# Department of Oncology X-ray unit Keywords: - [Helsinki](< /en/search?q=Helsinki >) - [X-ray](< /en/search?q=X-ray >) - [mammography](< /en/search?q=mammography >) - ... Show all keywords - [computed tomography](< /en/search?q=computed tomography >) - [ultrasound examination](< /en/search?q=ultrasound examination >) - [procedures under ultrasound guidance](< /en/search?q=procedures under ultrasound guidance >) - [cancer](< /en/search?q=cancer >) - [cancer treatment](< /en/search?q=cancer treatment >) - [Comprehensive Cancer Center](< /en/search?q=Comprehensive Cancer Center >) In the Department of Oncology X-ray unit, we perform imaging examinations with an appointment. - The Oncology Outpatient Clinic will book you an appointment for the examination. - You will be informed of the appointment by letter. [Click here to go to Comprehensive Cancer Center's website.](/en/patient/hospitals-and-other-units/comprehensive-cancer-center/oncology-outpatient-clinic-c2-c5 "Oncology, Outpatient Clinic C2-C5, Comprehensive Cancer Center") ## We perform these examinations --- - Computed tomography - Mammography - Ultrasound examinations and procedures ## Arrival instructions --- - Our X-ray unit is located at the Comprehensive Cancer Center. [See the arrival instructions for Comprehensive Cancer Center](/en/patient/hospitals-and-other-units/comprehensive-cancer-center/arriving-comprehensive-cancer-center "Arriving to Comprehensive Cancer Center") ## Registration --- #### Computed tomography, 3rd floor - Register in the lobby on the ground floor at the self-registration kiosk or on the 8th floor at the X-ray unit's office with the department secretary. #### Mammography and ultra sound, 8th floor - Register on the 8th floor at the radiology office with the department secretary. ## Patient lift --- - We have access to a patient lift when needed, e.g., to transfer patients from a wheelchair to an examination table. - If you need a patient lift, please contact us in advance so we will have it ready for you. [More information about patient lifts](/en/patient/treatments-and-examinations/laboratories-and-imaging/patient-lifts "Patient lifts") ## [ You are free to choose your X-ray location ](/en/patient/treatments-and-examinations/laboratories-and-imaging/walk-x-ray-units) Once you receive a referral to HUS for skeletal, chest, or dental X-ray examinations, you are free to choose the imaging unit where you go for the examinations. Most X-ray units do not require booking an appointment. More information on walk-in X-ray locations  ## [ How do I prepare for examinations and where do I get the results? ](/en/patient/treatments-and-examinations/laboratories-and-imaging/information-patients-arriving-laboratory-and-medical-imaging-examinations) Examinations always require a referral. More information on the required preparations, arriving for examinations, and receiving the test results can be found here. Information for patients arriving for laboratory and imaging examinations  ## [ 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  ## Contact information and opening hours #### Visiting address Comprehensive Cancer Center Paciuksenkatu 3 Helsinki 3rd floor computed tomography 8th floor mammography and ultrasound [ Accessibility information (opens in new window, links to another website) ](https://palvelukartta.hel.fi/en/unit/26206?p=1&t=accessibilityDetails) #### Postal address P.O. Box 180 00290 Helsinki ### Office [ Phone, Office: 09 471 73214 ]() #### Opening hours Mon–Thu 7:30–20:30 Fri 7:30–15:30 Exceptions to opening hours The unit is closed on public holidays. ## Find us here ### [ Comprehensive Cancer Center ](/en/patient/hospitals-and-other-units/comprehensive-cancer-center)  ## Unit's services ### [ Imaging examinations and procedures ](/en/patient/treatments-and-examinations/imaging-examinations-and-procedures)  ### [ Patient instructions laboratories and imaging ](/en/patient/treatments-and-examinations/patient-instructions-laboratories-and-imaging)  ### [ Arrival instructions to medical imaging ](/en/patient/treatments-and-examinations/arrival-instructions-medical-imaging)  ### [ Cancer treatment ](/en/patient/treatments-and-examinations/cancer-treatment)  ### [ Medical Imaging Center's customer service ](/en/patient/treatments-and-examinations/medical-imaging-centers-customer-service)  Show all Updated: 16.01.2026 Print this page