• Confirmed diagnosis of CLL, B-PLL, T-PLL, SLL, T or NK-LGL, HCL or Richter's transformation

• 18 years of age or older

• Signed, written informed consent

• Presence of one or more of the following disease situations:

‣ Newly diagnosed patients without treatment indication (eligible for watch and wait Approach Treatment within a clinical trial according to the AMG or status post participation in a clinical Trial)

⁃ Treatment with standard therapies approved for the eligible entities or status post treatment (outside of clinical trials)

⁃ Referral for evaluation the indication for HSCT

⁃ Relapsed disease status (even if first diagnosis was prior to activation of the registry)