Case

Bio202/A- Human Anatomy & Physiology II

Case Study # 1

Name:________________________

“My Brother Calls Me ‘Bug Eyes’”: A Case Study on the Endocrine System

Nineteen-year-old Krista waited impatiently as Dr. Weisman scribbled in his chart. She

hoped he was scribbling an explanation of what was wrong with her. She was tired of not

feeling like herself and tired of being so stressed about it. She was particularly tired of

how her eyes seemed to bulge outward, so much that her 10-year-old brother had started

calling her “Bug Eyes.”

Dr. Weisman finally put down his pen and looked at Krista. “Well, your blood pressure

and pulse are elevated. You’ve lost weight without trying, you have difficulty sleeping,

you perspire more than usual and you’ve had continuing bouts of diarrhea. Those things,

combined with the swelling in the front of your neck, suggest that you may be suffering

from more than the stress of college life. I think we need to run some blood tests to check

your thyroid function.”

Krista blinked in surprise. “All of those things can be caused by a problem with my

thyroid? Even the way my eyes look?”

Dr. Weisman nodded. “Your thyroid secretes several hormones that have widespread and

varied effects. The protrusion of your eyes is a condition called exophthalmos – it is an

inflammatory response to abnormal levels of thyroid hormones. The fact that you have

this condition in addition to your other symptoms makes me fairly certain this is a thyroid

problem.”

Krista hoped Dr. Weisman was right. Having a medical explanation for her symptoms

would mean that she wasn’t losing her mind.

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Several days later, Krista met again with Dr. Weisman.

“Let’s talk about your test results,” he said. “Your thyroid hormone levels are elevated,

but your level of thyroid-stimulating hormone (TSH) is lower than it should be. Those

results suggest that you probably have Graves’ disease, which means that your thyroid is

overactive. But there’s good...