KEY FACTS Terminology Sinus histiocytosis: Benign pseudolymphomatous clinicopathologic entity of unknown etiology You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Benign lymph-filled cyst due to leaking lymphatic channels Synonyms: Lymphatic cyst, lymphocyst, chylocele, chyloma, chylous cyst, (distal) thoracic duct cyst You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology N on- H odgkin L ymphoma (NHL) Heterogeneous lymphoreticular system malignancy H&N NHL has multiple forms Nodal, nonnodal lymphatic (Waldeyer lymphatic ring), extralymphatic (e.g., skull base, thyroid, sinuses) You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Posttransplantation lymphoproliferative disorder (PTLD) Uncontrolled lymphoid growth in transplant recipient on immunosuppressive therapy Disease spectrum ranges from hyperplasia to malignancy Reactive hyperplasia → polymorphic PTLD → monomorphic PTLD → Hodgkin disease & non-Hodgkin lymphoma-like PTLD You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Plexiform neurofibroma: Architecturally complex neurofibroma involving multiple nerve fascicles Pathognomonic for neurofibromatosis type 1 (NF1) You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Benign neoplasm composed of mature fat You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Synonym: Prominent, normal left lymphatic duct Definition: Normal anatomical structure draining lymph and chyle from abdomen and left chest You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
Summary Thoughts: Trans- and Multispatial Lesions Transspatial and multispatial terms are used to describe specific subsets of lesions found in the head and neck. The transspatial descriptor is used to describe a lesion that involves multiple contiguous spaces or areas of the extracranial head and neck. Multispatial is applied to a lesion that is found in multiple noncontiguous spaces or areas. Approaches to Imaging Issues in…
KEY FACTS Terminology Definition: Cervical metastatic adenopathy from infraclavicular primary tumor Virchow nodal metastasis: Left supraclavicular nodal lesion You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Abbreviation: Differentiated thyroid carcinoma (DTCa) Definition: Metastatic node(s) from papillary or follicular thyroid carcinoma You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Non-Hodgkin lymphoma (NHL) is lymphoreticular system malignancy Multiple different NHL subtypes Multiple manifestations of NHL in H&N Nodal, nonnodal lymphatic (Waldeyer lymphatic ring), nonnodal extralymphatic NHL You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Abbreviation: Hodgkin lymphoma (HL) Definition: Lymphoma with Reed-Sternberg cells You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Kimura disease (KD): Angiolymphoid proliferation with serum eosinophilia and elevated IgE Inflammatory disorder with multiple H&N masses You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Definition: Benign idiopathic necrotizing cervical adenitis of young Asian adults Synonym: Kikuchi-Fujimoto disease You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Castleman disease (CD) Uncommon benign idiopathic hypervascular polyclonal lymphoid hyperplasia Histologic subtypes Hyaline vascular (90%) Plasma cell (10%) – Human herpesvirus 8 (HHV-8) related You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Sarcoidosis definition: Noncaseating granulomatous inflammatory disease of unknown or autoimmune etiology You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Non-TB Mycobacterium (NTM) nodes: Chronic neck infection with NTM Most often Mycobacterium avium complex You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Synonym: Cervical TB adenitis Definition: Mycobacterium tuberculosis nodal infection You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Adenitis, acute lymphadenitis, intranodal abscess Pus formation within nodes from bacterial infection You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Definition: Benign, reversible enlargement of nodes in response to antigen stimulus You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here