Benign lipoblastoma: report of a case.
Light and electron microscopic studies of a benign, well circumscribed lipoblastoma in a 10-year-old boy were performed. Ultrastructural examination demonstrated lipocytes, lipoblasts, undifferentiated mesenchymal cells, and occasional hibernoma cell types. Myxoid liposarcoma as a differential diagnosis was considered. However, an absence of mitosis and the hyperchromatic and bizarre nuclei of the lipoblasts ruled out the possiblity of malignancy.
D002648:Child; D003937:Diagnosis, Differential; D006222:Hamartoma / Q000473:pathology; D006801:Humans; D008067:Lipoma / Q000473:pathology* / Q000648:ultrastructure; D008080:Liposarcoma / Q000473:pathology; D008297:Male; D013848:Thigh