Prostate-specific membrane antigen (PSMA) is expressed in the tumor-associated endothelial neovasculature of various nonprostatic benign and malignant neoplasms. A 25-year-old man with recurrent sinonasal glomangiopericytoma underwent whole-body 68Ga PSMA PET/CT to explore its theranostic role. There was intense PSMA uptake (SUVmax = 23.9) noted in the tumor. The uptake was more than that of the salivary glands, lacrimal glands, aorta, spleen, and the liver. Performance of PSMA PET/CT in sinonasal glomangiopericytoma opens up new frontiers concerning radiological imaging, early recurrence identification, and perhaps even radioligand therapy of residual/recurrent tumors.
Objective: To elucidate the etiopathogenesis of facial neuritis in COVID-19-associated mucormycosis Methods: A retrospective review of cases of COVID-19-associated mucormycosis (CAM) was done from January 2021 to July 2021. Patients presenting with peripheral facial nerve palsy with CAM were included in the study. The clinico-radiological details of four patients were assessed to look for the potential mechanism of involvement of facial nerve in these patients.Results: On serial radiological evaluation with CECT and CEMRI, the infratemporal fossa was involved by the disease in all cases with the inflammation extending along fascial planes to reach the stylomastoid foramen. Ascending neuritis with an enhancement of the facial nerve was demonstrated in all cases.
Conclusion:In patients with CAM presenting with facial palsy, the likely explanation backed by radiology is the disease abutting the facial nerve at the stylomastoid foramen and causing ascending neuritis of the facial nerve.
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