# Collision tumor of small cell carcinoma and squamous cell carcinoma of the maxillary sinus: Case report
> Sugianto I.

URL kanonis: https://discover.unhas.ac.id/publications/collision-tumor-of-small-cell-carcinoma-and-squamous-cell-carcinoma-of-the-maxil
Jurnal / Konferensi: Molecular and Clinical Oncology
Tahun terbit: 2022
DOI: https://doi.org/10.3892/mco.2022.2529
ISSN: 20499450
Kuartil SJR: Q3
Citations: 4

## Authors
- Sugianto I.

## Abstract
A collision tumor refers to the coexistence of two diagnostically distinct tumors in a common anatomic space. Collision tumors are rare in the oral and maxillofacial region. The present study reported on the case of an 82-year-old female with a collision tumor in the maxillary sinus consisting of small cell carcinoma (SmCC) and squamous cell carcinoma (SCC). Computed tomography (CT) imaging revealed a mass in the right maxillary sinus. The lesion exhibited heterogeneous low signal intensity (SI) on T1-weighted imaging (T1WI), high SI on short T1 inversion recovery and heterogeneous solid enhancement on contrast-enhanced T1WI. The histopathology result of a biopsy specimen confirmed SmCC. After the patient received a course of chemoradiotherapy, follow-up CT revealed a residual tumor. In a second surgery, a remaining tumor and histopathology revealed SCC with no evidence of SmCC. The final diagnosis was a collision tumor made up of SCC and SmCC.

## Keywords
- Histopathology
- Maxillary sinus
- Medicine
- Biopsy
- Pathology
- Cancer
- Chemoradiotherapy
- Lesion
- Radiology
- Carcinoma
- Radiation therapy
- Anatomy
- Internal medicine

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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