Abstract
PRIMARY reticulum-cell sarcoma of bone is a malignant process that arises in a single focus in bone and is capable of both regional and distant metastasis. It is moderately sensitive to radiation. Those affected are young adults, with a slight male preponderance. The long bones, particularly the femur, are most commonly involved.1 Histologically, primary reticulum-cell sarcoma of bone is often recognized as one of the so-called round-cell sarcomas. It consists of sheets of pleomorphic round or oval cells with eccentric nuclei, sparse stroma and some reticulum fibers between the cells.2 Local pain and swelling are the most common presenting complaints. . . .