Malignant mesotheliomas may be classified into epithelioid (60%), sarcomatoid (20%), or mixed (20%) type microscopically. Malignant deciduoid mesothelioma, a rare phenotype of epithelioid mesothelioma, arises more commonly from the peritoneum of young women, but is also from the pleura of elderly people. In the current report, the authors describe an unusual case of peritoneal malignant epithelioid mesothelioma with rare deciduoid phenotype demonstrated with 67Ga SPECT/CT.
From the *Department of Nuclear Medicine and PET Center, China Medical University Hospital, China Medical University;
†Department of Nuclear Medicine, Lin Shin Hospital, Taichung City;
‡Department of Nuclear Medicine, National Taiwan University Hospital, and
§School of Medicine, National Taiwan University, Taipei City;
∥School of Medicine, and
¶Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung City, Taiwan.
Received for publication September 13, 2018; revision accepted September 28, 2018.
Te-Chun Hsieh and Shung-Shung Sun contributed equally to this work.
Conflicts of interest and sources of funding: none declared.
Correspondence to: Shung-Shung Sun, MD, Department of Nuclear Medicine and PET Center, China Medical University Hospital, China Medical University, No. 2, Yuh-Der Rd, North District, 40402, Taichung City, Taiwan. E-mail: firstname.lastname@example.org.