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  • Title: Fine-needle aspiration biopsy of solid aneurysmal bone cyst in the humerus.
    Author: Yamamoto T, Nagira K, Akisue T, Marui T, Hitora T, Kawamoto T, Yoshiya S, Kurosaka M, Tsukamoto R.
    Journal: Diagn Cytopathol; 2003 Mar; 28(3):159-62. PubMed ID: 12619099.
    Abstract:
    We report the fine-needle aspiration biopsy (FNAB) cytology findings of a solid aneurysmal bone cyst in the left humerus of a 69-yr-old woman. Radiographically, the lesion showed an extensive, relatively well-defined osteolysis in the diaphysis, with a pathologic fracture. FNAB smears of the lesion consisted of benign, mononuclear cells and numerous osteoclast-like multinucleated giant cells. Some clusters of the mononuclear cells were closely associated with dense, homogeneous, extracellular, matrix material. To our knowledge, the FNAB features of solid ABC of the long bones have not been described previously in the English-language literature. The cytologic features are indistinguishable from those of giant cell tumors of bone and brown tumors of hyperparathyroidism.
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