Dear Nouman Ali ,

Look the link, may be useful.

https://www.cs.cmu.edu/~cil/v-images.html

Regards, Shafagat

i hope this url be usefull

http://homepages.inf.ed.ac.uk/rbf/CVonline/Imagedbase.htm

https://wiki.cancerimagingarchive.net/display/Public/CBIS-DDSM

https://wiki.cancerimagingarchive.net/display/NLST/National+Lung+Screening+Trial

The deep learning community in the Kaggle platform often works on medical images for open competitions. I suggest to have a look here :

https://www.kaggle.com/c/ultrasound-nerve-segmentation

for ultrasound images

https://www.kaggle.com/c/diabetic-retinopathy-detection

for retinopathy images

https://www.kaggle.com/c/mlsp-2014-mri

for brain mri

These are just examples.

Good luck !