Musculoskeletal Radiology — Flashcards

Flashcard 31: Investigation of choice for AVN is _____

Answer: MRI

Flashcard 32: X-ray of a necrotic bone or AVN shows increased _____

Answer: density

Flashcard 33: What is the earliest radiological feature of rheumatoid arthritis?_____

Answer: Juxta-articular osteopenia

Flashcard 34: Thickened and sclerotic iliopectineal line, also known as Brim sign is seen in _____

Answer: Paget's disease of bone

Flashcard 35: The glenoid fossa looks empty as the humeral head has moved away from it, in _____ sign for posterior humeral dislocation

Answer: vacant glenoid

Flashcard 36: Insall-Salvati ratio is calculated as:_____

Answer: TL/PL

Flashcard 37: _____ is an imaging study of choice to identify the occult femoral neck fractures.

Answer: MRI

Flashcard 38: Changes in necrotic bone or AVN are seen on radiography at _____ weeks

Answer: 6-8

Flashcard 39: Radiological features of scurvy: Bleeding under the periosteum (_____)

Answer: Subperiosteal hemorrhage

Extra: Subperiosteal hemorrhage is a characteristic feature of scurvy. Upon healing, it calcifies and leads to extensive periosteal reaction. Note: Hemarthrosis (bleeding into joints) is rare in scurvy, which is a key point used to differentiate it from hemophilia in exams.

Flashcard 40: A patient on prolonged bisphosphonates with suspicion of atypical femur fractures should be diagnosed with a _____

Answer: simple x-ray