The Mayo Clinic experience and patient stories Our patients tell us that the quality of their interactions, our attention to detail and the efficiency of their visits mean health care like they've never experienced. See the stories of satisfied Mayo Clinic patients. FISH testing helps detect unseen cancer cellsOn the brink of losing her battle with acute myeloid leukemia, Shannon Camlek arrived at Mayo Clinic as a last hope. Her chances didn’t look good, but with the help of specialized genetic testing, particularly FISH (fluorescence in situ hybridization) studies, doctors were able to detect the specific gene mutations responsible for her symptoms and disease. The test results also helped Shannon’s care team target her treatment accordingly, and finally put an end to what… Request an appointment ResearchCosts & insurance Aug. 30, 2025 Share on: FacebookTwitter HematologyDepartmenthomeSectionsOverviewTests & proceduresConditions treatedDoctorsSpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals SectionsRequest an AppointmentOverviewTests & proceduresConditions treatedDoctorsSpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals ORG-20180185 Medical Departments & Centers Hematology