SECTION 1: NASAL CAVITY ANDPARANASAL SINUSES 4 Nose and Paranasal Sinuses Lester D. R. Thompson, MD and Jonathan B. McHugh, MD CONGENITAL/GENETIC/HEREDITARY 6 Nasal Neuroglial Heterotopia Lester D. R. Thompson, MD 8 Nasal Dermoid Cyst and Sinus Lester D. R. Thompson, MD INFECTIOUS 10 Allergic Fungal Sinusitis Lester D. R. Thompson, MD 14 Invasive Fungal Rhinosinusitis Lester D. R. Thompson, MD 16 Mycetoma Lester D. R. Thompson, MD 17 Rhinoscleroma Lester D. R. Thompson, MD 18 Rhinosporidiosis Lester D. R. Thompson, MD 20 Mycobacterium lepraeInfection Lester D. R. Thompson, MD INFLAMMATORY-IMMUNE DYSFUNCTION 22 Chronic Rhinosinusitis Brenda L. Nelson, DDS, MS 26 Granulomatosis With Polyangiitis Susan Muller, DMD, MS 32 Eosinophilic Angiocentric Fibrosis Lester D. R. Thompson, MD REACTIVE AND HAMARTOMAS 36 Sinonasal Inflammatory Polyp Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 40 Antrochoanal Polyp Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 42 Mucocele of Paranasal Sinus Lester D. R. Thompson, MD 44 Sinonasal Hamartoma Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 50 Nasal Chondromesenchymal Hamartoma Lester D. R. Thompson, MD 52 Extranodal Sinus Histiocytosis With Massive Lymphadenopathy Susan Muller, DMD, MS 56 Myospherulosis Lester D. R. Thompson, MD BENIGN NEOPLASM 58 Sinonasal Papilloma Lester D. R. Thompson, MD 66 Pleomorphic Adenoma, Sinonasal Tract Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 68 Meningioma, Sinonasal Tract Lester D. R. Thompson, MD 72 Ameloblastoma, Sinonasal Tract Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 74 Ectopic Pituitary Neuroendocrine Tumor Lester D. R. Thompson, MD 80 Lobular Capillary Hemangioma (Pyogenic Granuloma) Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 84 Sinonasal Tract Angiofibroma Lester D. R. Thompson, MD 88 Schwannoma/Neurofibroma, Sinonasal Tract Lester D. R. Thompson, MD 92 Leiomyoma and Smooth Muscle Tumors of Uncertain Malignant Potential Lester D. R. Thompson, MD 96 Fibromatosis/Desmoid-Type Fibromatosis Lester D. R. Thompson, MD 98 Solitary Fibrous Tumor, Sinonasal Tract Lester D. R. Thompson, MD BORDERLINE NEOPLASM 102 Glomangiopericytoma Lester D. R. Thompson, MD MALIGNANT NEOPLASM 106 Squamous Cell Carcinoma, Sinonasal Tract Lester D. R. Thompson, MD 114 NUT Carcinoma Lester D. R. Thompson, MD 116 SWI/SNF Complex-Deficient Sinonasal Carcinomas Lester D. R. Thompson, MD 120 Lymphoepithelial Carcinoma, Sinonasal Tract Susan Muller, DMD, MS 122 Sinonasal Undifferentiated Carcinoma Susan Muller, DMD, MS 128 Teratocarcinosarcoma Lester D. R. Thompson, MD 134 HPV-Related Multiphenotypic Sinonasal Carcinoma Lester D. R. Thompson, MD 138 Sinonasal Adenocarcinoma, Intestinal Type Lester D. R. Thompson, MD 144 Sinonasal Nonintestinal-Nonsalivary Adenocarcinoma Lester D. R. Thompson, MD 152 Sinonasal Renal Cell-Like Adenocarcinoma Lester D. R. Thompson, MD 154 Olfactory Neuroblastoma