Preparation for the Oncology Portion of the OITE Examination

Introduction

Orthopedic residents will answer approximately 190 OITE questions during their training.  This represents approximately 27 of the 250 total questions per year, or 10% of all OITE questions. This learning module outlines the tumors and entities that are most likely to appear on the OITE exam, based on data from past exams.

Summary

This learning module outlines the tumors and entities that are most likely to appear on the OITE exam, based on data from past exams.

Topic Presentation

Malignant tumors are tested more commonly than benign tumors (1.2:1), an since there are fewer types of malignant tumors, studying them will likely be the best use of limited time resources. To do well, the candidate should be familiar with the entities shown in the tables below.  Most questions require recall of a specific tumor, or diagnosis of a tumor based on images and pathology.  A few questions test a candidate's knowledge of the best treatment of the tumor.

This table shows the tumors that appear commonly.  See citation below table.

Table 2
Entities tested two or more times
Malignant Test year
2002 2003 2004 2005 2006 Total
Metastasis 1 4 1 5 1 12
Osteosarcoma 2 3 3 0 5 13
Ewing’s sarcoma 2 3 1 0 3 9
Chondrosarcoma 2 2 2 2 0 8
Synovial sarcoma 0 1 2 3 0 6
Paget’s sarcoma 0 0 1 0 1 2
Lymphoma 0 1 1 0 0 2
Benign            
Giant cell tumor 2 1 1 2 3 9
Osteomyelitis 3 1 0 2 1 7
Fibrous dysplasia 1 2 0 0 1 4
Soft tissue hemangioma 1 0 1 1 1 4
Paget’s disease 2 1 0 0 0 3
Osteochondroma 0 1 0 1 0 2
Unicameral bone cyst 0 1 1 0 0 2
Synovial chondromatosis 0 1 1 0 0 2
Pigmented villonodular synovitis 0 1 1 0 0 2
Enchondroma 1 1 0 0 0 2
Avulsive cortical irregularity 1 0 0 0 1 2
Osteofibrous dysplasia 1 0 0 0 1 2
Multiple hereditary exostosis 0 0 0 0 2 2
Clin Orthop Relat Res. 2008 June; 466(6): 1323–1328.
 
This table shows the less common lesions.
 
Table 3
Benign and malignant entities tested a single time over a five year period
Benign Malignant
Elastofibroma Adamantinoma
Bone hemangioma Rhabdomyosarcoma
Enostosis Liposarcoma
Tumoral calcinosis Squamous cell carcinoma
Schwannoma Malignant peripheral nerve sheath tumor
Heterotopic ossification Dedifferentiated chondrosarcoma
Granuloma annulare  
Popliteal cyst (child)  
Maffucci’s syndrome  
Nonossifying fibroma  
Chondroblastoma  
Osteopetrosis  
Neurofibroma  
Clin Orthop Relat Res. 2008 June; 466(6): 1323–1328.