nurse's notes

CYST

Cyst is an abnormal collection of fluid within a definite sac or wall.

Forms of Cyst

1. Retention Cyst

• called as sebaceous cyst
• when the outlet to a gland becomes black and the gland continues to secrete.

2. Epedermoid Cyst

• remnant of petal organs may secrete a fluid after forming a cyst of considerable size specially when springing from the pelvic organs of the female

2. Extravasation Cyst

• extravasation of blood in the tissues may become surrounded by definite wall

2. Hydatid Cystumor

• cyst that found in the liver formed by parasites especially taenia echinococcus (enchinococcus granulosus) or dog tapeworm.

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DIFFERENCE BETWEEN BENIGN TUMOR AND MALIGNANT TUMOR

Benign Tumor

• has a mature differentiated type of cell.
• growth can be controlled
• does not recur
  
• usually localized

Malignant Tumor

• embryonic characteristic and poorly differentiated
• growth is uncontrollable and diffused
• has the ability to recur
• can spread to distant sites

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