Neoplasms
Neoplasms are abnormal tissue
growths resulting from rapid division of cells. Also called tumors
or masses, neoplasms can be either solid or fluid-filled and may be
benign or malignant.
Behavioural
classification
- A benign neoplasm-
A benign neoplasm is a non-malignant (non-cancerous) tumor.
- A malignant
neoplasm or tumor- Can invade nearby tissues or tumor
cells that may extend beyond the primary site to adjacent
structures or to distant sites.
- Two types of malignant neoplasms -
Primary neoplasm: Localized point of origin,
Secondary (metastatic) neoplasm: Site to which the
tumor has spread. May be treated using surgery, and adjunct
treatments (e.g., chemotherapy, immunotherapy, and radiation
therapy)Malignant Neoplasm •
- Carcinoma in Situ-
Tumor cells undergoing malignant changes but still confined to the
point of origin without invasion of the surrounding normal
tissue.
- Neoplasm of uncertain
behavior- No determination can be made if tumor cells are
benign or malignant.
- Neoplasm of unspecified
nature- No specification of type or morphology of
neoplasm.
- Classification according to
the behaviour of the neoplasms are as follows:
- Malignant neoplasms, stated
or presumed to be primary, of specified sites, except of lymphoid,
haematopoietic and related tissue.
- Lip, oral cavity and pharynx
- Digestive organs
- Respiratory and intrathoracic
organs
- Bone and articular cartilage
- Skin
- Mesothelial and soft tissue
- Breast
- Female genital organs
- Male genital organs
- Urinary tract
- Eye, brain and other parts of
central nervous system
- Thyroid and other endocrine
glands
2. Malignant
neoplasms of ill-defined, secondary and unspecified
sites.
3. Malignant neoplasms,
stated or presumed to be primary, of lymphoid, haematopoietic and
related tissue.
4. Malignant neoplasms of
independent (primary) multiple sites.
5. In situ
neoplasms
6. Benign
neoplasms
7. Neoplasms of uncertain or
unknown behaviour