Congenital malformations, deformities, and chromosomal abnormalities (Q00-Q99).
- Cervical rib (synonyms: cervical rib; costa cervicalis; pl: costae cervicales) – extra rib arising from the cervical spine; may be unilateral as well as bilateral.
- Lateral cervical cyst – remnants of the gill arches or gill furrows.
- Median neck cyst – congenital cyst caused by defective regression of the ductus thyreoglossus.
- Gullet pocket – a gullet pocket refers to retractions on the foregut of the embryo (during embryogenesis).
Blood, hematopoietic organs – immune system (D50-D90).
- Sarcoidosis (synonyms: Boeck’s disease; Schaumann-Besnier’s disease) – systemic disease of connective tissue with granuloma formation (skin, lungs, and lymph nodes).
Endocrine, nutritional and metabolic diseases (E00-E90).
- Goiter (enlargement of the thyroid gland).
Skin and subcutaneous (L00-L99)
- Epidermal cyst – prallelastic, skin-colored cysts arising from hair follicles that grow slowly and may become infected.
- Glomus caroticum aneurysm – small, nodular paraganglion (about 3 mm in diameter), located at the junction of the left and right carotid arteries (common carotid artery)
Cardiovascular system (I00-I99).
- Nonspecific lymphadenitis (lymphadenitis) associated with local infection.
Infectious and parasitic diseases (A00-B99).
- Actinomycosis (radiation mycosis) – chronic infectious disease caused by Actinomyces israelii.
- Scrofuloderm (form of tuberculosis affecting the skin), especially in the neck, originating from the lymph nodes.
Neoplasms – tumor diseases (C00-D48).
- Glomus caroticum tumor – neoplasm in the area of the paraganglion in the wall of the carotid bifurcation.
- Hygroma cysticum colli – congenital lymph node conglomerate.
- Lymphoma – malignant neoplasm originating from the lymphatic system (e.g. Hodgkin’s disease).
- Metastasis (daughter tumor) of an unspecified neoplasm.
- Thyroid carcinoma (thyroid cancer)
Symptoms and abnormal clinical and laboratory findings not elsewhere classified (R00-R99).
- Lymphadenopathy (lymph node enlargement) (see for differential diagnoses under the topic of the same name).
Further
- Normal lymph node (in prominent position).