I have learned lately that neurosurgery is not a something that necessarily intersects with skill at cosemetology (you ought to have seen the haircut I got for surgery) or estimating the size of citrus fruits.
Ever heard the rule that doctors always compare tumor sizes to fruit? The thing I had in my head was compared to an orange. But it was about 5 cm. Think golf ball. Or if you insist, maybe a Key lime. This goes to show what happens when your country refuses to adopt the metric system.