SECTION 1: ARTHRITIS INTRODUCTION AND OVERVIEW 4 Introduction to Arthritis B. J. Manaster, MD, PhD, FACR

EROSIVE 10 Rheumatoid Arthritis of Axial Skeleton B. J. Manaster, MD, PhD, FACR 16 Rheumatoid Arthritis of Shoulder and Elbow B. J. Manaster, MD, PhD, FACR 22 Rheumatoid Arthritis of Wrist and Hand B. J. Manaster, MD, PhD, FACR 28 Rheumatoid Arthritis of Hip B. J. Manaster, MD, PhD, FACR 32 Rheumatoid Arthritis of Knee B. J. Manaster, MD, PhD, FACR 36 Rheumatoid Arthritis of Ankle and Foot B. J. Manaster, MD, PhD, FACR 40 Robust Rheumatoid Arthritis B. J. Manaster, MD, PhD, FACR 41 Felty Syndrome B. J. Manaster, MD, PhD, FACR 42 Juvenile Idiopathic Arthritis B. J. Manaster, MD, PhD, FACR 48 Adult Still Disease B. J. Manaster, MD, PhD, FACR

PRODUCTIVE 50 Osteoarthritis of Axial Skeleton B. J. Manaster, MD, PhD, FACR 54 DISH B. J. Manaster, MD, PhD, FACR 60 OPLL B. J. Manaster, MD, PhD, FACR 64 Rapidly Progressive Osteoarthritis 66 Osteoarthritis of Shoulder and Elbow B. J. Manaster, MD, PhD, FACR 70 Osteoarthritis of Wrist and Hand B. J. Manaster, MD, PhD, FACR 74 Osteoarthritis of Hip B. J. Manaster, MD, PhD, FACR 80 Osteoarthritis of Knee B. J. Manaster, MD, PhD, FACR MIXED EROSIVE AND PRODUCTIVE 86 Ankylosing Spondylitis B. J. Manaster, MD, PhD, FACR

92 Inflammatory Bowel Disease Arthritis B. J. Manaster, MD, PhD, FACR 98 Psoriatic Arthritis B. J. Manaster, MD, PhD, FACR 104 Chronic Reactive Arthritis B. J. Manaster, MD, PhD, FACR

DUE TO BIOCHEMICAL DISORDERS OR DEPOSITIONAL DISEASE

110 Gout Eva M. Escobedo, MD, B. J. Manaster, MD, PhD, FACR, and Kirkland W. Davis, MD, FACR 116 Pyrophosphate Arthropathy B. J. Manaster, MD, PhD, FACR 122 Hydroxyapatite Deposition Disease B. J. Manaster, MD, PhD, FACR 128 Amyloid Deposition B. J. Manaster, MD, PhD, FACR 134 Hemochromatosis B. J. Manaster, MD, PhD, FACR 135 Ochronosis B. J. Manaster, MD, PhD, FACR 136 Wilson Disease B. J. Manaster, MD, PhD, FACR 137 Oxalosis B. J. Manaster, MD, PhD, FACR

MISCELLANEOUS JOINT DISORDERS

138 Pigmented Villonodular Synovitis (PVNS) B. J. Manaster, MD, PhD, FACR 144 Intraarticular Chondroma B. J. Manaster, MD, PhD, FACR 148 Nodular Synovitis (Intraarticular) B. J. Manaster, MD, PhD, FACR 152 Multicentric Reticulohistiocytosis B. J. Manaster, MD, PhD, FACR 153 Synovial Vascular Malformation B. J. Manaster, MD, PhD, FACR 154 Synovial Chondromatosis B. J. Manaster, MD, PhD, FACR 160 Charcot (Neuropathic) B. J. Manaster, MD, PhD, FACR 166 Hypertrophic Osteoarthropathy B. J. Manaster, MD, PhD, FACR 172 Complex Regional Pain Syndr B. J. Manaster, MD, PhD, FACR