Lester D. R. Thompson, MD 164 Sinonasal Neuroendocrine Carcinoma Lester D. R. Thompson, MD 170 Mucosal Melanoma, Sinonasal Tract Lester D. R. Thompson, MD 176 Alveolar Rhabdomyosarcoma, Sinonasal Tract Lester D. R. Thompson, MD 182 Ewing Sarcoma, Including Sinonasal Adamantinoma-Like Lester D. R. Thompson, MD 188 Biphenotypic Sinonasal Sarcoma Lester D. R. Thompson, MD 192 Leiomyosarcoma, Sinonasal Tract Lester D. R. Thompson, MD 198 Malignant Peripheral Nerve Sheath Tumor, Sinonasal Tract Lester D. R. Thompson, MD 202 Fibrosarcoma, Sinonasal Tract Lester D. R. Thompson, MD 206 Angiosarcoma, Sinonasal Tract Lester D. R. Thompson, MD 210 Mesenchymal Chondrosarcoma, Sinonasal Tract Lester D. R. Thompson, MD 212 Undifferentiated Pleomorphic Sarcoma, Sinonasal Tract Lester D. R. Thompson, MD 216 Extranodal NK-/T-Cell Lymphoma, Nasal Type Aaron Auerbach, MD, MPH 222 Metastatic/Secondary Tumors, Sinonasal Tract Lester D. R. Thompson, MD SPECIMEN EXAMINATION, NASAL CAVITY & PARANASAL SINUSES 224 Specimen Examination and Staging Tools, Oropharynx Lester D. R. Thompson, MD 228 Specimen Examination and Staging Tools, Nasopharynx Lester D. R. Thompson, MD SECTION 2: PHARYNX (NASAL, HYPO-) 234 Pharynx Lester D. R. Thompson, MD and Jonathan B. McHugh, MD CONGENITAL/GENETIC/HEREDITARY 236 Tornwaldt Cyst Lester D. R. Thompson, MD 237 Rathke Cleft Cyst Lester D. R. Thompson, MD BENIGN NEOPLASM 238 Dermoid Brenda L. Nelson, DDS, MS MALIGNANT NEOPLASM 240 Low-Grade Nasopharyngeal Papillary Adenocarcinoma Lester D. R. Thompson, MD 244 Nasopharyngeal Carcinoma, Nonkeratinizing Types Susan Muller, DMD, MS and Lester D. R. Thompson, MD 254 Nasopharyngeal Carcinoma, Keratinizing Type Susan Muller, DMD, MS 256 Nasopharyngeal Carcinoma, Basaloid Squamous Cell Carcinoma Susan Muller, DMD, MS 260 Diffuse Large B-Cell Lymphoma NOS Aaron Auerbach, MD, MPH SECTION 3: LARYNX AND TRACHEA 266 Larynx Lester D. R. Thompson, MD and Jonathan B. McHugh, MD CONGENITAL/GENETIC/HEREDITARY 268 Laryngocele and Laryngeal Cysts Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 270 Tracheopathia Osteoplastica Lester D. R. Thompson, MD INFECTIOUS 272 Laryngitis: Viral, Bacterial, Fungal Lester D. R. Thompson, MD REACTIVE 276 Vocal Cord Nodules and Polyps Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 280 Reactive Epithelial Changes Lester D. R. Thompson, MD 284 Contact Ulcer Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 286 Amyloid (Amyloidoma) Lester D. R. Thompson, MD BENIGN NEOPLASM 288 Squamous Papilloma Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 292 Granular Cell Tumor, Larynx Lester D. R. Thompson, MD 294 Adult Rhabdomyoma Lester D. R. Thompson, MD 296 Inflammatory Myofibroblastic Tumor Lester D. R. Thompson, MD 300 Paraganglioma, Larynx Lester D. R. Thompson, MD 302 Chondroma Lester D. R. Thompson, MD BORDERLINE NEOPLASM 304 EBV-Associated Smooth Muscle Tumor Lester D. R. Thompson, MD MALIGNANT