Difference between Benign and Malignant Neoplasms

Growth is slow

benign

Metaplasia (transformation to another tissue type).

malignant

Encapsulation is the rule

Benign

Growth is by expansion

Benign

Metastases are lacking

Benign

Growth is discrete and may be pedunculated

Benign

Infiltration of surrounding tissue does not occur

Benign

Differentiation of cell is prominent (in contrast to anaplasia)

Benign

Few mitotic figure

Benign

Anaplasia (enlarges nucleoli, hyperchromatism, increased mitotic figure and atypical figure.

malignant

transplantation (on distant tissues

malignant

Many mitotic figure

malignant

the transfer of neoplastic cells from one organ to another not directly connected with it (through blood or lymphatic circulation).

metastasis

harmless, unless their location interferes with the functions of important organs

benign

grow slowly, does not metastasize, and does not recur when removed.

benign

benign ends with suffix

-oma

harmful, for they infiltrate vital organs, grow rapidly metastasize, and recur atter excision, cautery (sinusunog ung part na may tumor using cautery machine), or irradiation, unless every infiltrating cells are removed in the surrounding tissue.

malignant

malignant ends with the suffic

carcinoma or sarcoma

epithelial origin (malignant) suffix

-carcinoma

mesenchymal origin (malignant) suffix

sarcoma