Very little thick fluid able to be aspirated on needle aspiration of breast

My mom recently had a breast aspiration biopsy - the doctor said he was only able to get a small amount of very thick material out on biopsy.  Said it looked like it may be a complex cyst on the ultrasound and mammogram (not simple), but said usually in cysts the fluid comes right out.  Hers didn't, and there wasn't much he could get out.  I'm extremely concerned about her.  Any ideas on what the small amount of thick fluid can indicate - I mean, the fact that only a little could be aspirated - is this a bad sign?  She won't know the results till next week.  I'm trying to be strong for her but I'm really scared.

[CCF-RN,MSN-rf]

Dear Meghan71:  Sometimes fluid within cysts can have debris (dead cells and such) which will make it thick and difficult to aspirate.  This is not a "sign" of anything.  The pathology will give you some information and based on this, her doctor will be able to make additional recommendations if more testing is needed.

[barkley321]

A related discussion, needle biopsy was started.