Cutaneous horn

A 22yrs old female is presented with the following since last 1 month,no complaints.Kindly do the diagnosis n suggest me required treatment.

70 yr old man approx 1 cm size pigmented lesion on at jn of upper lip and skin. lesion here for 2 month. clinicians think Malignant. what ur opinion.

70 yr female with non healing ulcer- scalp comment on biopsy

Blood and pus formation since 1 to 2 years Daignosis and Rx!???

40 years Male infected nodule with scab. what are the differentials,? points support the diagnosis?