Osseous Tumors of the Fingers

The imaging features of the most common benign and malignant lesions of the fingers are presented.

Course ID: Q00434 Category:


Satisfaction Guarantee


Targeted CE per ARRT’s Discipline, Category, and Subcategory classification for enrollments starting after May 25, 2023:
[Note: Discipline-specific Targeted CE credits may be less than the total Category A credits approved for this course.]

Computed Tomography: 2.75
Procedures: 2.75
Head, Spine, and Musculoskeletal: 2.75

Magnetic Resonance Imaging: 1.50
Procedures: 1.50
Musculoskeletal: 1.50

Radiography: 1.50
Procedures: 1.50
Extremity Procedures: 1.50

Registered Radiologist Assistant: 2.75
Procedures: 2.75
Musculoskeletal and Endocrine Sections: 2.75

Sonography: 0.50
Procedures: 0.50
Superficial Structures and Other Sonographic Procedures: 0.50

Radiation Therapy: 2.75
Procedures: 2.75
Treatment Sites and Tumors: 2.75


  1. Introduction
  2. Imaging Modalities and Techniques
    1. Radiography
    2. Computed Tomography
    3. Ultrasonography
    4. MR Imaging
  3. Approach to Osseous Tumors of the Fingers
  4. Benign Lesions of the Fingers
    1. Enchondromas
    2. Multiple Enchondromatosis
    3. Periosteal Chondromas
    4. Osteochondromas
    5. Hereditary Multiple Exostoses
    6. Subungual Exostosis
    7. Florid Reactive Periostitis
    8. Bizarre Parosteal Osteochondromatous Proliferation
    9. Osteoid Osteomas
    10. Aneurysmal Bone Cysts
    11. Giant Cell Tumors
  5. Mimics of Primary Osseous Lesions
    1. Glomus Tumors
    2. Intraosseous Epidermal Inclusion Cysts
    3. Trauma, Infection, and Systemic Diseases
  6. Malignant Tumors
  7. Conclusion


Upon completion of this course, students will:

  1. know the prevalence of primary tumors of the hand and fingers
  2. be able to name the most common benign lesions of the fingers
  3. know which medical imaging modalities play a role in the diagnosis of lesions in the fingers and hands
  4. know what information radiography can provide when evaluating a finger lesion
  5. be able to describe which radiographic views are used to determine finger pathology
  6. know the proper positioning and exposure techniques for radiography of the fingers
  7. describe the role of CT in the evaluation of finger lesions
  8. be familiar with patient positioning for CT of the fingers and hand
  9. know the benefits of using contrast when performing a CT study of the fingers to determine whether a mass is cystic or solid
  10. describe what factors determine the appropriate choice of an ultrasound transducer to evaluate finger lesions
  11. understand the pitfalls of using MR imaging to evaluate finger lesions
  12. understand proper coil selection for MR imaging of the fingers
  13. understand patient positioning for MR imaging of the fingers
  14. be familiar with the typical MR scan protocols for imaging of the fingers
  15. know what other name multiple enchondromatosis goes by
  16. understand the complications that can arise with multiple enchondromas
  17. describe a periosteal chondroma of the finger
  18. know the radiographic and CT appearance of a periosteal chondroma
  19. describe an ostechondorama of the finger and its potential complications
  20. know the two distinctive radiographic appearances of an osteochondroma
  21. know which medical imaging modality is superior for the evaluation of an osteochondroma
  22. explain what factors are indicative of a finger exotosis that may be suggestive of malignant transformation
  23. know what other name hereditary multiple exostoses go by
  24. describe subungual exostoses and its alternative name
  25. know the radiographic appearance of subungual exostoses
  26. know the typical age group affected by florid reactive periostitis
  27. describe parosteal osteochondromatous proliferation
  28. describe the radiographic and MR appearance of parosteal osteochondromatous proliferation
  29. describe osteoid osteomas and what percentage of bone tumors they make up
  30. understand the nidus component of an osteoid stoma and how it appears on MR imaging
  31. describe giant cell tumors of the fingers and what percentage of them are malignant
  32. understand the appearance of giant cell tumors of the fingers on CT and MR
  33. know what a glomus tumor of the hands is and what percentage of hand tumors they make up
  34. be familiar with the radiographic and MR appearance of epidermal inclusion cysts
  35. describe the radiographic and CT appearance of phalangeal chondrosarcomas