What this CT shows
Reading File
Finding Sources
Searching Images
intracerebral hemorrhage CT scan basal ganglia
Here is a systematic interpretation of this non-contrast CT head series (from Hanumant Hospital, Mahuva):
CT Head — Key Findings
Most Prominent Abnormality: Right Basal Ganglia / Thalamic Intracerebral Hemorrhage (ICH)
Looking at the bottom-right slice (top row of the vertex cuts), there is a clearly visible hyperdense (bright white) lesion in the right hemisphere — this is acute blood, which appears hyperdense on non-contrast CT due to clot retraction and high protein content of hemoglobin.
Slice-by-slice analysis:
| Level | Finding |
|---|---|
| Posterior fossa / cerebellum (top row) | Cerebellar hemispheres appear symmetric; no obvious cerebellar hemorrhage |
| Midbrain / basal ganglia level (rows 2–3) | Hyperdense focus in the right basal ganglia/thalamic region — consistent with acute ICH. There is suggestion of mass effect with possible compression of the right lateral ventricle |
| Lateral ventricle level (rows 3–4) | The ventricles appear mildly asymmetric; the right lateral ventricle may be compressed |
| Cortical level (bottom row) | The rightmost slice of the bottom row shows a dense hyperdense lesion — likely the same hematoma visualized at a higher cut, or a separate cortical/subcortical component |
| Sulci & gyri | Sulcal effacement on the right side compared to the left — indicating focal cerebral edema around the hemorrhage |
Summary Impression
Acute spontaneous intracerebral hemorrhage (ICH), most likely in the right basal ganglia–thalamic region, with:
- Hyperdense hematoma (acute blood)
- Surrounding hypodense rim — early perilesional vasogenic edema
- Mass effect — ipsilateral ventricular compression
- No obvious midline shift at this stage, but this needs confirmation on the axial cuts
Likely Etiology (clinical correlation required)
| Most Common Cause | Features |
|---|---|
| Hypertensive ICH | Most common; basal ganglia/thalamus is the classic location (~60% of hypertensive bleeds) |
| AVM / vascular malformation | Would need CT angiography |
| Hemorrhagic transformation of ischemic stroke | Less likely without prior infarct history |
| Coagulopathy / anticoagulant use | Should be ruled out with INR/PT |
Recommended Next Steps
- Urgent neurosurgery consult — evaluate for surgical evacuation depending on hematoma volume (ABC/2 formula), GCS, and clinical status
- CT Angiography — to rule out underlying AVM, aneurysm, or cavernoma (especially in younger patients)
- Blood pressure control — target SBP <140 mmHg per current guidelines
- Coagulation profile — PT, INR, aPTT, platelet count
- Repeat CT in 6–24 hours — to assess for hematoma expansion
⚠️ Important: This is an educational interpretation of the CT image. Definitive radiological reporting must be done by a qualified radiologist with access to the full DICOM series and clinical history. This CT suggests a neurological emergency requiring immediate clinical assessment.
What this CT shows
This is a non-contrast CT head series from Meenakshi Diagnostics, dated May 07, 2026. Here is a systematic interpretation:
CT Head — Key Findings
Overall First Impression
The brain parenchyma appears diffusely hypodense (darker than normal) across most slices, with loss of gray-white matter differentiation in multiple regions. The sulci and ventricles require careful assessment.
Slice-by-Slice Analysis
| Level | Finding |
|---|---|
| Posterior fossa / skull base (Row 1) | Cerebellum appears relatively preserved; brainstem structures visible; mastoid air cells appear clear bilaterally |
| Midbrain / pons level (Row 2) | Basal cisterns appear effaced/compressed — this is a critical sign of raised intracranial pressure (ICP). Subtle loss of definition of the perimesencephalic cisterns |
| Basal ganglia / thalamus level (Row 3) | Loss of gray-white differentiation at the level of the basal ganglia bilaterally. The lentiform nuclei and thalami are poorly demarcated — suggests diffuse cerebral edema |
| Lateral ventricle level (Row 4) | Ventricles appear slit-like and compressed — consistent with diffuse cerebral swelling. No focal hyperdense lesion (no obvious acute hemorrhage at this level). Sulci are effaced bilaterally |
| High convexity / vertex (Row 5) | Sulci are markedly reduced/absent — severe sulcal effacement indicating raised ICP with cerebral edema |
Major Findings Summary
1. Diffuse Cerebral Edema
- Generalized loss of gray-white differentiation
- Sulcal effacement throughout
- Slit-like compressed ventricles
- Effacement of basal cisterns
2. No Obvious Focal Hyperdense Lesion
- No acute intracerebral hemorrhage is clearly visible
- No obvious mass lesion
3. Signs of Raised Intracranial Pressure
- Cisternal compression
- Midline appears relatively preserved but requires careful assessment
Differential Diagnosis
| Condition | Supporting Features |
|---|---|
| Hypoxic-Ischemic Encephalopathy (HIE) | Diffuse gray-white loss, bilateral symmetric changes — most consistent pattern |
| Diffuse Axonal Injury (DAI) / Severe TBI | Post-traumatic diffuse edema |
| Hypertensive Encephalopathy | Diffuse edema, clinical correlation needed |
| Meningitis / Encephalitis | Diffuse edema with sulcal effacement |
| Metabolic encephalopathy | Diffuse symmetric changes |
The pattern of diffuse bilateral cerebral edema with loss of gray-white differentiation is most consistent with Global Hypoxic-Ischemic Injury — a pattern seen after cardiac arrest, drowning, severe hypotension, or respiratory failure.
Classic Sign to Look For Here
"Reversal Sign" — In severe HIE, the cerebellum appears relatively hyperdense (brighter) compared to the diffusely hypodense cerebrum. Looking at Row 1, the cerebellum does appear relatively brighter than the supratentorial brain — this is the "white cerebellum sign", a marker of severe, often irreversible diffuse cerebral hypoxia.
Recommended Actions
- Immediate neurocritical care / ICU — this pattern indicates a life-threatening neurological emergency
- ICP monitoring consideration
- MRI brain with DWI — more sensitive for ischemic injury; will show diffusion restriction in affected areas
- Clinical history essential — cardiac arrest? drowning? trauma? sepsis?
- EEG — assess for non-convulsive status epilepticus
- Prognostication — diffuse HIE on CT carries a very poor prognosis
⚠️ Disclaimer: This is an educational image interpretation. Formal radiological reporting must be performed by a qualified radiologist with full DICOM access and complete clinical history. This CT pattern represents a critical neurological emergency requiring immediate management.
This is a shared conversation. Sign in to Orris to start your own chat.