Incidental Detection of Radiotracer Uptake in Intracranial Dermoid Cyst on 18F-Prostate-Specific Membrane Antigen PET/CT During Staging for Prostate Carcinoma.
Clin Nucl Med
; 46(5): e273-e275, 2021 May 01.
Article
in En
| MEDLINE
| ID: mdl-33323739
ABSTRACT
ABSTRACT A 68-year-old man underwent 18F-prostate-specific membrane antigen (PSMA) PET/CT for staging of a newly diagnosed prostate adenocarcinoma. Unexpectedly, PET/CT revealed high focal 18F-PSMA brain uptake, which initially was suspected for a brain metastasis. Corresponding CT and MRI scans revealed characteristic imaging features of an intracranial dermoid cyst at this site. This is an exceptional location for a dermoid cyst, which had been followed up conservatively with no substantial changes. This case shows that dermoid cyst should be added to the reported list of benign neoplasms that shows "false-positive" PSMA uptake during evaluation of patients with prostate carcinoma, representing a potential interpretative pitfall.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Prostatic Neoplasms
/
Fluorine Radioisotopes
/
Incidental Findings
/
Glutamate Carboxypeptidase II
/
Dermoid Cyst
/
Positron Emission Tomography Computed Tomography
/
Antigens, Surface
Type of study:
Diagnostic_studies
Limits:
Aged
/
Humans
/
Male
Language:
En
Journal:
Clin Nucl Med
Year:
2021
Document type:
Article