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Gruesome



Joined: 30 Mar 2008
Posts: 2

PostPosted: Sun Mar 30, 2008 5:13 pm    Post subject: What causes cysts? Reply with quote

Hope I'm asking this in the right forum...

I'm a sonography student and scanned a patient with several cysts in her abdomen. We saw at least eight (of various sizes) in her liver and another on one of her kidneys. She also stated that she had previously had ovarian cysts. Unfortunately, we do not have much contact with our radiologists (they look at the images on PACS remotely), so it's hard to ask them questions.

All I can seem to find is that "some people are more prone to cyst formation". But why [i:cf87ed579f]is[/i:cf87ed579f] that? The patient was in her mid-forties and thought she had gallbladder issues because of her symptoms. BTW, her GB was fine.

So what causes cysts? And why are some people more apt to get them?

hjhogle
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Joined: 23 May 2006
Posts: 1083
Location: New Haven, CT

PostPosted: Sun Mar 30, 2008 7:59 pm    Post subject: Reply with quote

Variable.

For instance, Baker's Cysts (formed behind the knee) can be associated with Lyme disease. They can also arise from meniscal tears.

Ganglion cysts (that usually form around joints and tendons in the hand and foot) are believed to result from overuse of the joint.

Some ovarian cysts form when ovulation doesn't happen ... the follicle doesn't rupture or release its egg and it grows until it's classified as a cyst.

So to get an answer to your question, you need to know exactly what type of cyst are you talking about?

If your patient had cysts on her liver and kidneys, it's possible that she had polycystic kidney disease. PKD is known to be progressive and hereditary. I think the numbers are something like 5 or 6 million people are affected by this potentially life-threatening disease.

I don't think, by the way, that there's any connection between PKD and ovarian cysts. More than 90% of all females before menopause has had or will have multiple ovarian cysts. Most of those are asymptomatic.

There's a basic explanation of cysts here:
http://www.medicinenet.com/cysts/article.htm

Good luck, and keep asking questions
hjh, RT

Gruesome



Joined: 30 Mar 2008
Posts: 2

PostPosted: Thu Apr 03, 2008 3:43 pm    Post subject: Reply with quote

Thanks for your response. This seems to be one of those seemingly simple questions with a very complex answer. I could spend untold hours on the pathology and etiology - if I didn't need to sleep, or eat, or work...

papa
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Joined: 02 Oct 2007
Posts: 296
Location: The State of Confusion

PostPosted: Thu Apr 17, 2008 8:57 am    Post subject: Reply with quote

hj --

pilonidal cysts.... ??

papa

hjhogle
Moderator


Joined: 23 May 2006
Posts: 1083
Location: New Haven, CT

PostPosted: Thu Apr 17, 2008 9:32 am    Post subject: Reply with quote

Pilonidal cyst, aka saccrococcygeal fistula. See here -
http://www.mayoclinic.com/health/pilonidal-cyst/DS00747

The sources I checked all said that, although there are plenty of theories, no one really knows what causes them.

hjh

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