# Spontaneous Resolution of Radiotherapy-induced Craniopharyngioma Cyst

## TL;DR

An 8-year-old girl's craniopharyngioma cyst, which grew after radiotherapy, spontaneously resolved without further treatment.

## Contribution

This case highlights that cystic enlargement after radiotherapy may not always require intervention.

## Key findings

- Cystic enlargement occurred after radiotherapy in a craniopharyngioma patient.
- The cyst spontaneously resolved with close monitoring.
- This suggests that not all post-radiotherapy enlargements indicate treatment failure.

## Abstract

Craniopharyngioma cyst enlargement after surgery and radiation therapy is often presumed to represent a treatment failure, instigating further management strategies. We present an eight-year-old girl with a small intrasellar residuum post-resection who then developed cystic enlargement post-radiotherapy. With close surveillance, the cyst spontaneously resolved.