NEOPLASM 306 Keratinizing Dysplasia and Carcinoma In Situ Susan Muller, DMD, MS and Lester D. R. Thompson, MD 314 Conventional Squamous Cell Carcinoma Susan Muller, DMD, MS 322 Verrucous Carcinoma Susan Muller, DMD, MS 326 Spindle Cell Squamous Cell Carcinoma Lester D. R. Thompson, MD 332 Papillary Squamous Cell Carcinoma Lester D. R. Thompson, MD and Susan Muller, DMD, MS 336 Basaloid Squamous Cell Carcinoma Lester D. R. Thompson, MD 340 Adenosquamous Carcinoma Lester D. R. Thompson, MD and Susan Muller, DMD, MS 344 Neuroendocrine Neoplasms, Larynx Lester D. R. Thompson, MD 354 Chondrosarcoma Lester D. R. Thompson, MD 358 Metastatic/Secondary Tumors, Larynx and Trachea Lester D. R. Thompson, MD SPECIMEN EXAMINATION, LARYNX 360 Specimen Examination and Staging Tools, Larynx and Trachea Lester D. R. Thompson, MD SECTION 4: ORAL CAVITY 364 Tongue Lester D. R. Thompson, MD and Jonathan B. McHugh, MD 366 Oral Mucosae Brenda L. Nelson, DDS, MS CONGENITAL/GENETIC/HEREDITARY 368 Ectopic (Lingual) Thyroid Susan Muller, DMD, MS 370 White Sponge Nevus Susan Muller, DMD, MS INFECTIOUS 372 Multifocal Epithelial Hyperplasia (Heck Disease) Susan Muller, DMD, MS 374 Oral Hairy Leukoplakia Susan Muller, DMD, MS 376 Oral Infections Susan Muller, DMD, MS 380 Oral Syphilis Brenda L. Nelson, DDS, MS INFLAMMATORY-IMMUNE DYSFUNCTION 384 Aphthous Stomatitis Susan Muller, DMD, MS 390 Pemphigus Vulgaris Susan Muller, DMD, MS 392 Mucous Membrane Pemphigoid Susan Muller, DMD, MS 394 Oral Lichen Planus Susan Muller, DMD, MS 398 Erythema Multiforme Susan Muller, DMD, MS 400 Lupus Erythematosus Susan Muller, DMD, MS REACTIVE 404 Frictional Hyperkeratosis Susan Muller, DMD, MS 405 Pseudoepitheliomatous Hyperplasia Susan Muller, DMD, MS 406 Necrotizing Sialometaplasia Susan Muller, DMD, MS 408 Traumatic Ulcerative Granuloma With Stromal Eosinophilia Susan Muller, DMD, MS 410 Giant Cell Fibroma Brenda L. Nelson, DDS, MS 411 Amalgam Tattoo Susan Muller, DMD, MS 412 Tobacco Changes Brenda L. Nelson, DDS, MS 414 Parulis Brenda L. Nelson, DDS, MS NONNEOPLASTIC LESIONS 415 Fordyce Granules Susan Muller, DMD, MS 416 Mucocele and Ranula Susan Muller, DMD, MS 418 Verruciform Xanthoma Susan Muller, DMD, MS 419 Hairy Tongue Brenda L. Nelson, DDS, MS 420 Geographic Tongue Brenda L. Nelson, DDS, MS 422 Juxtaoral Organ of Chievitz Susan Muller, DMD, MS 423 Heterotopic Salivary Glands Brenda L. Nelson, DDS, MS BENIGN NEOPLASM 424 Squamous Papilloma (Including Verruca and Condyloma) Susan Muller, DMD, MS 428 Fibroma, Oral Cavity Brenda L. Nelson, DDS, MS 430 Pyogenic Granuloma Susan Muller, DMD, MS 432 Peripheral Giant Cell Granuloma Brenda L. Nelson, DDS, MS 434 Peripheral Ossifying Fibroma Brenda L. Nelson, DDS, MS 436 Mucosal Neuroma Brenda L. Nelson, DDS, MS 438 Solitary Circumscribed Neuroma Brenda L. Nelson, DDS, MS 440 Acquired Melanocytic Nevus Susan Muller, DMD, MS 444 Melanoacanthoma Susan Muller, DMD, MS 445 Oral