SECTION 2: OSSEOUS TUMORS AND TUMOR-LIKE CONDITIONS INTRODUCTION AND OVERVIEW

180 Bone Tumors: Diagnosis, Staging, and Biopsy B. J. Manaster, MD, PhD, FACR 188 Bone Tumors: Treatment Options and Follow-Up B. J. Manaster, MD, PhD, FACR BONE-FORMING TUMORS 194 Enostosis (Bone Island) B. J. Manaster, MD, PhD, FACR 198 Osteoma B. J. Manaster, MD, PhD, FACR 204 Osteoid Osteoma B. J. Manaster, MD, PhD, FACR 210 Osteoblastoma B. J. Manaster, MD, PhD, FACR 216 Conventional Osteosarcoma B. J. Manaster, MD, PhD, FACR 222 Parosteal Osteosarcoma B. J. Manaster, MD, PhD, FACR 228 Periosteal Osteosarcoma B. J. Manaster, MD, PhD, FACR 232 Telangiectatic Osteosarcoma B. J. Manaster, MD, PhD, FACR 236 Low-Grade Central Osteosarcoma B. J. Manaster, MD, PhD, FACR 240 High-Grade Surface Osteosarcoma B. J. Manaster, MD, PhD, FACR 242 Secondary Osteosarcoma B. J. Manaster, MD, PhD, FACR CARTILAGE-FORMING TUMORS 246 Enchondroma B. J. Manaster, MD, PhD, FACR 252 Osteochondroma B. J. Manaster, MD, PhD, FACR 258 Multiple Hereditary Exostoses B. J. Manaster, MD, PhD, FACR 264 Chondroblastoma B. J. Manaster, MD, PhD, FACR 268 Chondromyxoid Fibroma B. J. Manaster, MD, PhD, FACR 272 Periosteal Chondroma B. J. Manaster, MD, PhD, FACR 278 Chondrosarcoma B. J. Manaster, MD, PhD, FACR 284 Dedifferentiated Chondrosarcoma B. J. Manaster, MD, PhD, FACR 286 Periosteal Chondrosarcoma B. J. Manaster, MD, PhD, FACR 288 Clear Cell Chondrosarcoma B. J. Manaster, MD, PhD, FACR

MARROW TUMORS 290 Plasmacytoma B. J. Manaster, MD, PhD, FACR and Chris Hanrahan, MD, PhD 296 Multiple Myeloma Chris Hanrahan, MD, PhD 302 POEMS B. J. Manaster, MD, PhD, FACR 304 Ewing Sarcoma B. J. Manaster, MD, PhD, FACR 310 Leukemia: Osseous Manifestations B. J. Manaster, MD, PhD, FACR 314 Lymphoma of Bone B. J. Manaster, MD, PhD, FACR 320 Metastases: Bone Marrow B. J. Manaster, MD, PhD, FACR OTHER OSSEOUS TUMORS 326 Desmoplastic Fibroma B. J. Manaster, MD, PhD, FACR 330 Del_Liposclerosing Myxofibrous Tumor B. J. Manaster, MD, PhD, FACR 332 Undifferentiated Pleomorphic Sarcoma of Bone B. J. Manaster, MD, PhD, FACR 336 Fibrosarcoma B. J. Manaster, MD, PhD, FACR 338 Intraosseous Lipoma B. J. Manaster, MD, PhD, FACR 342 Giant Cell Tumor B. J. Manaster, MD, PhD, FACR 348 Adamantinoma B. J. Manaster, MD, PhD, FACR 352 Hemangioma: Intraosseous B. J. Manaster, MD, PhD, FACR 358 Epithelioid Hemangioma 362 Epithelioid Hemangioendothelioma of Bone B. J. Manaster, MD, PhD, FACR 364 Angiosarcoma: Osseous B. J. Manaster, MD, PhD, FACR 368 Chordoma B. J. Manaster, MD, PhD, FACR TUMOR-LIKE CONDITIONS 372 Paget Disease B. J. Manaster, MD, PhD, FACR 378 Langerhans Cell Histiocytosis B. J. Manaster, MD, PhD, FACR 384 Fibrous Dysplasia B. J. Manaster, MD, PhD, FACR 390 Osteofibrous Dysplasia B. J. Manaster, MD, PhD, FACR 396 Simple Bone Cyst B. J. Manaster, MD, PhD, FACR 402 Aneurysmal Bone Cyst B. J. Manaster, MD, PhD, FACR 408 Fibroxanthoma B. J. Manaster, MD, PhD, FACR

TUMORS BENIGN ADIPOCYTIC TUMORS 430 Lipoma: Soft Tissue Catherine C. Roberts, MD and B. J. Manaster, MD, PhD, FACR 436 Lipomatosis Catherine C. Roberts, MD 442 Lipomatosis: Nerve Catherine C. Roberts, MD and B. J. Manaster, MD, PhD, FACR 446 Macrodystrophia Lipomatosa Catherine C. Roberts, MD 450 Lipoma Arborescens: Knee Catherine C. Roberts, MD and B. J. Manaster, MD, PhD, FACR 454 Lipoblastoma/Lipoblastomatosis Catherine C. Roberts, MD 456 Hibernoma Catherine C. Roberts, MD 460 Parosteal Lipoma Catherine C. Roberts, MD and B. J. Manaster, MD, PhD, FACR INTERMEDIATE ADIPOCYTIC TUMORS 464 Atypical Lipomatous Tumor/Well-Differentiated Liposarcoma Catherine C. Roberts, MD MALIGNANT ADIPOCYTIC TUMORS 468 Myxoid Liposarcoma Catherine C. Roberts, MD and B. J. Manaster, MD, PhD, FACR 472 Pleomorphic Liposarcoma Catherine C. Roberts, MD 473 Dedifferentiated Liposarcoma Catherine C. Roberts, MD FIBROBLASTIC/MYOFIBROBLASTIC TUMORS BENIGN FIBROUS TUMORS 474 Nodular and Proliferative Fasciitis Catherine C. Roberts, MD

