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Summary
Computed tomography (CT) aids in diagnosing retinoblastoma, the most common childhood eye cancer. CT scans reveal calcified intraocular masses and can detect tumor extension, guiding treatment decisions.
Area of Science:
- Ophthalmology
- Pediatric Oncology
- Radiology
Background:
- Retinoblastoma is the most common primary malignant intraocular tumor in children.
- Clinical signs include leukocoria and strabismus.
- Opaque ocular media necessitates advanced imaging like CT and ultrasonography for diagnosis.
Purpose of the Study:
- To present the results of CT examinations in patients with retinoblastoma.
- To evaluate the characteristic CT findings of retinoblastoma.
- To assess the utility of CT in detecting tumor extension and metastasis.
Main Methods:
- CT examinations were performed on 23 patients with histologically confirmed retinoblastoma.
- Patients' mean age was two years.
- Radiologic screening procedures for metastasis were discussed.
Main Results:
- The characteristic CT finding was a partly calcified intravitreous mass lesion, typically confined within the eyeball.
- Two cases demonstrated retrobulbar extension.
- Two cases showed intracranial tumor extension; no distant metastasis was detected.
Conclusions:
- CT is crucial for diagnosing retinoblastoma, especially with opaque ocular media.
- CT effectively identifies intraocular tumors, calcification, and potential orbital and intracranial extension.
- Recommended CT of orbits and brain for suspected retinoblastoma to detect tumor and extension.