Juvenile Nasal Angiofibroma on 68Ga-DOTANOC PET/CT: Exploring Theranostic Avenues

Indian J Nucl Med. 2020 Apr-Jun;35(2):176-177. doi: 10.4103/ijnm.IJNM_207_19. Epub 2020 Mar 12.

Abstract

Somatostatin (SST) cell surface receptors (SSTRs) are expressed in many different malignant, benign, and neuroendocrine tumors. SSTRs are also expressed in the endothelium of human vessels during angiogenesis and not in the nonproliferating vessels. We present a case of 19-year-old boy with juvenile nasal angiofibroma (JNA), who underwent 68Ga-DOTANOC PET/CT to explore SSTRs expression and theranostic potential. The scan revealed high uptake in the tumor, and in certain areas, the uptake was similar to that of the pituitary gland. Performance of DOTANOC PET/CT in JNA opens up new frontiers with respect to radiological staging, early recurrence identification, better delineation from postoperative scar tissue, possible preoperative treatment with SST analogs, and perhaps even radiopharmaceutical based-ligand therapy of inoperable/residual/recurrent JNAs in the future.

Keywords: Angiofibroma; DOTANOC positron emission tomography computed tomography; juvenile nasopharyngeal angiofibroma.