The only difference between the two is that pascal case requires the first letter of the first word to also be capitalized. So, when using pascal case, every word starts with an uppercase letter (in contrast to camel case, where the first word is in lowercase).

The more specific terms Pascal case and upper camel case refer to a joined phrase where the first letter of each word is capitalized, including the initial letter of the first word. Similarly, lower camel case (also known as dromedary case) requires an initial lowercase letter.

The syntax of the case statement is − case (expression) of L1 : S1; L2: S2;...... Ln: Sn; end; Where, L1, L2... are case labels or input values, which could be integers, characters, boolean or enumerated data items. S1, S2,... are Pascal statements, each of these statements may have one or more than one case label associated with it.