Primary osteogenic sarcomas of the breast are exceptionally uncommon. We describe such a case occurring in a 50 year-old woman who presented with a large painful mass in her left breast. Simple mastectomy of the left breast was performed. Microscopical and immunohistochemical findings established the diagnosis of primary osteogenic sarcoma. Similar to extremity osteosarcoma, adjuvant adriamycin and cisplatin based chemotherapy and external beam radiotherapy was given to the present case. She remained well 57 months later, without tumor recurrence. The current article made a literature search proving the rarity of this lesion type and discusses in detail the diagnostic implications and the treatment of this rare site tumor entity.

We hereby report the occurrence of mediastinal liposarcoma in a 11-year-old female child. Dyspnea and wheezing of long-standing duration were the presenting complaints and a preoperative biopsy failed to yield the diagnosis. Histologic examination revealed heterogeneous areas with well-differentiated liposarcoma-like areas, areas resembling myxoid liposarcoma, and areas of dedifferentiation. Osteosarcomatous foci and whorled areas reminiscent of meningioma were identified in the dedifferentiated areas. Liposarcomas in the mediastinum are extremely rare tumors of childhood and the present case showed unusual histologic features. Complete surgical excision with clear surgical margins remains the primary modality of treatment, although chemotherapy and radiotherapy have been tried.

Supratentorial anaplastic ependymoma is an uncommon tumor which can rarely present as a cyst with mural nodule on imaging. Authors present this unusual radiological appearance of supratentorial extraventricular anaplastic ependymoma in a 9-year-old boy.