Osteochondroma
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Osteochondroma
Musculoskeletal system
Autoimmune disorders
Bone disorders
Achondroplasia
Arthrogryposis
Cleidocranial dysplasia
Club foot
Craniosynostosis
Flat feet
Genu valgum
Genu varum
Pectus excavatum
Pigeon toe
Osteogenesis imperfecta
Osteomyelitis
Bone tumors
Bone tumors: Pathology review
Chondrosarcoma
Osteochondroma
Bone disorders: Pathology review
Lordosis, kyphosis, and scoliosis
Osteomalacia and rickets
Osteopetrosis
Osteoporosis
Osteosclerosis
Paget disease of bone
Connective tissue disorders
Genetic disorders
Inherited disorders
Injuries and trauma
Back pain: Pathology review
Degenerative disc disease
Sciatica
Spinal disc herniation
Spondylolisthesis
Spondylolysis
Compartment syndrome
Rhabdomyolysis
Achilles tendon rupture
Anterior cruciate ligament injury
Iliotibial band syndrome
Meniscus tear
Patellar tendon rupture
Patellofemoral pain syndrome
Sprained ankle
Unhappy triad
Carpal tunnel syndrome
Dislocated shoulder
Erb-Duchenne palsy
Klumpke paralysis
Radial head subluxation (Nursemaid elbow)
Rotator cuff tear
Thoracic outlet syndrome
Ulnar claw
Winged scapula
Joint disorders
Septic arthritis
Seronegative and septic arthritis: Pathology review
Ankylosing spondylitis
Calcium pyrophosphate deposition disease (pseudogout)
Gout
Gout and pseudogout: Pathology review
Juvenile idiopathic arthritis
Psoriatic arthritis
Reactive arthritis
Rheumatoid arthritis
Rheumatoid arthritis and osteoarthritis: Pathology review
Spondylitis
Seronegative and septic arthritis: Pathology review
Osteoarthritis
Spondylosis
Spinal stenosis
Bursitis
Baker cyst
Muscular disorders
Neuromuscular junction disorders
Assessments
Flashcards
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USMLE® Step 1 questions
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High Yield Notes
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Flashcards
Osteochondroma
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Questions
USMLE® Step 1 style questions USMLE
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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.