Extracerebral cavernous hemangiomas, also known as extracranial cavernous hemangiomas, are rare vascular abnormalities that affect the soft tissues outside the brain. Despite the complexity of the term, there are no direct synonyms for it. However, breaking down the phrase into simpler terms can help shed light on its meaning. "Extracerebral" refers to anything outside the brain, while "cavernous" means having cavities or hollow spaces. "Hemangioma" denotes a type of abnormal growth formed by blood vessel clusters. Therefore, some related terms could be "soft tissue vascular abnormalities", "abnormal growths outside the brain" or "cavities in non-cranial areas caused by blood vessel clusters."