# Hematology Outpatient Clinic C2-C5, Comprehensive Cancer Center Keywords: - [cancers](< /en/search?q=cancers >) - [cancer](< /en/search?q=cancer >) - [hematology](< /en/search?q=hematology >) - ... Show all keywords - [cancer treatment](< /en/search?q=cancer treatment >) - [Comprehensive Cancer Center](< /en/search?q=Comprehensive Cancer Center >) Our Hematology Outpatient Clinic at the Comprehensive Cancer Center is available on referral and by appointment only. We offer diagnostics at a university hospital level, outpatient care, and clinical hematology specialization training. In addition to general hematology, our outpatient clinic offers appointments for stem cell transplantations and drug trials. We also provide training for physicians specialising in internal medicine, and operate the coordination center for stem cell transplantations. ## [ Maisa Portal (opens in new window, links to another website) ](https://www.maisa.fi/maisa/Authentication/Login?lang=britishenglish) Maisa.fi You can use our online services by signing in to the Maisa Portal. Once your treatment with us begins, you will receive information on the services you can access in Maisa. These include appointment booking and preliminary information forms, for example. Click here to go to Maisa's sign-in page  ## [ Care pathways for cancer ](/en/patient/treatments-and-examinations/cancer) The care pathways provide information about different cancers, diagnostic studies related to the disease, and the different stages of treatment at HUS. Read more about the care pathways for cancer  ## [ Patient Guide ](/en/patient/patient-guide) The Patient Guide site answer the most common questions you might have before, during and after treatment. See Patient Guide site here  ## Contact information and opening hours #### Visiting address Comprehensive Cancer Center Haartmaninkatu 4 Helsinki 5th floor #### Postal address P.O. Box 180 00029 HUS ### Fax [ Phone, Fax: 09 471 77283 ]() ### The contact center of the Comprehensive Cancer Center The operators will connect your call to the right professional either as a direct call or as a callback request. [ Phone, The contact center of the Comprehensive Cancer Center: 09 471 74900 ]()telephone hours: Mon–Fri 7:30–16:00 ## Find us here ### [ Comprehensive Cancer Center ](/en/patient/hospitals-and-other-units/comprehensive-cancer-center)  ## Unit's services ### [ Hematology ](/en/patient/treatments-and-examinations/hematology)  ### [ Support for people with cancer and those recovering from cancer ](/en/patient/treatments-and-examinations/support-people-cancer-and-those-recovering-cancer) ### [ Cancer treatment ](/en/patient/treatments-and-examinations/cancer-treatment)  ### [ Support for young adults with cancer ](/en/patient/treatments-and-examinations/support-young-adults-cancer)  ## Specialists ### [ Perttu Koskenvesa ](/en/person/perttu-koskenvesa) Chief Physician Comprehensive Cancer Center, Hematology ### [ Katariina Elomaa ](/en/person/katariina-elomaa) Nurse Manager Comprehensive Cancer Center, Solid Tumors ## Further information on this topic ### [ Instructions and additional information for cancer patients ](/en/patient/treatments-and-examinations/cancer/instructions-and-additional-information-cancer-patients) On this page you will find instructions, guides and useful links to support your cancer treatment. Updated: 10.09.2025 Print this page