Ovarian thecoma is a benign and rare neoplasm that accounts for 0.5% to 1% of all ovarian tumors. A 55-year-old woman with known breast cancer underwent a metastatic workup before surgery. The 99mTc-MDP whole-body bone scan revealed intense uptake in the left pelvic region. Hybrid SPECT/CT imaging showed that the elevated 99mTc-MDP activity was in a tumor with calcification in the left adnexa. Dynamic enhanced MRI revealed marked enhancement of the tumor. Resection of the tumor was subsequently performed,...
Fri Jun 21, 2019 03:00
68Ga-labeled prostate-specific membrane antigen inhibitors and 68Ga-labeled gastrin-releasing peptide receptor antagonists showed interesting results for staging biochemically recurrent prostate cancer. In this case, 68Ga–prostate-specific membrane antigen-617 PET/CT, 68Ga-RM2 PET/CT, and 18F-choline PET/CT were performed in a patient (66-year-old man, prostate-specific antigen = 6.7 ng/mL) with biopsy-proven Gleason 9 (5 + 4) prostate cancer, candidate for radical prostatectomy and lymph node dissection. ...
Fri Jun 21, 2019 03:00
Nodular fasciitis is an uncommon benign mass-forming myofibroblastic proliferation, most frequently found in the upper limbs, with only rare intramuscular cases. We describe herein a case of chronic nodular fasciitis of the left triceps muscle with a low 68Ga-labeled prostate-specific membrane antigen (PSMA) ligand uptake on PET/CT. 68Ga-PSMA ligands bind to PSMA-expressing prostate cancer cells, but uptake has also been demonstrated in other solid neoplasms and various benign lesions. Nodular fasciitis...
Fri Jun 21, 2019 03:00
Lymphomatoid papulosis is a benign self-healing condition, presenting as papulonodular skin eruptions and mimicking malignant cutaneous lymphomas histopathologically. 18F-FDG PET/CT findings in this benign condition have not been described in detail in the literature. We present a case of lymphomatoid papulosis mimicking primary cutaneous anaplastic large cell lymphoma histopathologically and demonstrating intensely FDG-avid cutaneous lesions on 18F-FDG PET/CT, which disappear spontaneously in the...
Fri Jun 21, 2019 03:00
A 63-year-old man with elevated prostate-specific antigen serum levels and enlarged prostate gland underwent ultrasound-guided transrectal biopsy, which did not reveal any evidence of malignancy. In order to help guidance of repeat biopsy, 68Ga–prostate-specific membrane antigen–targeted ligand PET (PSMA PET/CT) was ordered. PET/CT scan showed no abnormal PSMA expression within the prostate gland. There were, however, multiple PSMA-expressing osteolytic lesions throughout the axial skeleton. Bone...
Fri Jun 21, 2019 03:00
Idiopathic scrotal calcinosis, also called dystrophic scrotal calcinosis, is a rare benign condition that causes superficial intradermal scrotal calcifications. We present one such case of a 40-year-old married man who underwent PET/CT scan for staging workup of lymphoma and revealed this rare entity incidentally without any other testicular pathology. Received for publication February 9, 2019; revision accepted May 11, 2019. Conflicts of interest and sources of funding: none declared. Correspondence...
Fri Jun 21, 2019 03:00
A 59-year-old man with a pacemaker who was admitted for evaluation of fever was found to have a redundant loop of the ventricular lead and a vegetation attached to it. An FDG PET/CT revealed a focus of FDG uptake at the ventricular lead loop. Surgical extraction of the pacemaker device confirmed a Propionibacterium acnes pacemaker endocarditis. We hypothesize that the redundant loop of the ventricular lead induced a chronic mechanical stress both to the tricuspid valve and to the lead itself, facilitating...
Fri Jun 21, 2019 03:00
A 69-year-old woman was referred for initial staging of an oral cavity mass. 18F-FDG PET/CT displayed a homogeneous intense uptake of the 50-mm left hemipalatal mass with local extension to the dental arcade and maxillary sinus. Infracentimetric bilateral cervical nodes with faint uptake were also detected, contrasting with the usual presentation of other head and neck squamous cell carcinoma. Biopsy concluded to a rare head and neck squamous cell carcinoma subtype: oral cuniculatum carcinoma (OCC)....
Fri Jun 21, 2019 03:00
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