The image above indicates which of the following concerning this BAP 1 immunohistochemistry stain?
The lesion shown below is from the face of a 17 year old boy. It presented as a skin-colored papule. The clinical suspicion was Spitz nevus. The lesion was submitted for a second opinion as it did not express any of the melanocytic markers such as S100, MART1 or HMB45 even though the sections appear vaguely resembling Spitz nevus.
You are considering a diagnosis of cellular neurothecoma, a soft tissue tumor, which can be mistaken for a melanocytic neoplasm, especially Spitz nevus. The best way to confirm the diagnosis would be to perform which of the following immunohistochemical stains?
Which of the following features favor the diagnosis in the image?
The following neoplasm demonstrates the following immunohistochemistry profile: S100 (+), HMB45 (+), Melan A (+), MITF (+), c-KIT (-)
What feature(s) would direct you away from a diagnosis of melanoma:
Complete the following statement:
In general, patients whose tumors do not express PD-L1 on immunohistochemical studies, respond to anti PD-1/PD-L1 monotherapy ________________.
In nearly every state in the US, the statute of limitations (time during which litigation must be filed) begins to toll:
In order for a case of medical malpractice to foment, there must be:
Simple recurrent nevi often demonstrate:
Cellular blue nevi often show a mutation in which gene?
Images below are from a biopsy of "lentiginous melanoma"
Which statement regarding lentiginous melanoma is correct?