Lymphangioma Susan Muller, DMD, MS 446 Teratoma, Oral Cavity Brenda L. Nelson, DDS, MS BORDERLINE NEOPLASM 448 Congenital Granular Cell Epulis Susan Muller, DMD, MS 450 Granular Cell Tumor, Oral Cavity Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 454 Melanotic Neuroectodermal Tumor of Infancy Lester D. R. Thompson, MD 456 Ectomesenchymal Chondromyxoid Tumor Brenda L. Nelson, DDS, MS 460 GLI1-Altered Soft Tissue Tumor Lester D. R. Thompson, MD MALIGNANT NEOPLASM 462 Dysplasia and Carcinoma In Situ Susan Muller, DMD, MS 468 Proliferative Verrucous Leukoplakia Susan Muller, DMD, MS 470 Squamous Cell Carcinoma, Oral Cavity Susan Muller, DMD, MS 476 Mucosal Melanoma, Oral Cavity Susan Muller, DMD, MS 480 Extraskeletal Myxoid Chondrosarcoma Lester D. R. Thompson, MD 482 Angiosarcoma, Oral Cavity Brenda L. Nelson, DDS, MS 484 Kaposi Sarcoma, Oral Cavity Susan Muller, DMD, MS 486 Metastatic/Secondary Tumors: Oral Cavity; Jaw Susan Muller, DMD, MS SPECIMEN EXAMINATION, LIP AND ORAL CAVITY 488 Specimen Examination and Staging Tools, Lip and Oral Cavity Susan Muller, DMD, MS SECTION 5: OROPHARYNX INFECTIOUS 492 Infectious Mononucleosis Aaron Auerbach, MD, MPH 496 HIV Infection of Tonsils and Adenoids Lester D. R. Thompson, MD REACTIVE 500 Lymphangiomatous Polyp Susan Muller, DMD, MS and Lester D. R. Thompson, MD MALIGNANT NEOPLASM 502 Oropharyngeal Carcinoma Susan Muller, DMD, MS SECTION 6: SALIVARY GLANDS 508 Major Salivary Glands Susan Muller, DMD, MS and Lester D. R. Thompson, MD INFECTIOUS 510 HIV Salivary Gland Disease Susan Muller, DMD, MS INFLAMMATORY-IMMUNE DYSFUNCTION 512 Benign Lymphoepithelial Cyst Susan Muller, DMD, MS 514 Benign Lymphoepithelial Lesion Susan Muller, DMD, MS and Lester D. R. Thompson, MD 516 Sjoegren Syndrome Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 520 IgG4-Related Salivary Gland Disease Susan Muller, DMD, MS REACTIVE 524 Oncocytosis (Oncocytic Hyperplasia) Brenda L. Nelson, DDS, MS 525 Sialolithiasis Brenda L. Nelson, DDS, MS BENIGN NEOPLASM 526 Pleomorphic Adenoma Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 536 Basal Cell Adenoma Lester D. R. Thompson, MD and Susan Muller, DMD, MS 540 Myoepithelioma Susan Muller, DMD, MS and Lester D. R. Thompson, MD 544 Warthin Tumor (Papillary Cystadenoma Lymphomatosum) Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 548 Oncocytoma Lester D. R. Thompson, MD 554 Canalicular Adenoma Lester D. R. Thompson, MD 556 Cystadenoma Susan Muller, DMD, MS 558 Ductal Papillomas Susan Muller, DMD, MS 562 Salivary Gland Adenoma: Lymphadenoma, Sebaceous Lymphadenoma, and Sebaceous Adenoma Lester D. R. Thompson, MD and Susan Muller, DMD, MS 564 Sclerosing Polycystic Adenoma Susan Muller, DMD, MS 566 Keratocystoma Susan Muller, DMD, MS 567 Sialolipoma Susan Muller, DMD, MS 568 Hemangioma, Parotid Gland Susan Muller, DMD, MS BORDERLINE NEOPLASM 570 Sialoblastoma Lester D. R. Thompson, MD MALIGNANT NEOPLASM 