Which condition may exhibit symptoms of cold extremities and decreased appetite?

The condition associated with symptoms of cold extremities and decreased appetite is right-sided heart failure. In right-sided heart failure, the right side of the heart does not pump blood effectively, which can lead to poor circulation and a buildup of fluid in the tissues. This insufficient blood flow can result in cold extremities as the body's peripheral circulation is compromised. Additionally, the body may divert energy and resources away from non-essential functions like appetite, leading to decreased interest in food and subsequent weight loss.

Meanwhile, left-sided heart failure typically presents with symptoms like shortness of breath and fluid accumulation in the lungs, which is not directly associated with cold extremities and decreased appetite. Diabetes mellitus can cause various symptoms related to blood sugar levels but does not specifically align with both cold extremities and decreased appetite as core indicators. Chronic obstructive pulmonary disease mostly manifests with respiratory symptoms, such as difficulty breathing and chronic cough, rather than the symptoms stated.