What is a common manifestation seen in fat embolism but not in blood clot embolism?

A common manifestation of fat embolism that distinguishes it from blood clot embolism is the presence of petechiae. Fat embolism syndrome often presents with characteristic petechial rash, particularly around the eyes and in the axillae, which occurs due to the occlusion of small blood vessels by fat globules.

In contrast, blood clots typically cause more systemic effects related to perfusion and oxygenation issues but do not usually result in this type of skin manifestation. While individuals with either type of embolism may experience increased heart rate, hypoxia, and chest pain due to the underlying complications, the petechiae seen in fat embolism is a hallmark clinical sign not typically associated with blood clot embolism. Recognizing this specific symptom can aid in the timely diagnosis and management of fat embolism syndrome.