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LETTER TO THE EDITOR
Year : 2018  |  Volume : 33  |  Issue : 2  |  Page : 182  

Incidental Meningioma on 68Ga-DOTANOC Positron-Emission Tomography


Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India

Date of Web Publication15-Mar-2018

Correspondence Address:
Dr. Bhagwant Rai Mittal
Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh - 160 012
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijnm.IJNM_162_17

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How to cite this article:
Parihar AS, Basher RK, Rana N, Mittal BR. Incidental Meningioma on 68Ga-DOTANOC Positron-Emission Tomography. Indian J Nucl Med 2018;33:182

How to cite this URL:
Parihar AS, Basher RK, Rana N, Mittal BR. Incidental Meningioma on 68Ga-DOTANOC Positron-Emission Tomography. Indian J Nucl Med [serial online] 2018 [cited 2019 Dec 8];33:182. Available from: http://www.ijnm.in/text.asp?2018/33/2/182/227509



Sir,

A 45-year-old woman was being evaluated for suspected recurrence of right adrenocortical carcinoma. She had undergone right mastectomy with adjuvant chemoradiation, 2 years earlier for carcinoma breast. On follow-up, computed tomography (CT) of the abdomen showed an enhancing right suprarenal mass which was revealed as adrenocortical carcinoma after excision. Six-month postsurgery,68 Ga-DOTANOC positron-emission tomography/computed tomography (PET/CT) for suspected disease recurrence showed [Figure 1] a focus of tracer activity in the head (arrow), superior to the physiologic tracer uptake in the pituitary (A, maximum intensity projection image). Corresponding transaxial CT (B) and fused PET/CT (C) images showed a tracer avid (standardized uptake value-max 12.1), dural-based enhancing lesion in the left frontal cortex, diagnosed as meningioma. The patient was asymptomatic and is on follow-up. Meningiomas are slow-growing tumors and express somatostatin receptors. Although the CT characteristics are consistent, the additional avidity on 68 Ga-DOTANOC PET imaging adds on to the diagnostic confidence.
Figure 1: 68Ga-DOTANOC positron-emission tomography/computed tomography; (a) maximum intensity projection image showing focus of tracer uptake in the head, slightly to the left of midline (arrow); (b) transaxial computed tomography image showing dural-based enhancing lesion in the left frontal cortex (arrow); (c) transaxial fused positron-emission tomography/computed tomography image showing tracer uptake in the dural-based lesion (arrow)

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Financial support and sponsorship

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Conflicts of interest

There are no conflicts of interest.




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