Abstracts

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E1903. All That Glitters is Not Cancer
Authors
  1. Wilton Ocana; Instituto Brasileiro de Controle de Câncer
  2. Karol Bernal; Beneficência Portuguesa de São Paulo
  3. Daniel Rangel; Instituto Brasileiro de Controle de Câncer
  4. Pedro Ivo Ravizzini; Brotherhood of the Holy House of Mercy of São Paulo
  5. Rut Ocana; Antenor Orrego Private University
  6. Martha Ocana; César Vallejo University
Background
Demonstrate that tomography-guided percutaneous lung biopsy is a safe and efficient method for the diagnosis of uptake 18F-Fluordeoxiglicose (FDG) lesions on Positron emission tomography–computed tomography (PET-CT), avoiding more invasive surgical procedures and greater morbidity, and also warning that suspicious lesions on PET-CT are not always they are in fact neoplasms.

Educational Goals / Teaching Points
Demonstrate that tomography-guided percutaneous lung biopsy is a safe and efficient method. To report a case of a patient with a primary history of colon and lung cancer, who in the follow-up exams with PET-CT, showed hypercaptant nodular lung lesions, suspected of having neoplastic involvement. After biopsy, the result suggested that it was material related to previous pulmonary surgical manipulation. Show that not all findings that uptake the FDG are in fact neoplastic.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
Patient with primary history of colon and lung cancer, who on follow-up exams with PET-CT, showed uptake nodular lung lesions, suspected for neoplastic involvement. We show Axial CT in the mediastinal window in the prone position and sagittal reconstruction showing a 17/18G semi-automatic Tru-cut needle in the pulmonary nodule in the apicoposterior segment of the left upper lobe. Shows the extracted, filiform, whitish fragments, with the appearance of intertwined threads, in the formaldehyde flask.

Conclusion
Percutaneous lung biopsy - guided by CT is a safe and efficient method for the diagnosis of uptake lesions on PET-CT.