title: Splenunculus Masquerading as Prostate-specific Membrane Antigen-positive Lymph Node Metastasis in a Patient With Prostate-specific Antigen Relapse After Radical Prostatectomy.
abstract: A 45-year-old patient presented with prostate-specific antigen relapse after radical prostatectomy. Diagnostic workup revealed a (68)Ga-labeled prostate-specific membrane antigen-targeted ligand tracer uptaking nodule that was initially interpreted as lymph node metastasis but eventually identified as a splenunculus by scintigraphy with (99m)Tc pertechnetate-labeled heat-altered erythrocytes. Awareness of this constellation may spare unnecessary diagnostic procedures and inappropriate treatment.
authors.affiliation: Department of Urology, Technische Universität Dresden, Dresden, Germany. Electronic address: Michael.Froehner@uniklinikum-dresden.de.
authors.forename: Michael
authors.initials: M
authors.lastname: Froehner
authors.affiliation: Department of Nuclear Medicine, Technische Universität Dresden, Dresden, Germany.
authors.forename: Klaus
authors.initials: K
authors.lastname: Zöphel
authors.affiliation: Department of Radiation Oncology und Oncoray, Technische Universität Dresden, Dresden, Germany.
authors.forename: Tobias
authors.initials: T
authors.lastname: Hölscher
authors.affiliation: Department of Radiologic Diagnostics, University Hospital "Carl Gustav Carus", Technische Universität Dresden, Dresden, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Laniado
authors.affiliation: Department of Urology, Technische Universität Dresden, Dresden, Germany.
authors.forename: Manfred P
authors.initials: MP
authors.lastname: Wirth
mesh_terms: D000954:Antigens, Surface / Q000097:blood*; D003937:Diagnosis, Differential; D043425:Glutamate Carboxypeptidase II / Q000097:blood*; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000097:blood* / Q000175:diagnosis* / Q000473:pathology; D017430:Prostate-Specific Antigen / Q000097:blood*; D011468:Prostatectomy / Q000379:methods; D011471:Prostatic Neoplasms / Q000097:blood* / Q000473:pathology / Q000601:surgery*; D013154:Spleen / Q000002:abnormalities*
chemical_list: D000954:Antigens, Surface; C473848:FOLH1 protein, human; D043425:Glutamate Carboxypeptidase II; D017430:Prostate-Specific Antigen