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Vol. 57. Issue 3.
Pages 225-229 (July - September 2024)
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Vol. 57. Issue 3.
Pages 225-229 (July - September 2024)
Brief report
Telangiectatic osteosarcoma of the mandible—A rare case report and an insight into differential diagnosis
Osteosarcoma telangiectásico de mandíbula: presentación de un caso raro y panorama del diagnóstico diferencial
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Priya Kumara, Bhaskar Narayanb,
Corresponding author
bhaskarnarayan9191@gmail.com

Corresponding author.
, Aadithya B. Ursb, Sujata Mohantyc, Jeyaseelan Augustineb, Paminder Singhc, Nita Khuranad
a Department of Oral & Maxillofacial Pathology and Microbiology, Maulana Azad Institute of Dental Sciences, India
b Department of Oral & Maxillofacial Pathology and Microbiology, Maulana Azad Institute of Dental Sciences, New Delhi, India
c Department of Oral and Maxillofacial Surgery, Maulana Azad Institute of Dental Sciences, New Delhi, India
d Director Professor and Head, Department of Pathology, Maulana Azad Medical College, New Delhi, India
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Table 1. Reported cases of telangiectatic osteosarcoma in the jaw bones to date.
Table 2. Differential diagnosis for telangiectatic osteosarcoma.12–14
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Abstract

Telangiectatic osteosarcoma (TOS) is a rare variant of osteosarcoma that typically affects young individuals and long bones. The case under discussion was seen in the mandible of a 57-year-old female and had rapidly grown in size within a week. Microscopically, the tumour was characterised by large vascular cavities surrounded by anaplastic cells. Thin lacy tumour osteoid was observed at various foci. Abundant multinucleated osteoclastic giant cells along with areas of necrosis were also noted. The tumour cells were positive for SATB2, while negative for Cytokeratin AE1/3, CD 34. Ki-67 positivity was observed in more than 50% of tumour cells. A diagnosis of high grade telangiectatic osteosarcoma was thus made.

Keywords:
Telangiectatic osteosarcoma
Malignant osteoid
SATB2
Mandible
Resumen

El osteosarcoma telangiectásico (OST) es una variante rara de osteosarcoma que aparece principalmente en personas jóvenes de huesos largos. El caso que presentamos se observó en la mandíbula de una mujer de 57 años. Su tamaño había crecido rápidamente en el transcurso de una semana. Microscópicamente, el tumor se caracterizaba por grandes cavidades vasculares rodeadas de células anaplásicas, con presencia de osteoide tumoral fino en focos. También se observaron abundantes células gigantes multinucleadas de tipo osteoclástico junto con áreas de necrosis. Las células tumorales fueron positivas para SATB2, mientras que fueron negativas para la citoqueratina AE1/3, CD 34. Se observó positividad de Ki-67 en más del 50% de las células tumorales. Por lo tanto, se estableció el diagnóstico de osteosarcoma telangiectásico de alto grado.

Palabras clave:
Osteosarcoma telangiectásico
Osteoide maligno
SATB2
Mandíbula

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