30 year old woman with changing mole

This 30 yo woman has noticed an enlarging pigmented lesion in her right axilla for almost a year. Her mother, a registered nurse, asked her to see a dermatologist. Her husband did not notice it.
The patient has Type II skin. The general cutaneous exam was unremarkable save for a 1.2 cm in diameter barely elevated plaque. There is a play of pigment and outline is irregular.

An excisional biopsy was performed.

Pathology: Malignant melanoma in situ , superficial spreading type. (Read by H. Byers of BU Skin Path who took photomicrographs) "The specimen exhibits a marked nested and lentiginous melanocytic proliferation with large severely atypical epithelioid cells. There is irregular nesting, focal confluent lentiginous melanocytic proliferation and cellular dyshesion."









































She is scheduled for a wider excision, 0.5 cm on either side. No further work-up other than regular follow-up visits.

Your thoughts are appreciated.

Positive Band Aid Sign

Most dermatologists know about the "positive band aid sign." To me, it means a skin cancer has been lurking there for a while.

This 82 yo man came in with a one year history of a "sore" on his back. The drainage stained his shirt. When the band aid was removed, there was a one cm in diameter clean friable tumor, most likely a basal cell.

The lesion was shave biopsied and desicated and curetted. I'll affix a copy of the biopsy report when I get it.

How many of you use the term "Positive band Aid Sign?"