574 Mucoepidermoid Carcinoma, Salivary Susan Muller, DMD, MS and Lester D. R. Thompson, MD 584 Adenoid Cystic Carcinoma Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 592 Acinic Cell Carcinoma Lester D. R. Thompson, MD 600 Secretory Carcinoma, Salivary Gland Lester D. R. Thompson, MD 604 Microsecretory Adenocarcinoma Lester D. R. Thompson, MD 606 Polymorphous Adenocarcinoma, Low-Grade Subtype Lester D. R. Thompson, MD and Susan Muller, DMD, MS 612 Polymorphous Adenocarcinoma, Cribriform Subtype Lester D. R. Thompson, MD and Susan Muller, DMD, MS 614 Hyalinizing Clear Cell Carcinoma Susan Muller, DMD, MS and Lester D. R. Thompson, MD 620 Basal Cell Adenocarcinoma Lester D. R. Thompson, MD and Susan Muller, DMD, MS 624 Intraductal Carcinoma Lester D. R. Thompson, MD 626 Salivary Duct Carcinoma Lester D. R. Thompson, MD 636 Myoepithelial Carcinoma Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 640 Epithelial-Myoepithelial Carcinoma Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 646 Carcinoma Ex-Pleomorphic Adenoma Lester D. R. Thompson, MD 656 Mucinous Adenocarcinoma Lester D. R. Thompson, MD 660 Sclerosing Microcystic Adenocarcinoma Lester D. R. Thompson, MD 662 Lymphoepithelial Carcinoma, Salivary Gland Lester D. R. Thompson, MD 668 Sebaceous Carcinoma and Sebaceous Lymphadenocarcinoma Lester D. R. Thompson, MD and Susan Muller, DMD, MS 670 Adenocarcinoma, Not Otherwise Specified Brenda L. Nelson, DDS, MS 672 Small Cell Neuroendocrine Carcinoma, Salivary Gland Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 676 Lymphoma, Salivary Gland Aaron Auerbach, MD, MPH 678 Metastatic/Secondary Tumors, Salivary Glands Lester D. R. Thompson, MD SPECIMEN EXAMINATION, SALIVARY GLANDS 680 Specimen Examination and Staging Tools, Salivary Glands Lester D. R. Thompson, MD and Susan Muller, DMD, MS SECTION 7: JAW 684 Teeth Brenda L. Nelson, DDS, MS CONGENITAL/GENETIC/HEREDITARY 686 Cherubism Susan Muller, DMD, MS REACTIVE/INFECTIOUS 688 Tori Susan Muller, DMD, MS 690 Osteomyelitis Brenda L. Nelson, DDS, MS 694 Osteonecrosis Susan Muller, DMD, MS 698 Cemento-Osseous Dysplasia Brenda L. Nelson, DDS, MS 700 Fibrous Dysplasia Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 704 Paget Disease of Bone Brenda L. Nelson, DDS, MS CYSTS 708 Simple Bone Cyst Brenda L. Nelson, DDS, MS 710 Pseudocysts and Surgical Ciliated Cysts of Jaw Brenda L. Nelson, DDS, MS 712 Periapical Cyst/Granuloma Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 714 Nasopalatine Duct Cyst Lester D. R. Thompson, MD 716 Dentigerous Cyst Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 720 Orthokeratinized Odontogenic Cyst Brenda L. Nelson, DDS, MS 722 Lateral Periodontal Cyst Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 724 Calcifying Odontogenic Cyst Brenda L. Nelson, DDS, MS 726 Glandular Odontogenic Cyst Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 728 Odontogenic