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Benign v. Malignant Vocabulary Neoplasm – a new and abnormal growth of tissue in some part of the body Benign – refers to a condition, tumor, or growth.

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Presentation on theme: "Benign v. Malignant Vocabulary Neoplasm – a new and abnormal growth of tissue in some part of the body Benign – refers to a condition, tumor, or growth."— Presentation transcript:

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2 Benign v. Malignant Vocabulary Neoplasm – a new and abnormal growth of tissue in some part of the body Benign – refers to a condition, tumor, or growth that is not cancerous Malignant – characterized by uncontrolled growth; cancerous, invasive, or metastatic Metastatic – the transference of disease- producing organisms or of malignant or cancerous cells to other parts of the body by way of the blood or lymphatic vessels or membranous surfaces

3 BENIGN V. MALIGNANT TUMORS  Remain localized within the tissue from which they arose  Cells grow slowly  Cells are well differentiated  Cells are encapsulated (often, not always) by dense tissue that keeps them in their original location  Tend to spread to other regions of the body  Cell grow rapidly  Cells are undifferentiated  Cells tend to fall away from their original neoplasm and travel to different parts of the body (to form new neoplasms) via the bloodstream or lymphatic system BENIGNMALIGNANT

4 BENIGN V. MALIGNANT TUMORS  Cells may grow and invade surrounding tissue  Neoplasms are divided into subgroups  Those that arise from epithelial tissue  Papilloma – forms fingerlike projection (warts)  Adenoma – tumors of glandular epithelium  Nevus – small pigmented tumors of the skin (moles)  Cells may grow and invade surrounding tissue  Neoplasms are divided into subgroups  Those that arise from epithelial tissue:  Melanoma – involves melanocytes (pigment producing cells)  Adenocarcinoma – tumors in glandular epithelium BENIGNMALIGNANT

5 PAPILLOMA ADENOMA NEVUS

6 MELANOMA ADENOCARCINOMA

7 BENIGN V. MALIGNANT TUMORS  Those that arise from connective tissue  Lipoma – tumors in adipose tissue  Osteoma – tumors in bone tissue  Chondroma – tumors in cartilage tissue  Contains miscellaneous tumors that do not fit either category (for example: adenofibroma – benign neoplasm in epithelial and connective tissue  Those that arise from connective tissue  Lymphoma – cancer of lymphatic tissue  Osteosarcoma – cancer of bone tissue  Myeloma – cancer of bone marrow  Fibrosarcoma – cancer of fibrous connective tissue  Contains miscellaneous tumors that do not fit any group (for example: neuroblastoma arises from nervous tissue) BENIGNMALIGNANT

8 LIPOMA OSTEOMA CHONDROMA

9 HODKIN’S LYMPHOMA OSTEOSARCOMA MYELOMA FIBROSARCOMA

10 ADENOFIBROMA NEUROBLASTOMA

11 BENIGN V. MALIGNANT TUMORS  Tumors are classified by the type of tissue they are found in.  Tumors are further classified by their location within the body (for example: skin, lung, stomach, breast) BENIGNMALIGNANT

12 BENIGN V. MALIGNANT TUMORS  Aren’t always harmless  Benign tumors may become malignant  Benign tumors can invade tissues to a degree that causes death  Aren’t always harmful  malignant tumors may be slow growing and treatment options can involve watching progress before other types of therapies BENIGNMALIGNANT


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