Does this "small sort of oval type" produce any pain or discomfort?
According to your description, you might be noticing the epididymis, which can often be inflamed, but you require a physical examination to confirm this. The appendix of the testis doesn't have clinical significance. And it's normal to experience asymmetry between the testicles. Most men have testicles of different size and placement. Nonetheless, you may consult urologist for advice and consultation.
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