If you check your skin monthly can nodular melanoma be caught early. the question is specifically about the nodular type and not superficial, acral..

Yes you can: Nodular melanomas do show up in areas where there was no mole. Yet these lesions take some months to develop; so once monthly skin self exam is a good way to watch out and catch them early. Best wishes.

Yes: It is possible to catch nodular melanoma in its earliest stages. Melanoma that is detected early has the best chance at treatment.