Koch and Hamilton, Expert DDx Head and Neck
Suprahyoid & Infrahyoid
Anatomically Based Differentials
Parapharyngeal Space Lesion
Pharyngeal Mucosal Space Lesion, Nasopharynx
Pharyngeal Mucosal Space Lesion, Oropharynx
Masticator Space Lesion
Buccal Space Lesion
Parotid Space Mass
Carotid Space Lesion
Carotid Artery Lesion
Perivertebral Space Lesion
Brachial Plexus Lesion
Visceral Space Lesion
Cervical Tracheal Lesion
Tracheoesophageal Groove Lesion
Posterior Cervical Space Lesion
Cervicothoracic Junction Lesion
TMJ Mass Lesions
Calcified TMJ Lesions
TMJ Cysts
Generic Imaging Patterns
Diffuse Parotid Disease
Multiple Parotid Masses
Focal Retropharyngeal Space Mass
Diffuse Retropharyngeal Space Disease
Diffuse Thyroid Enlargement
Focal Thyroid Mass
Invasive Thyroid Mass
Clinically Based Differentials
Cheek Mass
Trismus
Oral Cavity, Mandible & Maxilla
Anatomically Based Differentials
Oral Mucosal Space/Surface Lesion
Sublingual Space Lesion
Submandibular Space Lesion
Submandibular Gland Lesion
Root of Tongue Lesion
Hard Palate Lesion
Maxillary Bone Lesion
Generic Imaging Patterns
Tooth-Related Mass, Sclerotic
Tooth-Related Mass, Cystic
Modality-Specific Imaging Findings
Low-Density Jaw Lesion, Sharply Marginated (CT)
Low-Density Jaw Lesion, Poorly Marginated (CT)
Ground-Glass Lesions of Mandible & Maxilla (CT)
Hypopharynx & Larynx
Anatomically Based Differentials
Hypopharyngeal Lesion
Laryngeal Lesion
Generic Imaging Patterns
Epiglottic Enlargement
Diffuse Laryngeal Swelling
Subglottic Stenosis
Clinically Based Differentials
Vocal Cord Paralysis (Left)
Vocal Cord Paralysis (Right)
Stridor in Child
Lymph Nodes
Generic Imaging Patterns
Enlarged Lymph Nodes in Neck in Adult
Avidly Enhancing Lymph Nodes
Enlarged Lymph Nodes in Neck of Child
Transspatial, Multispatial, or Multilocation in Head and Neck
Generic Imaging Patterns
Air-Containing Lesions in Neck
Solid Neck Mass in Infant
Solid Neck Mass in Child
Cystic Neck Mass in Child
Cystic-Appearing Neck Masses in Adult
Transspatial Mass in Child
Transspatial Neck Mass
Modality-Specific Imaging Findings
Hyperdense Neck Lesion (CT)
Low-Density Neck Lesion (CT)
Hypervascular Neck Lesion (CT/MR)
Clinically Based Differentials
Angle of Mandible Mass
Supraclavicular Mass
Sinus and Nose
Anatomically Based Differentials
Sinonasal Anatomic Variants
Generic Imaging Patterns
Nasal Septal Perforation
Congenital Midline Nasal Lesion
Fibroosseous & Cartilaginous Lesions
Inflammatory Patterns of Sinusitis
Multiple Sinonasal Lesions
Expansile Sinonasal Lesion
Nasal Lesion With Bone Destruction
Nasal Lesion Without Bone Destruction
Sinus Lesion Without Bone Destruction
Sinus Lesion With Bone Destruction
Facial Bone Lesion
Modality-Specific Imaging Findings
Hyperdense Disease in Sinus Lumen (CT)
Calcified Sinonasal Lesion (CT)
T2 Hypointense Sinus Lesion (MR)
Clinically Based Differentials
Nasal Obstruction in Newborn
Anosmia-Hyposmia
Epistaxis
Traumatic Lesions of Face
Orbit
Anatomically Based Differentials
Preseptal Lesion
Ocular Lesion, Adult
Ocular Lesion, Child
Optic Nerve-Sheath Lesion
Intraconal Mass
Extraconal Mass
Lacrimal Gland Lesion
Orbital Wall Lesion
Generic Imaging Patterns
Microphthalmos
Macrophthalmos
Optic Nerve Sheath Tram-Track Sign
Extraocular Muscle Enlargement
Large Superior Ophthalmic Vein(s)
Ill-Defined Orbital Mass
Cystic Orbital Lesions
Vascular Lesions of Orbit
Accidental Foreign Bodies in Orbit
Surgical Devices & Treatment Effects in Orbit
Modality-Specific Imaging Findings
Intraocular Calcifications (CT)
Clinically Based Differentials
Leukocoria
Painless Proptosis in Adult
Painful Proptosis in Adult
Rapidly Developing Proptosis in Child
Infectious & Inflammatory Orbital Lesions
Extraocular Orbital Mass in Child
Temporal Bone
Anatomically Based Differentials
External Auditory Canal Lesion
Middle Ear Lesion, Child
Middle Ear Lesion, Adult
Inner Ear Lesion, Adult
Petrous Apex Lesion
Inner Ear Lesion, Child
Facial Nerve Lesion, Temporal Bone
Generic Imaging Patterns
Enhancing Middle Ear Lesions
Expansile-Destructive Petrous Apex Lesion
Bony Lesions of Temporal Bone
Clinically Based Differentials
Conductive Hearing Loss
Peripheral Facial Nerve Paralysis
Vascular Retrotympanic Mass
Pulsatile Tinnitus
Traumatic Lesions of Temporal Bone
Secondary (Referred) Otalgia
Skull Base
Anatomically Based Differentials
Normal Skull Base Venous Variants
Skull Base Foraminal or Canal Variants
Congenital Anomalies of Skull Base
Intrinsic Skull Base Lesion
Anterior Skull Base Lesion
Cribriform Plate Lesion
Central Skull Base Lesion
Sellar/Parasellar Mass With Skull Base Invasion
Unilateral Cavernous Sinus Mass
Bilateral Cavernous Sinus Mass
Meckel Cave Lesion
Posterior Skull Base Lesion
Clival Lesion
Jugular Foramen Lesion
Dural Sinus Lesion, General
Foramen Magnum Mass
CPA-IAC & Posterior Fossa
Anatomically Based Differentials
Small Internal Auditory Canal
Large Internal Auditory Canal
CPA Mass, Adult
Prepontine Cistern Mass
Cisterna Magna Mass
Posterior Fossa Neoplasm, Adult
Posterior Fossa Neoplasm, Pediatric
Generic Imaging Patterns
Cystic CPA Mass
Clinically Based Differentials
Hemifacial Spasm
Sensorineural Hearing Loss in Adult
Sensorineural Hearing Loss in Child
Cranial Nerve & Brainstem
Anatomically Based Differentials
Midbrain Lesion
Pontine Lesion
Medulla Lesion
Clinically Based Differentials
Monocular Vision Loss
Bitemporal Heteronymous Hemianopsia
Homonymous Hemianopsia
Oculomotor, Trochlear, or Abducens Neuropathy
Trigeminal Neuropathy
Trigeminal Neuralgia
Complex Cranial Nerve IX-XII Neuropathy
Hypoglossal Neuropathy
Horner Syndrome
Generic Imaging Patterns
Enhancing Cranial Nerve(s)