Sakthivel Pirabu, Thakar Alok, Prashanth Arun, Kumar Rakesh, Sharma Suresh Chandra, Kumar Rakesh
Department of Otorhinolaryngology and Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India.
Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
Indian J Nucl Med. 2020 Apr-Jun;35(2):176-177. doi: 10.4103/ijnm.IJNM_207_19. Epub 2020 Mar 12.
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 Ga-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.
生长抑素(SST)细胞表面受体(SSTRs)在许多不同的恶性、良性和神经内分泌肿瘤中均有表达。在血管生成过程中,SSTRs也表达于人体血管的内皮细胞,而在非增殖血管中则不表达。我们报告了一例19岁患有青少年鼻血管纤维瘤(JNA)的男孩,他接受了镓标记的奥曲肽(Ga-DOTANOC)PET/CT检查,以探究SSTRs的表达及诊疗潜力。扫描显示肿瘤摄取较高,在某些区域,摄取情况与垂体相似。Ga-DOTANOC PET/CT在JNA中的应用在放射学分期、早期复发识别、与术后瘢痕组织的更好区分、SST类似物的可能术前治疗以及未来甚至可能对无法手术切除/残留/复发JNA进行基于放射性药物的配体治疗等方面开辟了新的领域。