Stage 4S neuroblastoma, a disseminated tumor with excellent outcome.
To review the clinical features and outcome of all cases of stage 4S neuroblastoma treated at our center.
We retrospectively reviewed the files of all patients (n=75) with neuroblastoma treated at King Abdul-Aziz Medical City, Jeddah, Kingdom of Saudi Arabia between 1986 and 2005. We studied the clinical features and outcome of patients with stage 4S neuroblastoma.
Six patients (8%) were confirmed to have stage 4S neuroblastoma. Three were boys with a median age at diagnosis of 4.5 months (range 28 days-11 months). Four patients required no intervention. The remaining 2 patients were treated with chemotherapy due to progressive hepatomegaly and respiratory distress. No patient required radiotherapy or surgical intervention. With a median follow up of 4 years (range 9 months-15.5 years), all patients are alive and well. Two patients continue to have a residual abdominal mass, while complete resolution occurred in the others.
Stage 4S neuroblastoma is a special tumor that carries excellent prognosis. Spontaneous regression may occur and intervention is only required in symptomatic patients.
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