Help understanding My Path Report

Hello. Life knocked the wind out of me last week when I learned that what I thought was a mole snagging on my bra strap is melanoma. I mentioned it as an after thought in an appt I made to talk about a cough that wouldn't quit. I'm so glad I did. My PET CT and surgeon appts are this week. Is there somebody who can help my understand this report?

Edit to add report below.

SEE NOTES Material submitted: . back - BACK SEE NOTES

*** Diagnosis: BACK, BIOPSY: Invasive malignant melanoma with the following features: Microscopic tumor type: Superficial spreading. Breslow thickness: At least 2.4 mm. Clark level: At least IV. Ulceration: Present. Margins: Peripheral and deep tissue edges involved. Mitotic index: 5 per mmsq. Vascular invasion: Focus suspicious for vascular invasion present. Regression: Not detected. Tumor infltrating lymphocytes: Non-brisk. Pathologic staging (pTNM): At least pT3b. See comment. SRA 12/03/2024 1418 LOCal **********************************************************************Comment: A Melan-A stain highlights the lesional cells and a p16 stain demonstrates loss of expression, supporting the above diagnosis. The above Breslow thickness measurement and pathologic staging represent minimal estimates given the involvement of the tissue edges.