History: A 19 year old woman with a five month history of right knee pain was radiographically found to have an 8.0 cm loculated well-defined, bubble-type lytic lesion with sclerotic borders involving the distal right femur in the meta-diaphyseal region (Fig. 1). The epiphysis was not involved.“August 2008: A 19 y.o. woman with a lytic femoral lesion”Continue reading

History: Nine years after being diagnosed and successfully treated for an intracystic papillary carcinoma of the left breast, a 65 year old woman presented with a large firm mass in the contralateral (right) breast. A radical mastectomy with axillary lymph node dissection was performed. “July 2008: A 65 y.o. woman with a large mass in the right breast”Continue reading

History: A 19 year-old male with an increasingly painful right arm was found by x-ray to have a circumscribed lytic lesion located in the proximal humeral epiphysis (Fig. 1).“June 2008: A 19 y.o. man with a painful mass in the humerus”Continue reading

History: A 44 y.o. woman complaining of right flank pain was found to have a large retroperitoneal mass arising adjacent to the right adrenal gland (Fig. 1). At surgery, a 4,250 gram, 25.0 x 18.0 x 10.0 cm well-circumscribed multinodular mass with firm yellow gray-tan lobulated cut surfaces was removed (Fig. 2). A recurrence was detected ten months later and confirmed by FNA.“May 2008: A 44 y.o. woman with a huge retroperitoneal mass”Continue reading