475 Bizarre Parosteal Osteochondromatous Proliferation Catherine C. Roberts, MD 476 Elastofibroma Catherine C. Roberts, MD 480 Fibrous Hamartoma of Infancy Catherine C. Roberts, MD 481 Myofibroma/Myofibromatosis Catherine C. Roberts, MD 482 Fibromatosis Colli Catherine C. Roberts, MD 483 Juvenile Hyaline Fibromatosis Catherine C. Roberts, MD 484 Fibroma of Tendon Sheath Catherine C. Roberts, MD 488 Desmoplastic Fibroblastoma Catherine C. Roberts, MD 490 Calcifying Aponeurotic Fibroma Catherine C. Roberts, MD 492 Myositis Ossificans/Heterotopic Ossification B. J. Manaster, MD, PhD, FACR INTERMEDIATE (LOCALLY AGGRESSIVE) FIBROUS TUMORS 498 Superficial Fibromatoses Catherine C. Roberts, MD 502 Desmoid-Type Fibromatosis Catherine C. Roberts, MD and B. J. Manaster, MD, PhD, FACR INTERMEDIATE (RARELY METASTASIZING) FIBROHISTIOCYTIC TUMORS 508 Solitary Fibrous Tumor and Hemangiopericytoma Catherine C. Roberts, MD and B. J. Manaster, MD, PhD, FACR 514 Inflammatory Myofibroblastic Tumor Catherine C. Roberts, MD 518 Infantile Fibrosarcoma Catherine C. Roberts, MD MALIGNANT FIBROUS TUMORS 520 Fibrosarcoma: Soft Tissue Catherine C. Roberts, MD 524 Myxofibrosarcoma Catherine C. Roberts, MD 528 Low-Grade Fibromyxoid Sarcoma Catherine C. Roberts, MD 530 Sclerosing Epithelioid Fibrosarcoma Catherine C. Roberts, MD 534 Dermatofibrosarcoma Protuberans Catherine C. Roberts, MD SO-CALLED FIBROHISTIOCYTIC TUMORS BENIGN FIBROHISTIOCYTIC TUMORS 538 Tenosynovial Giant Cell Tumor, Extraarticular Catherine C. Roberts, MD and B. J. Manaster, MD, PhD, FACR

544 Diffuse-Type Giant Cell Tumor (Extraarticular PVNS) Catherine C. Roberts, MD 546 Deep Benign Fibrous Histiocytoma Catherine C. Roberts, MD MALIGNANT FIBROHISTIOCYTIC TUMORS 548 Undifferentiated Pleomorphic Sarcoma With Prominent Inflammation Catherine C. Roberts, MD SMOOTH MUSCLE TUMORS SMOOTH MUSCLE TUMORS, BENIGN 550 Leiomyoma: Superficial and Deep Catherine C. Roberts, MD SMOOTH MUSCLE TUMORS, MALIGNANT 554 Leiomyosarcoma Catherine C. Roberts, MD and B. J. Manaster, MD, PhD, FACR PERICYTIC (PERIVASCULAR) TUMORS 560 Glomus Tumor Catherine C. Roberts, MD 564 Angioleiomyoma Catherine C. Roberts, MD SKELETAL MUSCLE TUMORS SKELETAL MUSCLE TUMORS, BENIGN 566 Rhabdomyoma Catherine C. Roberts, MD SKELETAL MUSCLE TUMORS, MALIGNANT 568 Rhabdomyosarcoma Catherine C. Roberts, MD VASCULAR AND LYMPHATIC TUMORS BENIGN VASCULAR TUMORS 574 Vascular Malformations Catherine C. Roberts, MD and B. J. Manaster, MD, PhD, FACR 580 Hemangioma 584 Angiomatosis Catherine C. Roberts, MD 586 Klippel-Trenaunay-Weber Syndrome Catherine C. Roberts, MD 590 Lymphangioma Catherine C. Roberts, MD INTERMEDIATE (RARELY METASTASIZING) VASCULAR TUMORS 594 Kaposi Sarcoma Catherine C. Roberts, MD 598 Hemangioendothelioma: Soft Tissue Catherine C. Roberts, MD

MALIGNANT VASCULAR TUMORS 600 Angiosarcoma: Soft Tissue B. J. Manaster, MD, PhD, FACR CHONDROOSSEOUS TUMORS 604 Chondroma: Soft Tissue Catherine C. Roberts, MD 606 Extraskeletal Mesenchymal Chondrosarcoma Catherine C. Roberts, MD 608 Extraskeletal Osteosarcoma Catherine C. Roberts, MD TUMORS OF UNCERTAIN DIFFERENTIATION BENIGN TUMORS OF UNCERTAIN DIFFERENTIATION 612 Phosphaturic Mesenchymal Tumor 614 Myxoma B. J. Manaster, MD, PhD, FACR INTERMEDIATE TUMORS (RARELY METASTASIZING) OF UNCERTAIN DIFFERENTIATION 620 Angiomatoid Fibrous Histiocytoma 622...