Intracranialis

Intracranialis is a term used in medical contexts to refer to something located within the cranium, i.e., inside the skull. It is essentially a variant spelling or Latinized form of intracranial, though intracranial is the standard English term. The intracranial space houses the brain parenchyma, the meningeal coverings (dura mater, arachnoid mater, and pia mater), the ventricular system and cerebrospinal fluid, and the intracranial blood vessels.

Conditions described as intracranial involve disorders affecting these structures, including traumatic brain injury, intracranial hemorrhages (epidural, subdural, subarachnoid, and intraparenchymal hemorrhages), brain tumors, hydrocephalus, infections such as meningitis or encephalitis, and edema with potential herniation. Symptoms and management are often determined by the location and extent of pathology within the skull.

Diagnosis frequently relies on imaging techniques such as computed tomography (CT) and magnetic resonance imaging (MRI), which provide information about brain tissue, blood vessels, and the ventricular system. Monitoring intracranial pressure is important in many emergencies and is performed in specialized clinical settings. Treatment aims to protect brain tissue, relieve mass effect, control bleeding or infection, and address hydrocephalus, using a combination of medical and surgical approaches when necessary.

Anatomically, the intracranial compartment is distinct from extracranial spaces and from tissues outside the skull. The term intracranialis is rarely used outside certain contexts; in modern English medical writing, intracranial remains the preferred term.

Etymology: from Latin intra 'within' and cranium 'skull'.