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.DICOM File Extension

File TypeDICOM Image File

2.9 (15 Votes)
CategoryRaster Image Files

What is a DICOM file?

A DICOM file is an image saved in the Digital Imaging and Communications in Medicine (DICOM) format. It contains an image from a medical scan, such as an ultrasound or MRI. DICOM files may also include identification data for patients to link the image to a specific individual.

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Screenshot of a .dicom file in MicroDicom viewer 3.8
DICOM file open in MicroDicom viewer 3.8

The DICOM format was developed by the National Electrical Manufacturers Association (NEMA). It was designed to exchange and view medical images, such as CT scans, MRIs, and ultrasound images.

The initial DICOM standard was initially released in 1983 and went through various revisions in the 1990s and 2000s. NEMA still actively maintains the format.

NOTE: DICOM images more commonly use the .DCM extension.

How do I open a DICOM file?

You can open DICOM files with various applications, such as MicroDicom viewer (Windows), ezDICOM (Windows), OsiriX (macOS), and MeVisLab (multiplatform). You can also upload DCM files to View My Scans and Jack Imaging in a web browser and view the images.

Open and view .DICOM files with File Viewer Plus.

Programs that open DICOM files

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Updated 3/11/2021

About DICOM Files

Our goal is to help you understand what a file with a *.dicom suffix is and how to open it.

The DICOM Image file type, file format description, and Mac, Windows, and Linux programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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