Keratocyst Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD BENIGN NEOPLASM 732 Adenomatoid Odontogenic Tumor Brenda L. Nelson, DDS, MS 734 Squamous Odontogenic Tumor Brenda L. Nelson, DDS, MS 736 Calcifying Epithelial Odontogenic Tumor Brenda L. Nelson, DDS, MS 738 Ameloblastoma, Jaw Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 744 Odontoma (Complex and Compound) Brenda L. Nelson, DDS, MS 746 Ameloblastic Fibroma/Fibroodontoma Brenda L. Nelson, DDS, MS 748 Odontogenic Fibroma Brenda L. Nelson, DDS, MS 750 Cementoblastoma Brenda L. Nelson, DDS, MS 752 Odontogenic Myxoma Susan Muller, DMD, MS 754 Central Giant Cell Granuloma Brenda L. Nelson, DDS, MS 756 Ossifying Fibroma, Jaw Lester D. R. Thompson, MD and Brenda L. Nelson, DDS, MS 760 Juvenile Active Ossifying Fibroma Lester D. R. Thompson, MD 764 Osteoma Lester D. R. Thompson, MD 766 Osteoblastoma Lester D. R. Thompson, MD MALIGNANT NEOPLASM 768 Ameloblastic Carcinoma Brenda L. Nelson, DDS, MS 770 Clear Cell Odontogenic Carcinoma Brenda L. Nelson, DDS, MS 772 Ghost Cell Odontogenic Carcinoma Lester D. R. Thompson, MD 774 Ameloblastic Fibrosarcoma Brenda L. Nelson, DDS, MS 776 Osteosarcoma, Jaw Susan Muller, DMD, MS and Lester D. R. Thompson, MD 780 Chondrosarcoma, Jaw Susan Muller, DMD, MS 786 Plasma Cell Myeloma, Jaw Aaron Auerbach, MD, MPH SECTION 8: EAR AND TEMPORAL BONE 790 Ear Lester D. R. Thompson, MD and Jonathan B. McHugh, MD CONGENITAL/GENETIC/HEREDITARY 792 Accessory Tragus Susan Muller, DMD, MS 794 Encephalocele Lester D. R. Thompson, MD 796 First Branchial Cleft Anomaly Lester D. R. Thompson, MD INFECTIOUS 800 Otitis Media Lester D. R. Thompson, MD 802 Necrotizing Otitis Externa Lester D. R. Thompson, MD INFLAMMATORY-IMMUNE DYSFUNCTION 804 Chondrodermatitis Nodularis Chronica Helicis Lester D. R. Thompson, MD 806 Otic Polyp Lester D. R. Thompson, MD 808 Relapsing Polychondritis Lester D. R. Thompson, MD DEGENERATIVE 810 Cystic Chondromalacia (Auricular Pseudocyst) Lester D. R. Thompson, MD 812 Otosclerosis Susan Muller, DMD, MS and Lester D. R. Thompson, MD METABOLIC 814 Gout Lester D. R. Thompson, MD and Susan Muller, DMD, MS REACTIVE 816 Exostosis Lester D. R. Thompson, MD 818 Keloid David Cassarino, MD, PhD and Lester D. R. Thompson, MD 820 Synovial Chondromatosis (Temporomandibular Joint) Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD BENIGN NEOPLASM 822 Ceruminous Adenoma Lester D. R. Thompson, MD 826 Cholesteatoma Lester D. R. Thompson, MD 830 Jugulotympanic Paraganglioma Lester D. R. Thompson, MD 836 Vestibular Schwannoma Lester D. R. Thompson, MD and Susan Muller, DMD, MS 840 Meningioma, Ear and Temporal Bone Lester D. R. Thompson, MD 842 Epithelioid Hemangioma Lester D. R. Thompson, MD 844 Middle Ear Neuroendocrine Tumor Lester D. R. Thompson, MD 850 Endolymphatic Sac Tumor Lester D. R. Thompson, MD 854 Langerhans Cell Histiocytosis, Ear and Temporal Bone Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD