CATSPER2 and nodular sclerosis classical Hodgkin lymphoma: We found that the CATSPER2 gene was involved in 77.0% (10/13) of these patients, including one individual in which the deletion encompassed only CATSPER2 and ψSTRC and not STRC. Four individuals were homozygotes for a large contiguous STRC-ψSTRC-CATSPER2 deletion, indicating that they in fact are affected by DIS and not NSHL.