Melanocytic nevus Wikipedia Tumoral melanosis mimicking residual melanoma in the setting of talimogene laherparepvec treatment Journal for ImmunoTherapy of Cancer BAPomas, more formally called BAP1 inactivated melanocytic tumors (BIMTs), are rare growths that occur due to a genetic mutation. BAP1 is a tumor suppressor gene inactivated in these growths. The mutation may BAPomas, more formally called BAP1 inactivated melanocytic tumors (BIMTs), are rare growths that occur due to a genetic mutation. BAP1 is a tumor suppressor gene inactivated in these growths. The mutation may BAPomas, more formally called BAP1 inactivated melanocytic tumors (BIMTs), are rare growths that occur due to a genetic mutation. BAP1 is a tumor suppressor gene inactivated in these growths. The mutation may