What cancer type represents 90% of all malignancies?

a. mixed-tissue tumor
b. sarcoma
c. carcinoma
d. multiple myeloma

Right, The answer is letter C - Carcinoma.

>>90% of malignant kidney tumors is "renal cell carcinoma".
>> 90% of all primary malignant tumors arising from the pancreatic gland is "pancreatic ductal adenocarcinoma".
>>90% of cancers of the head and neck are due to "squamous cell carcinoma".
>>80 - 90% of all liver cancers are due to "hepatocellular carcinoma".
>>90% of oral cancer is attributed to "squamous cell carcinoma".
>>90% or more of skin cancer is accounted with "basal cell carcinoma".
>>90% of eyelid malignancies is due to "basal cell carcinoma".
>>90-95% of gastric cancers are gland-forming adenocarcinomas.
>>90% of all endocrine cancers are "thyroid carcinoma".
>>90% of cancers found in the bladder are accounted to "transitional cell carcinoma".
>>90% of cervical cancers are accounted to "squamous carcinoma".
>>90% or more of lung cancer is due to "carcinoma".
>>90% of ovarian cancer is of "carcinoma" in origin.
==Etc.etc,etc...those are the proofs that 90% of all malignancies are represented by "carcinoma".

carcinoma

must be C surprises me that its as high has 90% though, i thought it was more like 60 70 maybe 80%

The correct answer to your question is 鈥楥鈥? Carcinoma which is a malignant tumour that begins in the lining layer (epithelial cells) of organs. At least 80% of all cancers are carcinomas. (not 90% as you suppose).
As an aside, the most common type of cancer is nonmelanoma skin cancer.
matador 89