Glossary

Author: Glossary

  • Miliary nodule

    Small round density, 1 to 5 mm in diameter, as seen on the chest radiograph (e.g., in disseminated tuberculosis).  

  • Nodular worm

    The common name of worms of the genus Oesophagostomum.  

  • Nodular elastosis

    A severe form of elastosis caused by prolonged exposure to the sun. Elastotic material accumulates in the skin and forms cysts and comedones around the face. This condition occurs almost exclusively in middle-aged or elderly white men.  

  • Nodosity

    A protuberance or knot. The state of having nodes or a node.  

  • Syphilitic node

    Circumscribed swelling at the end of long bones due to congenital syphilis. The nodes are sensitive and painful during inflammation, especially at night.  

  • Singer’s node

    Noncancerous, callus-like growths on the inner parts of the vocal cords, usually caused by voice abuse or overuse. Hoarseness and an inability of singers to produce the desired sounds mark this condition. It is treated by resting the voice. Surgical removal of the nodules is necessary if they do not respond to conservative therapy. Tiny,…

  • Signal node

    Enlargement of one of the supraclavicular lymph nodes; usually indicative of primary carcinoma of thoracic or abdominal organs.  

  • Sentinel node

    A lymph node that receives drainage from a tumor and is likely to harbor metastatic disease before cancer cells have the opportunity to spread elsewhere.  

  • Schmorl’s node

    Node seen in radiographs of the spine. It is caused by prolapse of the nucleus pulposus into the end plate of the vertebra.  

  • Hensen’s node

    A mass of rapidly proliferating cells at the anterior end of the primitive streak of the embryo.