tailieunhanh - Báo cáo y học: " Solid variant of aneurysmal bone cyst of the heel: a case report"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Solid variant of aneurysmal bone cyst of the heel: a case report. | Lekka et al. Journal of Medical Case Reports 2011 5 145 http content 5 1 145 JOURNAL OF MEDICAL CASE REPORTS CASE REPORT Open Access Solid variant of aneurysmal bone cyst of the heel a case report 1 1 1 2 Joanna A Lekka Theofani V Gavresea Gabriela A Stanc-Giannakopoulos and Nikolaos S Demertzis Abstract Introduction An aneurysmal bone cyst is a benign but often rapidly expanding osteolytic multi-cystic osseous lesion that occurs as a primary secondary intra-osseous extra-osseous solid or conventional lesion. It frequently coexists with other benign and malignant bone tumors. Although it is considered to be reactive in nature there is evidence that some aneurysmal bone cysts are true neoplasms. The solid variant of aneurysmal bone cyst is a rare subtype of aneurysmal bone cyst with a preponderance of solid to cystic elements. Such a case affecting the heel an unusual site is reported. Case presentation A 26-year-old Caucasian man presented with pain and swelling in his left lower extremity. A plain radiograph demonstrated an intra-osseous solitary eccentric mass in the front portion of the left heel. Computed tomography and magnetic resonance imaging scans showed that the lesion appeared to be subcortical solid with a small cystic portion without the characteristic fluid-fluid level detection but with distinct internal septation. Bone images containing fluid-fluid levels are usually produced by aneurysmal bone cysts. The fluid-fluid level due to bleeding within the tumor followed by layering of the blood components based density differences but it was not seen in our case. An intra-lesional excision was performed. Microscopic examination revealed fibrous septa with spindle cell fibroblastic proliferation capillaries and extensive areas of mature osteoid and reactive woven bone formation rimmed by osteoblasts. The spindle cells had low mitotic activity and atypical forms were absent. The histological features of the lesion were consistent

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