Carcinoma of unknown primary of neuroendocrine origin: Accurate detection of primary with (68)Ga-labelled [1, 4, 7, 10-tetraazacyclododecane-1, 4, 7, 10-tetraacetic acid]-1-NaI3-Octreotide positron emission tomography/computed tomography enterography.
(68)Ga-labelled [1, 4, 7, 10-tetraazacyclododecane-1, 4, 7, 10-tetraacetic acid]-1-NaI3-Octreotide ((68)Ga-DOTANOC) positron emission tomography/computed tomography (PET/CT) is an excellent modality in patients with carcinoma of unknown primary of neuroendocrine origin. Most of the primary lesions are located in mid gut region where the lesions have poor resolution due to undistended and overlapping intestinal loops and motility-related artifacts. Although PET/CT enteroclysis, enterography and colonography have been described with (18)F-fluorodeoxyglucose, PET/CT enterography with(68)Ga-DOTANOC has not been described in the literature. Here, we present a case where(68)Ga-DOTANOC PET/CT enterography was useful in identifying the primary neuroendocrine tumor lesion in small intestine with accurate delineation.
Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
Tarun Kumar
TK
Jain
Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
Sellam
S
Karunanithi
Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
Varun Singh
VS
Dhull
Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
Shambo Guha
SG
Roy
Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
Rakesh
R
Kumar
68Ga-labelled (1, 4, 7, 10-tetraazacyclododecane-1, 4, 7, 10-tetraacetic acid)-1-NaI3-octreotide; enterography; neuroendocrine tumor; positron emission tomography/computed tomography