MALIGNANT NEOPLASM 856 Atypical Fibroxanthoma David Cassarino, MD, PhD and Lester D. R. Thompson, MD 860 Squamous Cell Carcinoma, Ear and Temporal Bone Lester D. R. Thompson, MD and David Cassarino, MD, PhD 864 Basal Cell Carcinoma Lester D. R. Thompson, MD and David Cassarino, MD, PhD 866 Merkel Cell Carcinoma Lester D. R. Thompson, MD and David Cassarino, MD, PhD 870 Dermatofibrosarcoma Protuberans Lester D. R. Thompson, MD and David Cassarino, MD, PhD 874 Ceruminous Adenocarcinoma Lester D. R. Thompson, MD 878 Rhabdomyosarcoma, Ear and Temporal Bone Lester D. R. Thompson, MD 882 Metastatic/Secondary Tumors, Ear and Temporal Bone Lester D. R. Thompson, MD SECTION 9: NECK (SOFT TISSUE ANDLYMPH NODES) 886 Lymph Nodes Lester D. R. Thompson, MD CONGENITAL/GENETIC/HEREDITARY 888 Branchial Cleft Cyst Brenda L. Nelson, DDS, MS and Lester D. R. Thompson, MD 894 Dermoid Cyst Brenda L. Nelson, DDS, MS 896 Cervical Thymic Cyst Brenda L. Nelson, DDS, MS 898 Bronchogenic Cyst Brenda L. Nelson, DDS, MS INFECTIOUS 900 Cat-Scratch Disease Lester D. R. Thompson, MD 904 Bacillary Angiomatosis Susan Muller, DMD, MS 906 Mycobacterial Spindle Cell Pseudotumor Lester D. R. Thompson, MD INFLAMMATORY-IMMUNE DYSFUNCTION 908 Sarcoidosis Brenda L. Nelson, DDS, MS REACTIVE 910 Nodular Fasciitis Lester D. R. Thompson, MD BENIGN NEOPLASM 912 Lymphangioma, Neck Brenda L. Nelson, DDS, MS 914 Lipoma Brenda L. Nelson, DDS, MS 916 Spindle Cell Lipoma Lester D. R. Thompson, MD 918 Hibernoma Lester D. R. Thompson, MD 920 Lipoblastoma Brenda L. Nelson, DDS, MS 922 Elastofibroma Lester D. R. Thompson, MD 924 Perineurioma Lester D. R. Thompson, MD 928 Fetal Rhabdomyoma Lester D. R. Thompson, MD 932 Nuchal-Type Fibroma Brenda L. Nelson, DDS, MS 934 Branchioma (Ectopic Hamartomatous Thymoma) Lester D. R. Thompson, MD 936 Carotid Body Paraganglioma Lester D. R. Thompson, MD MALIGNANT NEOPLASM 942 Metastatic Cystic Squamous Cell Carcinoma Lester D. R. Thompson, MD 948 Synovial Sarcoma Lester D. R. Thompson, MD 954 Chordoma Lester D. R. Thompson, MD 960 Liposarcoma Susan Muller, DMD, MS SECTION 10: THYROID GLAND 966 Thyroid Gland Lester D. R. Thompson, MD and Jonathan B. McHugh, MD CONGENITAL/GENETIC/HEREDITARY 968 Thyroglossal Duct Cyst Lester D. R. Thompson, MD 972 Ectopic Thyroid Gland Susan Muller, DMD, MS 974 Solid Cell Nests Lester D. R. Thompson, MD 976 Dyshormonogenetic Goiter Lester D. R. Thompson, MD INFECTIOUS 980 Infectious Thyroiditis Lester D. R. Thompson, MD INFLAMMATORY-IMMUNE DYSFUNCTION 984 Palpation Thyroiditis Lester D. R. Thompson, MD 986 Subacute Granulomatous Thyroiditis (de Quervain) Lester D. R. Thompson, MD 992 Chronic Lymphocytic (Hashimoto) Thyroiditis Lester D. R. Thompson, MD 998 Graves Disease (Diffuse Hyperplasia) Lester D. R. Thompson, MD 1004 Amyloid Goiter Lester D. R. Thompson, MD 1008 IgG4-Related Thyroiditis Lester D. R. Thompson, MD REACTIVE 1010 Multinodular Hyperplasia Lester