Pleomorphic leiomyosarcoma of the maxilla with metastasis to the colon: A case report.

Alnajjar, Asma; Alfadda, Abdulrahman; Alqaraawi, Abdullah Mohammad; Alajlan, Bader; Atallah, Jean Paul; AlHussaini, Hussah Fahad.

Afiliação

Alnajjar A; Section of Gastroenterology, Department of Medicine, King Faisal Specialist Hospital & Research Centre, Riyadh 11211, Saudi Arabia.
Alfadda A; Section of Gastroenterology, Department of Medicine, King Faisal Specialist Hospital & Research Centre, Riyadh 11211, Saudi Arabia. abalfadda@gmail.com.
Alqaraawi AM; Section of Gastroenterology, Department of Medicine, King Faisal Specialist Hospital & Research Centre, Riyadh 11211, Saudi Arabia.
Alajlan B; Section of Gastroenterology, Department of Medicine, King Faisal Specialist Hospital & Research Centre, Riyadh 11211, Saudi Arabia.
Atallah JP; Department of Oncology, King Faisal Specialist Hospital & Research Centre, Riyadh 11211, Saudi Arabia.
AlHussaini HF; Department of Pathology, King Faisal Specialist Hospital & Research Centre, Riyadh 11211, Saudi Arabia.

World J Gastrointest Endosc ; 16(6): 361-367, 2024 Jun 16.

Article em En | MEDLINE | ID: mdl-38946849

ABSTRACT

BACKGROUND:

Pleomorphic leiomyosarcomas make up around 8.6% of all leiomyosarcomas. They behave aggressively and often have poor prognoses. They can affect the gastrointestinal tract and retroperitoneum. To date, pleomorphic leiomyosarcoma involving the mesocolon have been reported in nine patients. CASE

The patient was a 44-year-old man with a history of pleomorphic leiomyosarcoma of the left maxilla with metastasis to the lung and liver. His most recent positron emission tomography-computed tomography (PET-CT) scan showed uptake in the ascending and transverse colons. A colonoscopy revealed a 5.0 cm × 3.5 cm × 3.0 cm pedunculated polyp in the ascending colon. The polyp was removed using hot snare polypectomy technique and retrieved with Rothnet. Histopathologic examination of the polyp showed a metastatic pleomorphic leiomyosarcoma.