Very small breasts with large areola. Are they tuberous and can I correct with an implant and get a good result? (Photos)

Yes, based on your pictures (without the benefit of direct examination) I think you do have constricted/tuberous breasts. Some of the characteristics of your breasts that make me think so are: short distance from areola to ill-defined to inframammary folds,  “puffy” areola, wide space between the breasts.

Yes, I think you will have a very nice result  with a breast augmentation plus or minus a circumareolar reduction procedure. Correction of tuberous breast does take a bit more work than a straight forward breast augmentation surgery.  If you are bothered by the shape of the breasts, this procedure can help "round out" your breasts and decrease the space between the breasts.  The incision around  the areola  is used to decrease the “puffy” appearance.

You may find the link attached helpful. Best wishes.

Based on your photos alone it appears that you have a minimal tubular deformity of your breasts.  Your primary issue is a lack of breast tissue with a small amount of breast herniation into the areola.  A breast augmentation with scoring of your breast tissue (to release the bands that are causing the mild breast tissue herniation) should provide you with a very nice result.  Make certain that you seek a board-certified plastic surgeon to perform the procedure.  Best of luck!