Dermoid Cyst

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Dermoid Cyst

  1. 1. Dermoid cyst <ul><li>Loose term given to cysts lined by sq epithelium </li></ul><ul><li>Seb cysts are lined by sq cells ,hence the name epidermoid </li></ul>
  2. 2. types <ul><li>Teratomatous </li></ul><ul><li>Sequestration </li></ul><ul><li>Implantation </li></ul>
  3. 3. Teratomatous <ul><li>Ovary </li></ul><ul><li>Testis </li></ul><ul><li>Retroperitoneum </li></ul><ul><li>Mediastinum </li></ul><ul><li>Presacral </li></ul><ul><li>Malignant change possible </li></ul>
  4. 4. Sequestration <ul><li>Inclusion of epithelial nests beneath surfaces </li></ul><ul><li>Midline </li></ul><ul><li>Ext angular process </li></ul><ul><li>Root of nose </li></ul>
  5. 5. Implantation <ul><li>Follow puncture wounds </li></ul><ul><li>Common in fingers </li></ul>
  6. 6. Treatment <ul><li>excision </li></ul>
  7. 7. Branchial cyst <ul><li>Vestigial remnants of second branchial cleft </li></ul><ul><li>Sq epithelium </li></ul><ul><li>Contains thick turbid fluid with cholesterol crystals </li></ul>
  8. 8. Branchial cyst <ul><li>Upper neck </li></ul><ul><li>Early / middle adulthood </li></ul><ul><li>Jn of upper & middle third of SM muscle </li></ul><ul><li>Fluctuant swelling </li></ul><ul><li>May Tran illuminate </li></ul>
  9. 9. Branchial cyst <ul><li>Infection </li></ul><ul><li>USS & FNAC </li></ul><ul><li>Treatment is complete excision </li></ul>
  10. 10. Cystic hygroma <ul><li>Sequestration of a portion of jugular lymph sac </li></ul><ul><li>Neonate / early infancy </li></ul><ul><li>Obstruct labour </li></ul>
  11. 11. Cystic hygroma <ul><li>Lower third of the neck </li></ul><ul><li>Posterior triangle </li></ul><ul><li>Soft & partially compressible </li></ul><ul><li>Brilliantly trans illuminant </li></ul>
  12. 12. Cystic hygroma <ul><li>Cheek,groin,mediastinum </li></ul><ul><li>resp obsruction </li></ul><ul><li>Infection </li></ul><ul><li>Regression </li></ul><ul><li>excision </li></ul>
  13. 13. Sebacious cyst <ul><li>Retention cyst </li></ul><ul><li>Obstruction of a seb gland </li></ul><ul><li>Down growth and accumulation of desquamated epithelial cells </li></ul>
  14. 14. Sebaceous cyst <ul><li>Epidermoid cyst </li></ul><ul><li>Excision </li></ul><ul><li>Incision & avulsion </li></ul>
  15. 15. Sinus <ul><li>Blind track lined by granulation tissue from epithelial surface surrounding tissues </li></ul>
  16. 16. Fistula <ul><li>Abnormal communication b/n two epithelial surfaces </li></ul>
  17. 17. <ul><li>Congenital </li></ul><ul><li>preauricular sinus, </li></ul><ul><li>branchial fistulas </li></ul><ul><li>acquired </li></ul><ul><li>fistula in ano </li></ul><ul><li>AVF </li></ul>
  18. 18. Causes <ul><li>FB </li></ul><ul><li>Non dependent drainage </li></ul><ul><li>Obstruction </li></ul><ul><li>TB, actinomycosis </li></ul><ul><li>Malignancy </li></ul><ul><li>Crohns </li></ul>
  19. 19. Treatment <ul><li>Basic pathology has to be treated </li></ul>

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