathbed."