Malignancies Of The Jaws

1. A parosteal osteosarcoma is a slow growing swelling often with a dull, aching sensation.

True

False

A parosteal osteosarcoma is a type of bone cancer that usually develops on the surface of the bone. It is characterized by its slow growth and typically presents as a swelling. The swelling is often accompanied by a dull, aching sensation. Therefore, the statement that a parosteal osteosarcoma is a slow growing swelling often with a dull, aching sensation is true.

Explanation

A parosteal osteosarcoma is a type of bone cancer that usually develops on the surface of the bone. It is characterized by its slow growth and typically presents as a swelling. The swelling is often accompanied by a dull, aching sensation. Therefore, the statement that a parosteal osteosarcoma is a slow growing swelling often with a dull, aching sensation is true.

2. A metastatic carcinoma can appear like a pyogenic granuloma if found on the gingiva.

True

False

A metastatic carcinoma refers to cancer that has spread from its original site to other parts of the body. If it is found on the gingiva, which is the gum tissue, it can resemble a pyogenic granuloma. A pyogenic granuloma is a benign growth that often appears as a red, bleeding lump on the gums. In this case, the statement is true because a metastatic carcinoma on the gingiva can have a similar appearance to a pyogenic granuloma.

Explanation

A metastatic carcinoma refers to cancer that has spread from its original site to other parts of the body. If it is found on the gingiva, which is the gum tissue, it can resemble a pyogenic granuloma. A pyogenic granuloma is a benign growth that often appears as a red, bleeding lump on the gums. In this case, the statement is true because a metastatic carcinoma on the gingiva can have a similar appearance to a pyogenic granuloma.

3. Osteosarcomas account for 20% of all sarcomas and 5% of those occur in the jaws.

True

False

Osteosarcomas, a type of bone cancer, make up 20% of all sarcomas. Additionally, 5% of osteosarcomas specifically occur in the jaws. Therefore, the statement is true.

Explanation

Osteosarcomas, a type of bone cancer, make up 20% of all sarcomas. Additionally, 5% of osteosarcomas specifically occur in the jaws. Therefore, the statement is true.

4. An osteosarcoma is more commonly found in maxillary bone of males.

True

False

mandible

Explanation

mandible

5. Metastatic carcinoma is the most common malignancy affecting skeletal bones.

True

False

Metastatic carcinoma refers to cancer that has spread from its original site to other parts of the body, including the skeletal bones. This type of cancer is indeed the most common malignancy that affects the skeletal bones. Therefore, the statement that metastatic carcinoma is the most common malignancy affecting skeletal bones is true.

Explanation

Metastatic carcinoma refers to cancer that has spread from its original site to other parts of the body, including the skeletal bones. This type of cancer is indeed the most common malignancy that affects the skeletal bones. Therefore, the statement that metastatic carcinoma is the most common malignancy affecting skeletal bones is true.

6. Intermedullary sarcomas of jawbones show no response to radiation therapy.

True

False

Intermedullary sarcomas of jawbones are a type of cancer that originates in the bone marrow. Radiation therapy is a common treatment for many types of cancer, but in the case of intermedullary sarcomas of jawbones, it has been found to be ineffective. This means that these specific tumors do not respond to radiation therapy, making the statement "Intermedullary sarcomas of jawbones show no response to radiation therapy" true.

Explanation

Intermedullary sarcomas of jawbones are a type of cancer that originates in the bone marrow. Radiation therapy is a common treatment for many types of cancer, but in the case of intermedullary sarcomas of jawbones, it has been found to be ineffective. This means that these specific tumors do not respond to radiation therapy, making the statement "Intermedullary sarcomas of jawbones show no response to radiation therapy" true.

7. A carcinoma originates from epithelium and metastisizes via blood vessels to other areas of the body.

True

False

via lymph nodes

Explanation

via lymph nodes

8. It is generally recommended that sarcoma resections include a 2cm linear margin in the bone.

True

False

carcinomas - 2, sarcomas - 3

Explanation

carcinomas - 2, sarcomas - 3

9. A parosteal osteosarcoma is usually found in the jaws.

True

False

Parosteal osteosarcoma is a rare type of bone cancer that typically occurs in the long bones of the body, such as the femur or tibia, rather than in the jaws. Therefore, the statement that a parosteal osteosarcoma is usually found in the jaws is false.

Explanation

Parosteal osteosarcoma is a rare type of bone cancer that typically occurs in the long bones of the body, such as the femur or tibia, rather than in the jaws. Therefore, the statement that a parosteal osteosarcoma is usually found in the jaws is false.