TOMATO LEAVES ANOMALY.
I have a healthy tomato plant growing in a big container and I noticed that one branch from the stem has different shaped leaves. I am curious to know why? These leaves are smooth and rounded while the rest are typical tomato leaves.
Outside United States
It is too difficult to guess what could be happening just by a verbal description. Can you please post pictures of what you're describing? Also, what country are you in as it may be helpful to know your geographic region?