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Invasive ductal carcinoma of the breast with osteoclast-like giant cells and clear cell features: a case report of a novel finding and review of the literature. World J Surg Oncol 2016; 14:227. [PMID: 27561329 PMCID: PMC5000466 DOI: 10.1186/s12957-016-0982-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 08/13/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Osteoclast-like giant cells (OLGCs) are a rare histologic finding within a tumor of the breast. Although there has been discussion as to the pathogenesis and prognosis related to this finding, our understanding of its significance remains inconclusive. Clear cells are another unique histologic finding in breast tumors and are typically associated with tumors arising in other organs such as renal cell carcinoma. CASE PRESENTATION This is a case report of a 64-year-old female who presented with one tumor identified as invasive ductal carcinoma with a combination of OLGCs and clear cell features. CONCLUSIONS To our knowledge, this combination of findings has not been previously described in the literature and therefore represents another morphologic manifestation of breast carcinoma. As patients are diagnosed earlier and live longer, a growing number of these rare variants may be recognized and provide opportunities to further our understanding of the associated molecular pathways which could contribute to the possibility of therapeutic intervention.
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Saito R, Fujishima F, Nakamura Y, Hoshikawa Y, Tominaga J, Taniuchi S, Kasajima A, Watanabe M, Okada Y, Sasano H. A case of pulmonary adenocarcinoma harboring osteoclast-like giant cells: Its evaluation by immunohistochemical and genetic analyses. Pathol Int 2016; 66:224-9. [PMID: 26939759 DOI: 10.1111/pin.12395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 01/18/2016] [Accepted: 01/28/2016] [Indexed: 11/28/2022]
Abstract
Tumors harboring osteoclast-like giant cells (OGCs) at extraosseous site are extremely rare. These rare tumors have been detected most frequently in the pancreas and few pulmonary tumors harboring OGCs have been previously reported. In addition, the genetic profiles of these tumors have remained virtually unknown. Therefore, we report a case of pulmonary adenocarcinoma harboring OGCs in which k-ras mutation and immunohistochemical study of proteins associated with OGCs were examined. The case was a 70-year-old man, who demonstrated a pulmonary mass associated with unusual radiological features. Histopathologically, three different cell types, mucinous adenocarcinoma cell, OGC and mononuclear cell were detected. OGCs were immunohistochemically negative for epithelial markers and positive for histiocytic markers but mononuclear cells were immunopositive for epithelial markers. In addition, both mononuclear and adenocarcinoma cells had the same k-ras mutation profiles and mononuclear cells were immunohistochemically positive for macrophage colony-stimulating factor (M-CSF), one of the factors associated with OGC differentiation. Therefore, mononuclear cells were considered to be derived from neoplastic epithelium and OGCs could represent non-neoplastic cells. In addition, M-CSF locally produced could promote the differentiation of OGCs.
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Affiliation(s)
- Ryoko Saito
- Department of Pathology, Tohoku University School of Medicine, Miyagi, Japan
| | | | - Yasuhiro Nakamura
- Department of Pathology, Tohoku University School of Medicine, Miyagi, Japan
| | - Yasushi Hoshikawa
- Department of Thoracic Surgery, Tohoku University Hospital, Miyagi, Japan
| | - Junya Tominaga
- Department of Radiology, Tohoku University Hospital, Miyagi, Japan
| | - Shinji Taniuchi
- Department of Pathology, Tohoku University Hospital, Miyagi, Japan
| | - Atsuko Kasajima
- Department of Pathology, Tohoku University Hospital, Miyagi, Japan
| | - Mika Watanabe
- Department of Pathology, Tohoku University Hospital, Miyagi, Japan
| | - Yoshinori Okada
- Department of Thoracic Surgery, Tohoku University Hospital, Miyagi, Japan
| | - Hironobu Sasano
- Department of Pathology, Tohoku University School of Medicine, Miyagi, Japan.,Department of Pathology, Tohoku University Hospital, Miyagi, Japan
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