Image Challenge – November 2022

Skin examination reveals a dark pigmented irregular lesion R anterior shin. Noticed for the first time after a morning of yard work. Previous dermatology history includes a large Becker’s nevus L scapula, several small hematomas, multiple mocha colored age spots and solar keratoses. Patient has never consulted Dermatology and has never been followed medically for his Becker’s nevus. No family history of skin cancers.

Merkel Cell Carcinoma (MCC)

Patients treated for Merkel cell carcinoma (MCC) face a five-year recurrence rate of 40% — markedly higher than the recurrence rates for melanoma and other skin cancers, according to research published today in JAMA Dermatology.

University of Washington School of Medicine/UW Medicine. “Patients with rare skin cancer face 40% recurrence rate.” ScienceDaily. http://www.sciencedaily.com/releases/2022/02/220223111226.htm (accessed February 24, 2022).

More on Vulvar Melanoma

Lesions could be angiokeratomas, petechiae, purpura, melanosis, and nevi, for example. Seborrheic keratoses can mimic melanoma. “If it looks odd, don’t be afraid to biopsy it,” said Mauskar, assistant professor of dermatology and obstetrics and gynecology at the University of Texas Southwestern Medical Center in Dallas.

Low Threshold to Biopsy Atypical Lesions May ID Vulvar Melanoma Early, Experts Say — https://www.medscape.com/viewarticle/941157?src=rss

I first became aware of melanoma down there back in June of this year. See Vulvar Melanoma Is Increasing in Older Women

So remember, if it looks odd get it biopsied.