A new parameter of ultrasonic measurement for follow-up of choroidal metastasis / 国际眼科杂志(Guoji Yanke Zazhi)

ABSTRACT

AIM: To report the usefulness of a new parameter (maximum cross sectional area) in the measurements of B-scan ultrasonography to evaluate the progress of choroidal metastatic tumour size during the follow-up of patient.METHODS: Case report-the B-scan ultrasonographic measurements of height, base and maximum cross sectional area during the follow-up of the patient are presented.RESULTS: A 62-year-old Chinese lady, known case of non-small cell lung carcinoma, presented with painless blurring of vision in the right eye. She was diagnosed to have bilateral choroidal metastasis (advanced in the right eye and early in the left eye) with good vision in both eyes. The tumour size in the right eye reduced significantly after the first chemotherapy; but increased again 6 weeks after the end of last cycle of chemotherapy. She was given radiotherapy and another course of chemotherapy. The tumour size in the right eye did not respond much later on. However, the tumour size in the left eye was static through out the follow up period of 2years. The patient maintained best corrected visual acuity in both eyes (6/9 in right eye and 6/6 in left eye). The progress of tumour size in right eye was evaluated with serial B-scan ultrasonographic measurements.CONCLUSION: The ultrasonographic measurements were reproducible all through the follow up period and coincided well with clinical appearance of the tumour in right eye. We suggest the use of B-scan ultrasonography in the follow up of patients with elevated choroidal masses for quantitative assessment of progression/regression in their size during the treatment period.