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An Official Publication of the Indian Association of Oral and Maxillofacial Pathologists


 
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Year : 2011  |  Volume : 15  |  Issue : 1  |  Page : 116-118
 

Telengiectactic osteosarcoma


Department of Oral and Maxillofacial Pathology, Meenakshi Ammal Dental College, Maduravoyal, Chennai, India

Date of Web Publication26-Apr-2011

Correspondence Address:
Jose Joy Idiculla
Department of Oral and Maxillofacial Pathology, Meenakshi Ammal Dental College, Maduravoyal, Chennai
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0973-029X.80011

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How to cite this article:
Idiculla JJ, George R, Sivapathasundharam B. Telengiectactic osteosarcoma. J Oral Maxillofac Pathol 2011;15:116-8

How to cite this URL:
Idiculla JJ, George R, Sivapathasundharam B. Telengiectactic osteosarcoma. J Oral Maxillofac Pathol [serial online] 2011 [cited 2019 May 23];15:116-8. Available from: http://www.jomfp.in/text.asp?2011/15/1/116/80011


A 25-year-old man reported with swelling in the right lower jaw since five months. Clinically, a diffuse swelling Swelling on the posterior part of the mandible, right side measuring of mandible measuring 6 Χ 5 cm 2 was noted. It was hard in consistency, with bicortical expansion. No scars or sinus discharge was present. Intraorally, obliteration of buccal vestibule and lingual cortical expansion were present. The swelling was tender, with no sign of paraesthesia. No intraoral discharge was present. Radiologically, the lesion had moth-eaten appearance, with mixed radiolucency.


   Histopathology Top


  • Numerous large irregular blood-filled channels (sinusoids) supported by connective tissue septae containing multinucleated giant cells and primitive-looking mesenchymal cells [Figure 1],[Figure 2],[Figure 3],[Figure 4],[Figure 5],[Figure 6].
  • Figure 1: Sections showing numerous large endothelial lined spaces surrounded by tumor cells in certain areas. They almost resemble aneurysmal bone cyst under low power (H and E section, 4×)

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    Figure 2: Sections showing numerous large endothelial lined spaces surrounded by tumor cells in certain areas. They almost resemble aneurysmal bone cyst under low power (H and E section, 4×)

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    Figure 3: Sections showing numerous large endothelial lined spaces surrounded by tumor cells in certain areas. They almost resemble aneurysmal bone cyst under low power (H and E section, 4×)

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    Figure 4: Sections showing numerous large endothelial lined spaces surrounded by tumor cells in certain areas. They almost resemble aneurysmal bone cyst under low power (H and E section, 4×)

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    Figure 5: Sections showing tumor cells along with osteoid formation (H and E section, 10×)

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    Figure 6: Sections showing tumor cells along with osteoid formation (H and E section, 10×)

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  • Sinusoidal spaces partially lined by endothelial cells cells and containing extravasated RBCs.
  • Highly pleomorphic and hyperchromatic mesenchymal cells resembling atypical osteoblasts were seen throughout the section [Figure 7],[Figure 8],[Figure 9],[Figure 10],[Figure 11],[Figure 12],[Figure 13],[Figure 14].
  • Figure 7: Sections showing tumor cells along with osteoid formation (H and E section, 10×)

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    Figure 8: Sections showing tumor cells along with osteoid formation (H and E section, 10×)

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    Figure 9: Sections showing malignant osteoblasts with osteoid production and dystrophic calcifications (H and E section, 40×)

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    Figure 10: Sections showing malignant osteoblasts with osteoid production and dystrophic calcifications (H and E section, 40×)


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    Figure 11: Sections showing malignant osteoblasts with osteoid production and dystrophic calcifications (H and E section, 40×)


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    Figure 12: Sections showing malignant osteoblasts with osteoid production and dystrophic calcifications (H and E section, 40×)


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    Figure 13: Sections showing malignant osteoblasts with osteoid production and dystrophic calcifications (H and E section, 40×)


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    Figure 14: Sections showing malignant osteoblasts with osteoid production and dystrophic calcifications (H and E section, 40×)


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  • Osteoid formation and dystrophic calcifications were noted.

   Differential Diagnosis Top


Aneurysmal bone cyst has thin rims with well-defined inner margins and septae surrounding the large blood-filled vascular spaces.

Conventional osteosarcoma shows tumor cells which are capable of producing extracellular matrix that may be osseous, cartilaginous or fibrous in various proportions with production of osteoid.


   Final Diagnosis Top


Telangiectatic osteosarcoma


    Figures

  [Figure 1], [Figure 2], [Figure 3], [Figure 4], [Figure 5], [Figure 6], [Figure 7], [Figure 8], [Figure 9], [Figure 10], [Figure 11], [Figure 12], [Figure 13], [Figure 14]


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