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Incidental Muscle Uptake of 177 Lu-DOTATATE in Peripheral Vascular Disease
Piyush Aggarwal,Kunal Ramesh Chandekar,Ashwani Sood,Shakti Zerial,Rajender Kumar,Anindita Sinha 대한핵의학회 2021 핵의학 분자영상 Vol.55 No.6
Somatostatin receptor (SSTR)-based imaging and therapy has emerged as well-established modality in neuroendocrinetumors. However, its role in inflammation imaging is still evolving. We present a 48-year-old male with metastatic neuroendocrinetumor who underwent lutetium-177-based somatostatin receptor-based therapy. The post-therapy scan showed afocal tracer uptake in the left calf muscle in addition to the expected tracer uptake at the primary and metastatic sites. Further,cross-sectional imaging and biochemical investigations revealed peripheral vascular disease (PVD). The incidental traceruptake in the calf on post-therapy scan potentiates the role of somatostatin receptor scintigraphy in identifying macrophagespecificinflammatory reactions.
Piyush Aggarwal,Anwin Joseph Kavanal,Harmandeep Singh,Rajender Kumar,Rajeev Ranjan,Jitupam Baishya,Anish Bhattacharya 대한핵의학회 2021 핵의학 분자영상 Vol.55 No.6
Hodgkin’s lymphoma most commonly presents as painless lymphadenopathy and systemic B symptoms like fever, nightsweats, and weight loss. But rarely, it can present with unusual paraneoplastic manifestations. In the present case, we reporta 30-year-old woman who presented with sub-acute onset pan-cerebellar symptoms. The serum neuronal antibody panel wasnegative. She underwent F-18 FDG PET/CT to evaluate the neoplastic etiology as the underlying cause, which demonstratedboth the primary etiology and the paraneoplastic changes in the brain.
68Ga-DOTA-RGD2 Uptake in Plantar Fasciitis: New Insights into its Pathogenesis
Piyush Aggarwal,Singh Harmandeep,Kumar Rajender,Aman Sharma 대한핵의학회 2022 핵의학 분자영상 Vol.56 No.3
Plantar fasciitis is chronic degenerative tendinopathy of the plantar fascia. Although it has many treatment modalities, none has been very effective due to the largely unknown pathogenesis of this condition. 68Ga-DOTA-RGD2 has an upcoming role in assessing disease activity and treatment response in rheumatoid arthritis. In the present case, we demonstrate the potential role of angiogenesis imaging in understanding the pathogenesis of plantar fasciitis and provide new opportunities for novel imaging options.
Piyush Aggarwal,Anupriya Anwariya,Anwin Joseph Kavanal,Ashwani Sood,Santosh Ranjan Jena,Bhagwant Rai Mittal 대한핵의학회 2023 핵의학 분자영상 Vol.57 No.3
Peptide receptor radionuclide therapy (PRRT) has become an established treatment for patients with inoperable and/ormetastatic, well-differentiated neuroendocrine tumors with overexpression of somatostatin receptor type 2 (SSTR-2). Thepost-therapy 177Lu-DOTATATE whole-body scan not only assesses the biodistribution of the lesions seen on pre-therapy68 Ga-SSTR PET/CT scan but also provides a quick assessment of disease status and dosimetry during treatment. Like anyother radionuclide scan, the whole-body 177Lu-DOTATATE scan may also show abnormal radiotracer uptake, which mayrequire further imaging to establish its exact etiology. Though radiotracer emboli mimicking focal pulmonary lesions havebeen described with 18F-FDG and 68 Ga-DOTANOC PET/CT scans, similar artifacts with post-therapy 177Lu-DOTATATEscans have not been described. Herein, we report two cases of hot emboli in the post-therapy 177Lu-DOTATATE scans.