Fig. 3
From: Mutations in ALK and TSC1 in a gastrointestinal stromal tumor: a case report
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12893-021-01208-0/MediaObjects/12893_2021_1208_Fig3_HTML.jpg)
Immunostaining reveals that the mass was negative for SDHB (× 200)
From: Mutations in ALK and TSC1 in a gastrointestinal stromal tumor: a case report
Immunostaining reveals that the mass was negative for SDHB (× 200)