When can a tumor be non-cellular or non-neoplastic? And how can some neoplasms b!
Question: When can a tumor be non-cellular or non-neoplastic!? And how can some neoplasms be cell free!?
So basically, I've got a bio midterm tomorrow, and so in the process of studying, I realized I completely don't get that! Even my bio friends are like, what!.!.!.!.!? So if ANYONE can help us out here, that would be fantastic! Thanks!Www@Answer-Health@Com
Answers:
The word tumor is defined (in Answers!.com) as "An abnormal growth of tissue resulting from uncontrolled, progressive multiplication of cells and serving no physiological function; a neoplasm!." So your teacher is playing with semantics here!.
The only way a "mass" could be non-cellular would be if it were cystic - - a contained area of fluid!. We see this with some ovarian tumors which may be benign or malignant!. The benign ones are ovarian serous cystadenomas or mucinous cystadenomas which can be quite large tumor masses!. These do contain cells however in the membranous sacs surrounding the fluid
http://www!.mypacs!.net/cases/MUCINOUS-CYS!.!.!.Www@Answer-Health@Com
The only way a "mass" could be non-cellular would be if it were cystic - - a contained area of fluid!. We see this with some ovarian tumors which may be benign or malignant!. The benign ones are ovarian serous cystadenomas or mucinous cystadenomas which can be quite large tumor masses!. These do contain cells however in the membranous sacs surrounding the fluid
http://www!.mypacs!.net/cases/MUCINOUS-CYS!.!.!.Www@Answer-Health@Com