Pearls and Pitfalls in Musculoskeletal Imaging

Variants and Other Difficult Diagnoses

D. Lee Bennett, Georges Y. El-Khoury

• Publisher: Cambridge University Press
• Year: 2013
• Print ISBN: 9780521196321
• eBook ISBN: 9781107069145
• Topic: Medicine
• Subtopic: Radiology, Radiotherapy & Nuclear Medicine

When a radiological image includes unfamiliar features, how do you decide whether it is normal variation or pathological abnormality? If you decide an abnormality is present, can you make a diagnosis from the image alone? Pearls and Pitfalls in Musculoskeletal Imaging differentiates less common findings or normal variant mimickers from the more common similar appearing diseases, helping you make a quick and accurate diagnosis. Musculoskeletal disorders of the shoulder, upper extremity, pelvis, and lower extremity are described in over 90 cases, highly illustrated with over 300 radiographic, CT, MRI and ultrasound images. Each case follows a standard format: imaging description, importance, typical clinical scenario, differential diagnosis and teaching point, enabling you to locate key information quickly. Pearls and Pitfalls in Musculoskeletal Imaging will help you spot artifacts, mimics and other unusual conditions, enabling you to avoid misdiagnosis and prevent mismanagement. An essential diagnostic tool for radiologists at every level.

Table of contents

• Contents
• Contributors
• Foreword
• Preface
• Case 1 Pseudocyst of the humeral head
• Case 2 SLAP tear versus sublabral foramen/recess
• Case 3 SLAP tear versus normal variant of biceps labral complex
• Case 4 Labral tear versus hyaline cartilage undercutting
• Case 5 Buford complex of the shoulder
• Case 6 Pseudosubluxation of the shoulder
• Case 7 Posterior dislocation of the shoulder
• Case 8 Avulsion fracture of the greater tuberosity
• Case 9 Parsonage-Turner versus quadrilateral space syndrome
• Case 10 ABER positioning during MR arthrogram: anterior labral tears
• Case 11 Os acromiale
• Case 12 Hill-Sachs injury versus normal flattening of posterolateral humeral head
• Case 13 Red marrow versus tumor in the proximal humeral shaft
• Case 14 Kim's lesion
• Case 15 Internal impingement of the shoulder
• Case 16 Supracondylar process: ligament of Struthers
• Case 17 Ball-thrower's fracture: not a pathological fracture
• Case 18 Cortical irregularities of the proximal humerus: pseudotumor humeri
• Case 19 Pseudodefect of the capitellum versus osteochondral defect
• Case 20 Pseudodefect of the trochlear groove versus fracture
• Case 21 Transverse trochlear ridge versus osteophyte or post-traumatic deformity
• Case 22 FABS positioning on MRI: demonstration of distal biceps tear
• Case 23 Ulnar collateral ligament tear versus normal recess of the elbow
• Case 24 T-sign of undersurface partial tear of the ulnar collateral ligament
• Case 25 Lateral ulnar collateral ligament tears
• Case 26 Locations and evaluation of loose bodies in the elbow joint
• Case 27 Osteochondritis dissecans of the elbow: stable versus unstable
• Case 28 Little Leaguer's elbow: what is it?
• Case 29 Pseudocyst of the radial tuberosity
• Case 30 Unstable fracture/dislocations of the forearm
• Case 31 Cat scratch disease: medial epitrochlear lymphadenopathy and pustules of the forearm
• Case 32 Pseudotear of the triangular fibrocartilage (TFC): radial cartilage
• Case 33 Triangular fibrocartilage (TFC): tear versus fenestration
• Case 34 Occult carpal fractures: imaging work-up
• Case 35 Carpal instability: are you looking at a true lateral view of the wrist?
• Case 36 Extensor carpi radialis brevis and longus: synovial fluid versus tenosynovitis
• Case 37 Lunotriquetral carpal coalition: incidental finding
• Case 38 Skier's thumb and Stener lesion
• Case 39 Bennett versus Rolando fracture
• Case 40 Mallet finger
• Case 41 Volar plate injuries of the finger
• Case 42 Subungual glomus tumor of the distal phalanges
• Case 43 Normal muscle variants versus mass in the hand
• Case 44 Painful intraosseous hand enchondroma: pathologic fracture
• Case 45 Femoroacetabular impingement: cam- versus pincer-type
• Case 46 Snapping hip
• Case 47 Labral tear versus cleft versus labral recess
• Case 48 Transient bone marrow edema of the hip (transient osteoporosis) versus osteonecrosis
• Case 49 Hip fractures in the elderly
• Case 50 Insufficiency fractures of the pelvis
• Case 51 Mild-to-moderate acetabular maldevelopment in the adult hip
• Case 52 Calcific tendinitis of the hip
• Case 53 Hip arthroplasty: periprosthetic fracture in the femur
• Case 54 Linea aspera versus periostitis of the femur
• Case 55 Morel-Lavallée lesion
• Case 56 Intraneural ganglion cyst of the peroneal nerve
• Case 57 Tibial bowing: intrauterine deformation versus neurofibromatosis
• Case 58 Osteofibrous dysplasia and other cystic lesions of the anterior tibial cortex
• Case 59 Less common stress fractures of the tibia and fibula
• Case 60 Posterior impingement
• Case 61 Haglund's syndrome
• Case 62 Accessory anterolateral facet of the talus
• Case 63 Maisonneuve fracture
• Case 64 Triplane fracture
• Case 65 Peroneal tendon dislocation and calcaneal fractures
• Case 66 Anterior impingement
• Case 67 Peroneocalcaneus internus muscle: false flexor hallucis longus (FHL)
• Case 68 Accessory soleus muscle: a differential for posteromedial ankle mass
• Case 69 Xanthoma of the Achilles tendon
• Case 70 Master knot of Henry
• Case 71 Tarsal tunnel syndrome
• Case 72 Great toe sesamoids: osteonecrosis versus stress fracture
• Case 73 Lisfranc fracture/dislocation
• Case 74 Navicular stress fracture: importance of advanced imaging
• Case 75 Intraosseous lipoma
• Case 76 Lipoma arborescens
• Case 77 Liposarcoma
• Case 78 Mazabraud syndrome
• Case 79 Neurofibromatosis type I (NF I)
• Case 80 Benign peripheral nerve sheath tumors (PNSTs)
• Case 81 Malignant peripheral nerve sheath tumors (MPNSTs)
• Case 82 Synovial sarcoma
• Case 83 Aggressive fibromatosis (desmoid tumor)
• Case 84 Chondrosarcoma
• Case 85 Pigmented villonodular synovitis (PVNS)
• Case 86 Synovial chondromatosis (osteochondromatosis)
• Case 87 Myositis ossificans
• Case 88 Aneurysmal bone cyst (ABC)
• Case 89 Soft tissue hemangioma
• Case 90 Giant cell tumor (GCT)
• Case 91 Ganglion cyst
• Case 92 Chondroblastoma
• Case 93 Hypertrophic osteoarthropathy
• Case 94 SAPHO syndrome
• Index