What is a common complication resulting from carincoma?

Carcinoma, a type of cancer that arises from epithelial cells, often leads to metastasis as a significant complication. Metastasis occurs when cancer cells spread from their original site to other parts of the body, which can severely affect the patient’s prognosis and treatment options. This spread can cause additional tumors in distant organs, making the disease more complex to manage and increasing the likelihood of various symptoms related to the new sites of growth, such as pain, organ dysfunction, and overall body system involvement.

The other choices—osteoporosis, joint pain, and fractures—are not direct complications of carcinoma itself. While these conditions can arise in a patient with cancer due to factors like treatment side effects or long-term immobility, they are not intrinsic complications caused by carcinoma as metastasis is. Therefore, the focus on metastasis as the correct answer highlights its critical role in the progression and impact of carcinoma on the patient's health.