D. R. Thompson, MD 1018 Pigments and Crystals in Thyroid Gland Lester D. R. Thompson, MD 1020 Post Thyroid Biopsy Changes Lester D. R. Thompson, MD 1024 C-Cell Hyperplasia (Physiologic) Lester D. R. Thompson, MD 1026 Radiation Thyroiditis Lester D. R. Thompson, MD BENIGN NEOPLASM 1028 Follicular Adenoma Lester D. R. Thompson, MD 1034 Follicular Adenoma With Papillary Architecture Lester D. R. Thompson, MD 1038 Oncocytic Follicular Adenoma Lester D. R. Thompson, MD 1042 Noninvasive Follicular Thyroid Neoplasm With Papillary-Like Nuclei Lester D. R. Thompson, MD 1046 Hyalinizing Trabecular Tumor Lester D. R. Thompson, MD 1050 Thyroid Teratoma Lester D. R. Thompson, MD 1054 Paraganglioma, Thyroid Gland Lester D. R. Thompson, MD 1056 Solitary Fibrous Tumor, Thyroid Gland Lester D. R. Thompson, MD 1060 Leiomyoma, Thyroid Gland Lester D. R. Thompson, MD 1062 Schwannoma, Thyroid Gland Lester D. R. Thompson, MD 1064 Langerhans Cell Histiocytosis, Thyroid Gland Lester D. R. Thompson, MD 1068 Ovarian Thyroid Tissue Lester D. R. Thompson, MD MALIGNANT NEOPLASM 1072 Papillary Thyroid Carcinoma Lester D. R. Thompson, MD 1088 Follicular Thyroid Carcinoma Lester D. R. Thompson, MD 1100 Oncocytic Follicular Thyroid Carcinoma Lester D. R. Thompson, MD 1106 High-Grade Follicular-Derived Thyroid Carcinomas Lester D. R. Thompson, MD 1114 Undifferentiated (Anaplastic) Thyroid Carcinoma Lester D. R. Thompson, MD 1122 Medullary Thyroid Carcinoma Lester D. R. Thompson, MD 1134 Thyroblastoma Lester D. R. Thompson, MD 1136 Mucoepidermoid Carcinoma, Thyroid Gland Lester D. R. Thompson, MD 1140 Sclerosing Mucoepidermoid Carcinoma With Eosinophilia Lester D. R. Thompson, MD 1144 Cribriform Morular Thyroid Carcinoma Lester D. R. Thompson, MD 1146 Spindle Epithelial Tumor With Thymus-Like Elements Lester D. R. Thompson, MD 1150 Thymic Carcinoma Family Thyroid Tumors Lester D. R. Thompson, MD 1154 Angiosarcoma, Thyroid Gland Lester D. R. Thompson, MD 1158 Leiomyosarcoma, Thyroid Gland Lester D. R. Thompson, MD 1162 Malignant Peripheral Nerve Sheath Tumor, Thyroid Gland Lester D. R. Thompson, MD 1166 Follicular Dendritic Cell Sarcoma, Thyroid Gland Lester D. R. Thompson, MD 1170 Lymphoma, Thyroid Gland Lester D. R. Thompson, MD 1180 Metastatic/Secondary Tumors, Thyroid Gland Lester D. R. Thompson, MD SPECIMEN EXAMINATION, THYROID GLAND 1186 Specimen Examination and Staging Tools, Thyroid Gland Lester D. R. Thompson, MD SECTION 11: PARATHYROID GLANDS 1190 Parathyroid Lester D. R. Thompson, MD and Jonathan B. McHugh, MD NONNEOPLASTIC 1192 Parathyroid Hyperplasia Lester D. R. Thompson, MD 1200 Tertiary Hyperparathyroidism Lester D. R. Thompson, MD 1201 Chronic Parathyroiditis Lester D. R. Thompson, MD BENIGN NEOPLASM 1202 Parathyroid Adenoma Lester D. R. Thompson, MD MALIGNANT NEOPLASM 1210 Parathyroid Carcinoma Lester D. R. Thompson, MD 1216 Metastatic/Secondary Tumors, Parathyroid Glands Lester D. R. Thompson, MD
