WSI21-143: Mimicry in Melanocytic Lesions
From MGH Learn Pathology
Request details
- Request type Study
- Subspecialty Dermatopathology
- Set MAI Derm Path Study Set
- Topic Mimicry in Melanocytic Lesions
- Presenter Hoang, Mai P.,MD
Toggle columns: Diagnosis
| Case | Clinical history | Requester | Diagnosis |
|---|---|---|---|
| Case | Clinical history | Requester | Diagnosis |
|
| 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 | null | Spitzoid melanoma versus Spitz nevus |
|
| A 69 year old female developed a progressively enlarging mass on the back of the leg. Travis Hollmann and Jason Hornick | null | Epithelioid malignant peripheral nerve sheath tumor versus melanoma |
|
| A 60 year-old man presented with a small pigmented lesion on his left vertex scalp Katy R Linskey and Rosalynn M. Nazarian | null | Melanoma regression versus halo nevus |
|
| 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 | null | Dermal nevus with mitoses versus nevoid melanoma |
|
| A 96 year-old female presented with a 10mm • brown-black and irregular plaque on her left arm Anna Harris and Alireza Sepehr | null | Desmoplastic melanoma versus sclerosing nevus |
|
| A 41-year-old male presented with a scalp lesion George Lin and Mei-Yu Hsu | null | Amelanotic blue nevus versus dermatofibroma |
|
| A 27 year-old woman presented with a longstanding nodule on the lower back Jennifer Kaplan and Steven R. Tahan | null | Cellular blue nevus versus malignant melanoma arising in a blue nevus |
|
| A 16 year-old girl presented with an intermittently itchy right nasolabial fold mole Devon Gimbel and Lyn M. Duncan | null | Recurrent nevus phenomenon versus melanoma with regression |
|
| Sentinel lymph node biopsy in a 72 year-old male with a history of melanoma Gabrielle Baker and Lyn M. Duncan | null | Nevus cell nests versus nodal micrometastases |
|
| 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 | null | Melanoma with senescence-like changes versus nevus with senescent change |
|
| A 37 year old male presented with a pigmented lesion on the left chest wall Andrea Boni • Martin C. Mihm Jr. and Adriano Piris | null | Deep penetrating nevus versus nodular melanoma |
|
| A 64 year old male presented with a new growth on the left forearm Jaime Vanourny and Vincent Liu | null | Epithelioid amelanotic melanoma versus carcinoma |
|
| A 53 year old male presented with a papule on the tip of the nose John P. Dekker • Martin C. Mihm Jr. and Mai Hoang | null | Cellular neurothekeoma versus melanoma |
|
| A 51 year old woman presented with multiple pigmented lesions near scar site of prior melanoma Johanna Baran and Mai Hoang | null | Epidermotropic metastasis versus primary melanoma |
|
| A 16 year old male presented for cosmetic management of an 8-cm congenital nevus involving his right face Olga Kolman • Martin C. Mihm Jr. and Mai Hoang | null | Congenital nevus with benign versus atypical proliferative nodule |
|
| A 82 year-old male presented with a growing lesion in front of his right ear Kevin Masami Kitagawa and M. Angelica Selim | null | Desmoplastic melanoma versus scar |
|
| A 30-year old male presented with a right leg skin lesion Leona Doyle and Mei-Yu Hsu | null | Spindle cell melanoma versus sarcomatoid carcinoma/atypical fibroxanthoma |
|
| A 35 year old pregnant woman presented with enlarging nevus on her neck May P. Chan and Steven R. Tahan | null | Benign nevus in pregnancy versus nevoid melanoma |
|
| A 24-year-old female presented with multiple nevi in the head and neck region Elgida Radoncipi Volpicelli • Alvaro C. Laga and George F. Murphy | null | Epithelioid cell changes of youth versus true dysplasia |
|
| A 76 year-old man presented with multiple • irregularly shaped and pigmented lesions on her trunk Christine G. Lian • Alvaro C. Laga and George F. Murphy | null | Dysplastic nevus versus lentiginous melanoma |
