A medical diagnosis isn't always black and white. Indeed, it's often clouded
by shades of gray. Some diseases begin with symptoms so subtle or common that
they confound even experienced doctors. Other times, a patient knows exactly
what's wrong but can't decide which treatment is best.
Enter the second opinion. It's never a bad idea to seek a second opinion,
but if you receive one of these five diagnoses, it's practically a must.
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If you've been diagnosed with an uncommon cancer -- or if there's any
question about whether it's truly cancer -- seek a second opinion from a
pathologist who has expertise in diagnosing this type of malignancy. After all,
the diagnosis will determine which treatment is best.
"There are certain kinds of tumors that provide a lot more difficulties
in diagnosis," says John E. Tomaszewski, MD, FASCP, vice chairman of
Anatomic Pathology-Hospital Services at the University of Pennsylvania School
of Medicine. For example, sarcomas -- an uncommon cancer of soft tissues, such
as muscle or fat -- can be complex to classify. "A general pathologist may
not see a lot of soft-tissue tumors," he says.
Major medical centers that see larger numbers of rare or unusual tumors are
often a better choice for a second opinion than a smaller hospital, according
to John S.J. Brooks, MD, FASCP, president of the American Society for Clinical
Pathology. "These folks that have very rare tumors, [a hospital] near them
may only see very few," he says.
Getting that second opinion can help catch errors.
"Anytime there's uncertainty, it's always fine [to get a second
opinion]," Tomaszewski says. "Pathology ... is like every other area of
medicine. There are things that are very clear and things that are on the
2. ADHD in Children Under Age 6
With no specific lab test for attention deficit hyperactivity disorder
(ADHD), the problem can be tough to diagnose accurately. A doctor's judgment
comes into play; he or she may diagnose ADHD if a child shows hyperactivity,
inattention, and impulsivity in at least two settings, such as home and
When a child under age 6 is diagnosed with ADHD, parents may want a second
opinion from a specialist, such as a child psychiatrist, says Sara Rizvi, MD,
assistant professor of pediatrics at the Baylor College of Medicine. That's
because ADHD symptoms, such as too much talking or fidgeting, can overlap with
behavior that's typical among young children.