Metastatic multifocal melanoma of multiple organ systems:A case report  

作　　者：Vaidota Maksimaityte Rosita Reivytyte Gabriele Milaknyte Ugnius Mickys Gintare Razanskiene Domantas Stundys Edita Kazenaite Jonas Valantinas Ieva Stundiene 

机构地区：[1]Institute of Clinical Medicine,Faculty of Medicine,Vilnius University,Vilnius 01513,Lithuania [2]Faculty of Medicine,Vilnius University,Vilnius 01513,Lithuania [3]Institute of Biomedical Sciences,Faculty of Medicine,Vilnius University,Vilnius 01513,Lithuania

出　　处：《World Journal of Clinical Cases》2022年第28期10136-10145,共10页世界临床病例杂志

摘　　要：BACKGROUND Malignant melanoma is becoming more common among middle-aged individuals all over the world.Melanoma metastasis can be found in various organs,although metastases to the spleen and stomach are rare.Herein we present a rare metastatic multifocal melanoma,clinically and histologically mimicking lymphoma,with metastases of multiple organs.CASE SUMMARY A 46-year-old Caucasian male with a history of nodular cutaneous malignant melanoma was presented with nausea,general weakness,shortness of breath,abdominal enlargement,and night sweating.The abdominal ultrasound revealed enlarged liver and spleen with multiple lesions.Computed tomography demonstrated multiple lesions in the lungs,liver,spleen,subcutaneous tissue,bones and a pathological lymphadenopathy of the neck.Trephine biopsy and the biopsy from the enlarged lymph node were taken.Tumor cells showed diffuse or partial positivity for melanocytic markers,such as microphthalmia-associated transcription factor,S100,HMB45 and Melan-A.The tumor harbored BRAF V600E mutation,demonstrated by immunohistochemical labelling for BRAF V600E and detected by real-time polymerase chain reaction test.Having combined all the findings,a diagnosis was made of a metastatic multifocal melanoma of the stomach,duodenum,liver,spleen,lungs,lymph nodes and bones.The patient refused treatment and died a week later.CONCLUSION This case report highlights the clinical relevance of rare metastatic multifocal melanoma of multiple organ systems.

关 键 词：Metastatic melanoma Gastrointestinal tract NODULAR MULTIFOCAL BRAF V600E Case report 

分 类 号：R739.5[医药卫生—肿瘤]