Day 12 A Month of Teal : My Ovarian Cancer Tumor Got a Grade?

Yes, your tumor is given a grade.

A pathologist will look at your tumor and fluids (such as ascites) under a microscope and give it a grade.

Most epithelial ovarian cancers are graded as:
LGSC -- low-grade serous carcinoma
or
HGSC -- high-grade serous carcinoma.

For other histologic types of ovarian cancers (see Day 8 post) pathologists assign a grade of 1, 2, or 3. Grade 1 is most like normal healthy tissue. Well-defined or differentiated are other terms you may hear for Grade 1. Grade 2 more cells abnormal than normal. They call this moderately differentiated. And grade 3 which is most irregular or poorly differentiated.  Grade 3 is believed more likely to spread.

Source: http://www.cancer.net/cancer-types/ovarian-fallopian-tube-and-peritoneal-cancer/stages-and-grades

Dee
Every Day is a Blessing!

Day 8 A Month of Teal -Types of Ovarian Cancer Tumors

I never realized until the end of my treatment that there were different types of ovarian cancer (OC) tumors. My tumor type,  epithelial ovarian cancer is the most common at 95%.

Epithelial OC tumors come from the surface of the ovary. There are 5 subtypes of epithelial OC.

high grade Serous 70%

mucinous 3%

clear cell 10%

endometrioid 10%

low grade serous < 5%

Germ Cell Ovarian Cancer forms in the egg cells of the ovary.

Teratoma - Mature cystic terotoma, Immature teratoma

Mondermal teratoma

Dysgerminoma

yolk sac tumor

embryomal carcinoma

Choriocarcinoma

 

Sex Cord Stromal forms in the sex cord/ ovarian follicles

granulosa cell

Thecoma

Sertoli

Sertoli-Leydig

Fibroma / Fibrsarcoma

Sclerosing stromal

 

To learn more please visit these sources:  

Pathology and claissification of ovarian tumors 

http://onlinelibrary.wiley.com/doi/10.1002/cncr.11345/pdf

 

New Insights into Ovarian Cancer Pathology

https://academic.oup.com/annonc/article/23/suppl_10/x111/205997/New-insights-into-ovarian-cancer-pathology 

 

John Hopkins Pathology website 

http://ovariancancer.jhmi.edu/typesca.cfm

Dee

Every Day is a Blessing!