Diagnostic Pathology: Thoracic

SECTION 1: LUNG NEOPLASMS, BENIGN 4 Congenital Peribronchial Myofibroblastic Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 6 Fetal Lung Interstitial Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 8 Mucous Gland Adenoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 12 Ciliated Muconodular Papillary Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 14 Alveolar Adenoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 18 Sclerosing Pneumocytoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 24 Cartilaginous Hamartoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 28 Endobronchial Lipoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 30 Pulmonary Adenofibroma/Adenomyoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 34 Glomus Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 36 Pulmonary Paraganglioma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 40 Pulmonary Meningioma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 44 Minute Pulmonary Meningothelial-Like Nodule David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 48 Granular Cell Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 50 Langerhans Cell Histiocytosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 54 Erdheim-Chester Disease David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 58 Clear Cell Sugar Tumor (PEComa) David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 62 Lymphangioleiomyomatosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD NEOPLASMS, MALIGNANT, PRIMARY ADENOCARCINOMA 66 Overview of Malignant Epithelial Neoplasms of Lung David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 70 Conventional Adenocarcinoma Mari Mino-Kenudson, MD, David I. Suster, MD, and Saul Suster, MD 82 Lepidic Predominant Adenocarcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 84 Invasive Mucinous Adenocarcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 88 Colloid Adenocarcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 92 Fetal Adenocarcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 96 Enteric-Type Adenocarcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 98 Other Adenocarcinoma Variants David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 102 Adenosquamous Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD SQUAMOUS CELL CARCINOMA 106 Conventional Squamous Cell Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 112 Basaloid/Small Cell Variant of Squamous Cell Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 116 Lymphoepithelioma-Like Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD NEUROENDOCRINE CARCINOMA AND PRECURSOR LESIONS 120 Overview of Neuroendocrine Neoplasms David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 124 Pulmonary Tumorlet and Diffuse Idiopathic Pulmonary Neuroendocrine Cell Hyperplasia David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 126 Low-Grade Neuroendocrine Carcinoma (Typical Carcinoid Tumor) David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 132 Intermediate-Grade Neuroendocrine Carcinoma (Atypical Carcinoid Tumor) David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 136 High-Grade Neuroendocrine Carcinoma, Small Cell Type David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 140 High-Grade Neuroendocrine Carcinoma, Large Cell Type David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD POORLY DIFFERENTIATED NON-SMALL CELL CARCINOMAS 144 Overview of Poorly Differentiated Non-Small Cell Carcinomas David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 146 Large Cell Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 148 Pleomorphic Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 152 Spindle Cell Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 156 Carcinosarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 160 Pulmonary Blastoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 164 SMARCA4-Deficient Undifferentiated Tumors David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 168 NUT Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD SALIVARY GLAND-TYPE TUMORS 170 Adenoid Cystic Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 176 Mucoepidermoid Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 182 Epithelial-Myoepithelial Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 186 Acinic Cell Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 190 Mixed Tumor (Pleomorphic Adenoma) David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 194 Myoepithelial Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD MESENCHYMAL NEOPLASMS 198 Pleuropulmonary Blastoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 202 Primary Pulmonary Myxoid Sarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 204 Intrapulmonary Solitary Fibrous Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 208 Leiomyosarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 212 Intrapulmonary Synovial Sarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 218 Malignant Peripheral Nerve Sheath Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 222 Osteosarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 226 Chondrosarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 230 Epithelioid Hemangioendothelioma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 238 Angiosarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 242 Kaposi Sarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 246 Intimal Sarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD Suster, MD 266 Hodgkin Lymphoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 270 Plasmacytoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 272 Lymphomatoid Granulomatosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD OTHER RARE TUMORS AND BENIGN PSEUDOTUMORAL CONDITIONS 278 Inflammatory Myofibroblastic Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 282 Intrapulmonary Thymoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 286 Ganglioneuroblastoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 290 Primary Pulmonary Melanoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 294 Juvenile Xanthogranuloma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 298 Hyalinizing Granuloma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 302 Metastatic/Dendriform Calcification David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 306 Lipoid Pneumonia (Paraffinoma) David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 308 Placental Transmogrification David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 312 Rosai-Dorfman Disease David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 316 Epithelioid Hemangioma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD NEOPLASMS, METASTATIC 318 Benign Metastasizing Leiomyoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 322 Metastatic Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 334 Metastatic Sarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 344 Metastatic Malignant Melanoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD NONNEOPLASTIC AND SYSTEMIC CONDITIONS 352 Diffuse Alveolar Damage David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 356 Acute Fibrinous and Organizing Pneumonia David I. Suster, MD 358 Organizing Pneumonia David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 362 Eosinophilic Pneumonia David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 366 Respiratory Bronchiolitis Interstitial Lung Disease David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 368 Other Smoking-Related Changes David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 370 Desquamative Interstitial Pneumonia David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 374 Usual Interstitial Pneumonia David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 380 Nonspecific Interstitial Pneumonia David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 384 Granulomatous-Lymphocytic Interstitial Lung Disease David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 388 Pleuroparenchymal Fibroelastosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 390 Hypersensitivity