Adenitis

Adenitis
Classification and external resources
MeSH	D008199

Adenitis is a general term for an inflammation of a gland.^[1] Often it is used to refer to lymphadenitis which is the inflammation of a lymph node.

Classification

Lymph node adenitis

Lymph adenitis or lymph node adenitis is caused by bacterial infection in lymph nodes. The infected lymph nodes typically become enlarged, warm and tender. A swelling of lymph nodes due to growth of lymph cells is called lymphadenopathy. Types include:

• Neck
  • Cervical adenitis is an inflammation of a lymph node in the neck.
  • Tuberculous adenitis (scrofula) is a tuberculous infection of the skin of the neck caused by Mycobacterium tuberculosis. Non-tuberculous adenitis can also be caused by Mycobacterium scrofulaceum or Mycobacterium avium.
• Abdomen
  • Mesenteric adenitis is an inflammation of the mesenteric lymph nodes in the abdomen. It can be caused by the bacterium Yersinia enterocolitica.^[2] If it occurs in the right lower quadrant, it can be mistaken for acute appendicitis, often preceded by a sore throat.

Other

Sebaceous adenitis is an inflammation of the sebaceous glands in the skin. These glands normally produce sebum (skin oil, a lipid-rich secretion) which prevents drying of the skin.

References

1. "Adenitis" at Dorland's Medical Dictionary
2. Ellis H, Calne R, Watson C. Lecture Notes on General Surgery tenth edition, p.28. ISBN 0-632-06371-8