mTOR Inhibitor-Induced Transient Acantholytic Dermatitis.

A 61-year-old Caucasian male with a medical history of metastatic carcinoid presented to dermatology with a new onset severely pruritic “breakouts” on the arms, neck, and chest. Approximately ten years prior, he was diagnosed with a small bowel carcinoid tumor and liver metastases treated with a combination of resection and ablation.