Pneumonitis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 394 Bronchocentric Granulomatosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 396 Sarcoidosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 400 IgG4 Sclerosing Lung Disease David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 404 Pulmonary Amyloidosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 408 Light Chain Deposition Disease (Pseudoamyloid) Saul Suster, MD 412 Diffuse Alveolar Hemorrhage With and Without Capillaritis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 414 Granulomatosis With Polyangiitis (Wegener Granulomatosis) David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 418 Eosinophilic Granulomatosis With Polyangiitis (Churg-Strauss) David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 422 Microscopic Polyangitis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 424 Pulmonary Veno-Occlusive Disease / Pulmonary Capillary Hemangiomatosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 428 Idiopathic Pulmonary Hemosiderosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 430 Hard Metal Pneumoconiosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 432 Asbestos-Related Interstitial Fibrosis/Asbestosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 436 E-Cigarette and Vaping-Associated Lung Injury David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 438 Alveolar Proteinosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 442 Alveolar Microlithiasis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 446 Congenital Pulmonary Airway Malformations David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD PARASITIC DISORDERS 450 Strongyloidiasis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 454 Dirofilariasis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 458 Schistosomiasis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 460 Echinococcosis (Hydatid Cyst) David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 462 Paragonimiasis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD INFECTIOUS DISEASES 464 Cryptococcosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 468 Coccidioidomycosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 472 Pneumocystosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 476 Blastomycosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 478 Histoplasmosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 482 Tuberculosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 486 Herpes Simplex Virus David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 490 Cytomegalovirus David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 492 Adenovirus David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 494 Measles Pneumonia David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 498 Sporotrichosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 500 Klebsiella Pneumonia David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 504 Legionnaires Disease David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 506 SARS Pneumonia David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 512 Nocardiosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 514 Actinomycosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 516 Aspergillosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 522 Mucormycosis (Zygomycosis) David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 524 Botryomycosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 526 Malakoplakia David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD SECTION 2: PLEURA NEOPLASMS, BENIGN 532 Mesothelial Hyperplasia David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 534 Solitary Fibrous Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 542 Calcified Fibrous Pseudotumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD NEOPLASMS, MALIGNANT, PRIMARY MESOTHELIAL NEOPLASMS 546 Malignant Mesothelioma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 558 Well-Differentiated Papillary Mesothelioma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD OTHER MALIGNANT NEOPLASMS 562 Mucoepidermoid Carcinoma of Pleura David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 566 Angiosarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 572 Synovial Sarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 578 Smooth Muscle Tumors of Pleura David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 582 Desmoplastic Small Round Cell Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 586 Primary Effusion Lymphoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD EPITHELIAL NEOPLASMS 588 Overview of Malignant Pleural Neoplasms David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD OTHER LESIONS OF PLEURA 590 Pleuropulmonary Endometriosis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD SECTION 3: MEDIASTINUM NEOPLASMS, BENIGN 596 Lymphangioma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 600 Hemangioma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 604 Paraganglioma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 608 Schwannoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 612 Neurofibroma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD NEOPLASMS, MALIGNANT, PRIMARY EPITHELIAL NEOPLASMS 616 Overview of Malignant Thymic Neoplasms David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 618 Thymoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 634 Atypical Thymoma (Type B3 Thymoma) David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 642 Thymic Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 652 Neuroendocrine Carcinomas of Thymus David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD GERM CELL TUMORS 660 Mediastinal Teratoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 666 Mediastinal Seminoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 670 Yolk Sac Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 676 Choriocarcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 680 Embryonal Carcinoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD HEMATOPOIETIC MALIGNANCIES 684 Hodgkin Lymphoma of Mediastinum David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 692 Diffuse Large Cell Lymphoma of Mediastinum David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 706 Lymphoblastic Lymphoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 712 MALT Lymphoma of Thymus David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD MESENCHYMAL NEOPLASMS 716 Liposarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 724 Leiomyosarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 728 Synovial Sarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 740 Malignant Peripheral Nerve Sheath Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 746 Solitary Fibrous Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 754 Epithelioid Hemangioendothelioma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 762 Mesenchymal Chondrosarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 766 Chordoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 772 Alveolar Soft Part Sarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 776 Rhabdomyosarcoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD SYMPATHETIC NERVOUS SYSTEM TUMORS 780 Ganglioneuroma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 784 Neuroblastoma/Ganglioneuroblastoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 790 Ependymoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD OTHER TUMORS 794 Ectopic Parathyroid Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 798 Ectopic Thyroid Tumor David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD OTHER BENIGN/REACTIVE CONDITIONS 802 Thymolipoma David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 806 Castleman Disease David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 812 Simple (Benign) Mediastinal Cysts David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 818 Acquired Multilocular Thymic Cyst David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD 826 Idiopathic Sclerosing Mediastinitis David I. Suster, MD, Mari Mino-Kenudson, MD, and Saul Suster, MD