<prompt> All are true about succinate dehydrogenase deficient gastrointestinal stromal tumor SDH-deficient GIST exceptMore common in children and young adultNegative for DOG-1Most common location is stomachAssociated with Carney-Stratakis syndrome  <response>: Answer- B. Negative for DOG-1Succinate dehydrogenase SDH deficient - Gastrointestinal Stromal Tumors GIST-Pathological features-SDH deficient - GISTs do not have c-KIT mutation -- absence of c-KIT mutation.They strongly express KIT and DOG1Ano-1, but do not have KIT mutation.Clinical features-They maY be associated with :-Carney stratakis syndrome - Paraganglioma with familial GISTCarney triadThese tumors have tendency to appear in children and young adultsThey occur exclusively in stomach. 