Related Experiment Videos
Chronic expanding hematoma in the temporal region
Hideyuki Tada1, Mitsuo Hatoko, Aya Tanaka
1Division of Plastic Surgery, Nara Medical University, Nara, Japan. h-tada@topaz.ocn.ne.jp
The Journal of Craniofacial Surgery
|June 14, 2006
Summary
A rare chronic expanding hematoma, initially from childhood trauma, grew into a large temporal mass over 12 years. Surgical resection confirmed the diagnosis of this slow-growing subcutaneous tumor.
Area of Science:
- Neurology
- Pathology
Background:
- Chronic expanding hematoma is a rare condition, often associated with trauma.
- This case highlights a delayed presentation in the temporal region.
Observation:
- A patient presented with a slowly growing mass in the right temporal region over 12 years.
- A history of blunt trauma to the same area at 4 months of age was noted.
- Computed tomography revealed a well-circumscribed subcutaneous tumor.
Findings:
- The tumor was completely resected.
- Histopathological examination confirmed the diagnosis of chronic expanding hematoma.
Implications:
- This case underscores the importance of considering chronic expanding hematoma in the differential diagnosis of slowly growing temporal masses.
- Long-term follow-up may be necessary for trauma-related lesions.
Related Concept Videos
Increased Intracranial Pressure l: Introduction
Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...
Hemorrhagic Stroke ll: Pathophysiology
A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
Increased Intracranial Pressure ll: Pathophysiology
Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins with...
Brain Abscess l: Introduction
A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...
Hemorrhagic Stroke l: Introduction
A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
Cerebral Edema ll: Pathophysiology
Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...