Osteochondroma
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Osteochondroma
Musculoskeletal system
Congenital disorders
Degenerative and metabolic disorders
Degenerative disc disease
Legg-Calve-Perthes disease
Osgood-Schlatter disease (traction apophysitis)
Osteomalacia and rickets
Osteopetrosis
Osteoporosis
Osteosclerosis
Paget disease of bone
Spinal disc herniation
Spinal stenosis
Spondylolisthesis
Spondylolysis
Spondylosis
Calcium pyrophosphate deposition disease (pseudogout)
Gout
Osteoarthritis
Compartment syndrome
Rhabdomyolysis
Infectious, immunologic, and inflammatory disorders
Ankylosing spondylitis
Antiphospholipid syndrome
Dermatomyositis
Juvenile idiopathic arthritis
Limited systemic sclerosis (CREST syndrome)
Mixed connective tissue disease
Polymyositis
Psoriatic arthritis
Raynaud phenomenon
Reactive arthritis
Rheumatoid arthritis
Scleroderma
Sjogren syndrome
Systemic lupus erythematosus
Osteomyelitis
Septic arthritis
Spondylitis
Baker cyst
Bursitis
Iliotibial band syndrome
Inclusion body myopathy
Patellofemoral pain syndrome
Polymyalgia rheumatica
Temporomandibular joint dysfunction
Transient synovitis
Traumatic and mechanical disorders
Lordosis, kyphosis, and scoliosis
Sciatica
Achilles tendon rupture
Anterior cruciate ligament injury
Meniscus tear
Patellar tendon rupture
Slipped capital femoral epiphysis
Sprained ankle
Unhappy triad
Carpal tunnel syndrome
Erb-Duchenne palsy
Klumpke paralysis
Sciatica
Thoracic outlet syndrome
Ulnar claw
Winged scapula
Dislocated shoulder
Radial head subluxation (Nursemaid elbow)
Rotator cuff tear
Other disorders
Musculoskeletal system pathology review
Bone disorders: Pathology review
Gout and pseudogout: Pathology review
Muscular dystrophies and mitochondrial myopathies: Pathology review
Pediatric musculoskeletal disorders: Pathology review
Myalgias and myositis: Pathology review
Rheumatoid arthritis and osteoarthritis: Pathology review
Scleroderma: Pathology review
Seronegative and septic arthritis: Pathology review
Sjogren syndrome: Pathology review
Systemic lupus erythematosus (SLE): Pathology review
Bone tumors: Pathology review
Back pain: Pathology review
Assessments
Flashcards
0 / 9 complete
USMLE® Step 1 questions
0 / 1 complete
High Yield Notes
4 pages
Flashcards
Osteochondroma
0 of 9 complete
Questions
USMLE® Step 1 style questions USMLE
0 of 1 complete
A 14-year-old boy comes to the clinic with his parents due to knee pain. During the past few months, the patient noticed a non-painful bump on the right knee that has progressively grown in size. Last week, he fell on the same location and endorses pain at the site. Vitals are within normal limits. On physical examination, a bony bump is noted on the right knee with overlying lacerated skin and crusted blood. The patient is able to bear weight without pain. The range of motion is full, strength is 5/5, and sensation is intact. A CT of the knee is obtained and shown below:
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The patient is prepared for surgery. Which of the following is most likely to be found on pathohistological examination of this patient’s lesion?
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The patient is prepared for surgery. Which of the following is most likely to be found on pathohistological examination of this patient’s lesion?
External References
First Aid
2024
2023
2022
2021
Osteochondroma p. 469
Summary
Osteochondromas is a common benign bone tumor developing in the epiphysis of a long bone. It is characterized by cartilage-capped bony outgrowth (exostoses) on the surface of bones. Osteochondromas most commonly affect long bones in the leg, pelvis, or scapula. Even though it's a benign tumor, it can present with complications like pathologic fractures, bone malformation, or compression of nearby neurovascular structures.