Radiology Key

Benign Causes of FDG Activity Todd M. Blodgett, MD Alex Ryan, MD Key Facts Terminology Nonmalignant areas of increased metabolism Benign nonphysiologic uptake of FDG may be encountered in as…

Colorectal Cancer Todd M. Blodgett, MD Alex Ryan, MD Omar Almusa, MD Key Facts Imaging Findings PET poorly sensitive for small (< 1 cm) lesions; high positive predictive value PET…

Normal Physiologic FDG Uptake Patterns Todd M. Blodgett, MD Alex Ryan, MD Barry McCook, MD Key Facts Terminology FDG activity associated with normal anatomical structures or benign processes Imaging Findings…

Non-Hodgkin Lymphoma Todd M. Blodgett, MD Alex Ryan, MD Omar Almusa, MD Key Facts Terminology Non-Hodgkin lymphoma (NHL) NHL: Malignancy of B or T lymphocytes Imaging Findings Spleen involved in…

Ovarian Carcinoma Todd M. Blodgett, MD Alex Ryan, MD Hesham Amr, MD Key Facts Terminology Ovarian cancer, carcinoma of the ovary Imaging Findings Solid or complex cystic mass arising from…

Cervical Carcinoma Todd M. Blodgett, MD Alex Ryan, MD Omar Almusa, MD Key Facts Imaging Findings PET/CT: Intense FDG activity in primary cervical mass, vagina, uterus, parametria; ± lymphadenopathy, visceral…

Lung Cancer Todd M. Blodgett, MD Carl Fuhrman, MD Sanjay Paidisetty, BS Key Facts Terminology Non-small cell lung cancer (NSCLC), bronchogenic carcinoma (CA), adenocarcinoma (adenocarcinoma), squamous cell carcinoma (SCCA), large…

Renal Cell Carcinoma Todd M. Blodgett, MD Alex Ryan, MD Hesham Amr, MD Key Facts Terminology Renal cell carcinoma (RCC), clear cell carcinoma, hypernephroma, renal cancer Imaging Findings Iso- or…

Carcinoma of Unknown Primary Todd M. Blodgett, MD Alex Ryan, MD Hesham Amr, MD Key Facts Terminology Metastatic cancer without known site of origin; histology inconsistent with known tumors from…

Bladder Carcinoma Todd M. Blodgett, MD Alex Ryan, MD Omar Almusa, MD Key Facts Imaging Findings CT: Enhancing focal/asymmetrical mass in the urinary bladder Can be multifocal Lymphatic spread (30%…