Scans

Clinical History: Glioblastoma, highly methylated. Surgery September 2025. Radiotherapy completed November 2025 and continues on adjuvant chemotherapy.

Report: Comparison: MRI dated 20th September 2025. The right posterior temporal resection cavity has contracted. There is minimal non-specific linear enhancement at the margins of the surgical bed. No solid enhancing component is identified. There is minimal adjacent white matter T2 hyperintensity and no localised mass effect.

A shallow extradural collection is noted beneath the small craniotomy bone flap.

Conclusion: Expected posttreatment appearances. No evidence of progressive disease.

Clinical history:

“Glioblastoma, highly methylated. Surgery September 2025. Radiotherapy completed November 2025 and continues on adjuvant chemotherapy.”

Meaning:

• They know your tumour type.
• They note the key favourable factor: MGMT methylation.
• They record that you had:
  • surgery
  • radiotherapy
  • ongoing temozolomide chemotherapy

This just gives context for interpreting the scan.

The Actual Scan Findings

“The right posterior temporal resection cavity has contracted.”

Plain English: The hole left after the tumour was removed is shrinking.

Why this is good:

• This is normal healing after surgery.
• It suggests no new tumour filling the space.

“There is minimal non-specific linear enhancement at the margins of the surgical bed.”

Translation: A very small thin line of contrast uptake around the surgery site.

Why this is not concerning:

• After surgery and radiotherapy, the edges of the surgical area often light up slightly on MRI.

• This usually represents:
  • scar tissue
  • healing blood vessels
  • treatment effect

The important word here is “minimal”.

“No solid enhancing component is identified.”

This is one of the most important lines in the report.

It means:

There is no visible tumour regrowth.

Radiologists look specifically for solid nodules of enhancement, which can indicate recurrence.

They explicitly state none are present.

“There is minimal adjacent white matter T2 hyperintensity.”

Plain English: There is a small amount of mild inflammation/swelling in nearby brain tissue.

This is extremely common after:

• surgery
• radiotherapy

The key word again is minimal.

“No localised mass effect.”

Meaning:

• Nothing is pushing on or compressing the brain.

If a tumour were growing back aggressively, doctors often see:

• pressure on surrounding brain structures.

You do not have this.

“A shallow extradural collection is noted beneath the small craniotomy bone flap.”

Translation: There is a small fluid collection under the bone flap where they opened the skull.

This is very common after brain surgery.

It is usually:

• a bit of fluid
• sometimes a small amount of old blood
• part of normal healing

They describe it as shallow, meaning small.

The Most Important Part: The Conclusion

“Expected post-treatment appearances. No evidence of progressive disease.”

This is exactly what doctors hope to see.

It means:

• The scan looks normal for someone who has had surgery + radiotherapy + chemo
• There is no sign the tumour is growing back
• Nothing concerning was detected