WSI21-143-Case-1

Sequence	Case	Clinical history	Diagnosis
1	WSI21-143-Case-1 WSI21-143-Case-1	A 34-year-old female presented with a pink/tan dome shaped lesion with slightly irregular borders on her left leg Anna Harris, Martin C. Mihm Jr. and Alireza Sepehr A 34-year-old female presented with a pink/tan dome shaped lesion with slightly irregular borders on her left leg Anna Harris, Martin C. Mihm Jr. and Alireza Sepehr	Spitzoid melanoma versus Spitz nevus Spitzoid melanoma versus Spitz nevus
2	WSI21-143-Case-2 WSI21-143-Case-2	A 69 year old female developed a progressively enlarging mass on the back of the leg. Travis Hollmann and Jason Hornick A 69 year old female developed a progressively enlarging mass on the back of the leg. Travis Hollmann and Jason Hornick	Epithelioid malignant peripheral nerve sheath tumor versus melanoma Epithelioid malignant peripheral nerve sheath tumor versus melanoma
3	WSI21-143-Case-3 WSI21-143-Case-3	A 60 year-old man presented with a small pigmented lesion on his left vertex scalp Katy R Linskey and Rosalynn M. Nazarian A 60 year-old man presented with a small pigmented lesion on his left vertex scalp Katy R Linskey and Rosalynn M. Nazarian	Melanoma regression versus halo nevus Melanoma regression versus halo nevus
4	WSI21-143-Case-4 WSI21-143-Case-4	A 25 year-old pregnant woman presented with a lesion on her left inner thigh Alice Z. C. Lobo, Maria Cecilia Lezcano and Adriano Piris A 25 year-old pregnant woman presented with a lesion on her left inner thigh Alice Z. C. Lobo, Maria Cecilia Lezcano and Adriano Piris	Dermal nevus with mitoses versus nevoid melanoma Dermal nevus with mitoses versus nevoid melanoma
5	WSI21-143-Case-5 WSI21-143-Case-5	A 96 year-old female presented with a 10mm, brown-black and irregular plaque on her left arm Anna Harris and Alireza Sepehr A 96 year-old female presented with a 10mm, brown-black and irregular plaque on her left arm Anna Harris and Alireza Sepehr	Desmoplastic melanoma versus sclerosing nevus Desmoplastic melanoma versus sclerosing nevus
6	WSI21-143-Case-6 WSI21-143-Case-6	A 41-year-old male presented with a scalp lesion George Lin and Mei-Yu Hsu A 41-year-old male presented with a scalp lesion George Lin and Mei-Yu Hsu	Amelanotic blue nevus versus dermatofibroma Amelanotic blue nevus versus dermatofibroma
7	WSI21-143-Case-7 WSI21-143-Case-7	A 27 year-old woman presented with a longstanding nodule on the lower back Jennifer Kaplan and Steven R. Tahan A 27 year-old woman presented with a longstanding nodule on the lower back Jennifer Kaplan and Steven R. Tahan	Cellular blue nevus versus malignant melanoma arising in a blue nevus Cellular blue nevus versus malignant melanoma arising in a blue nevus
8	WSI21-143-Case-8 WSI21-143-Case-8	A 16 year-old girl presented with an intermittently itchy right nasolabial fold mole Devon Gimbel and Lyn M. Duncan A 16 year-old girl presented with an intermittently itchy right nasolabial fold mole Devon Gimbel and Lyn M. Duncan	Recurrent nevus phenomenon versus melanoma with regression Recurrent nevus phenomenon versus melanoma with regression
9	WSI21-143-Case-9 WSI21-143-Case-9	Sentinel lymph node biopsy in a 72 year-old male with a history of melanoma Gabrielle Baker and Lyn M. Duncan Sentinel lymph node biopsy in a 72 year-old male with a history of melanoma Gabrielle Baker and Lyn M. Duncan	Nevus cell nests versus nodal micrometastases Nevus cell nests versus nodal micrometastases
10	WSI21-143-Case-10 WSI21-143-Case-10	A 47 year-old woman with a history of melanoma on her left forearm, presented with a new pigmented lesion on her left lateral thigh May P. Chan and Beverly E. Faulkner-Jones A 47 year-old woman with a history of melanoma on her left forearm, presented with a new pigmented lesion on her left lateral thigh May P. Chan and Beverly E. Faulkner-Jones	Melanoma with senescence-like changes versus nevus with senescent change Melanoma with senescence-like changes versus nevus with senescent change

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