Disseminated Multiple Organ Lymphoma Presented as Vulvar Lesion Diagnosed by [18F]FDG PET/CT.

We would like to present a 49-year-old female patient who was presented with a vulva lesion and palpable inguinal lymph nodes who were diagnosed with disseminated multiorgan involvement of high grade diffuse large B-cell lymphoma. The F-fluorodeoxyglucose positron emission tomography computerized tomography imaging showed multiple cervical, axillary, and abdominal lymph nodes, pulmonary nodules as well as gross hypermetabolic vulvar lesion.

Retrospective analysis of thyroid incidentalomas detected by [Ga]Ga-PSMA-11 PET/CT.

Background: Prostate cancer patients, undergo imaging procedures, with [Ga]Ga-PSMA-11 PET/CT (prostate-specific membrane antigen based positron emission tomography/computed tomography) utilized for primary and secondary staging. PSMA thyroid incidentalomas (PTI) are discovered in the thyroid gland while imaging prostate cancer patients with [Ga]Ga-PSMA-11 PET/CT.

Aims: The aim of the study was to determine the clinical significance of PTIs detected on [Ga]Ga-PSMA-11 PET/CT.

Multiple Nervous System Involvement of Erdheim-Chester Disease With Responsive Perinephritic Hypermetabolism.

A 36-year-old man who was at follow-up for histiocytosis had sudden-onset symptoms of unilateral ophthalmic increased pressure. The patient was referred to the FDG PET/CT for determination of involvement with suspicion of Erdheim-Chester disease. The reduction of the FDG uptake in all of the lesions (medial temporal lobes, nasal septum, medulla spinalis in sacral region, as well as perinephritic infiltrations), which were determined by the first PET/CT, was achieved at second imaging.

Axillary Lymph Nodes in Breast Cancer Patients After COVID-19 Vaccine.

One of the side effects of vaccines used to end the COVID-19 epidemic is non-specifically enlarged axillary lymph nodes. Such lymphadenopathy detected during clinical examination of breast cancer patients may require additional imaging or interventional procedures that should not normally be performed. This study has been designed to estimate the incidence of palpable enlarged axillary lymph node in breast cancer patients who had received COVID-19 vaccination in the past 3 months in the same arm as compared to those without vaccination.

Cancers and Benign Processes on Ga PSMA PET-CT Imaging Other than Prostate Cancer.

 Imaging plays an important role in the evaluation of prostate cancer patients. In recent years, much attention has been focused on gallium 68 prostate-specific membrane antigen positron emission tomography-computed tomography ( Ga PSMA PET-CT) in prostate cancer patients and has been widely used for staging, restaging, and therapy response for these patients. The aim of this study was to report Ga PSMA PET-CT in other cancers and benign processes incidentally detected on Ga PSMA PET-CT in patients with prostate cancer.

The Relationship between Pathological Features and F-FDG PET/CT that Changed the Surgeon's Decision as Neoadjuvant Therapy in Breast Cancer.

 Patients diagnosed with breast cancer and decided to undergo surgical treatment can undergo neoadjuvant therapy following their 2-deoxy-2-[fluorine-18]fluoro-D-glucose positron emission tomography/computed tomography ( F-FDG PET/CT) findings. The present study aims to determine the statistical significance of these patients whose treatment plan was changed and the reasons for the change in the plan.  The demographic features and treatment plans of 151 cases who were diagnosed with any stage of breast cancer were evaluated.

Diagnostic Performance of Tc-Methoxy-Isobuty-Isonitrile (MIBI) for Risk Stratification of Hypofunctioning Thyroid Nodules: A European Multicenter Study.

Tc-MIBI (MIBI) imaging is able to exclude malignancy of hypofunctioning thyroid nodules (TNs) with high probability but false positive results are frequent due to low specificity. Therefore, pre-test selection of appropriate TNs is crucial. For image evaluation visual and semiquantitative methods (Washout index, WOInd) are used.

Superscan Appearance of Ga PSMA PET/CT in a Patient with Refractory Prostate Cancer.

A 64-year-old male patient with metastatic prostate carcinoma diagnosis received lutetium-177 prostate-specific membrane antigen (PSMA) treatment; however, his disease progressed. Herein, presented the final images of the patient that demonstrated a superscan appearance in the Gallium-68 PSMA positron emission tomography/computed tomography, which is a rare phenomenon.

Perineum and penile invasion of recurrent prostate carcinoma shown by Ga-68 PSMA PET/CT.

Imaging of prostate cancer has recently had new modalities. Ga-68 Prostate Specific Membrane Antigen (PSMA) Positron Emission Tomography/Computed Tomography (PET/CT) has gained important diagnostic role in the management of the patients with prostate cancer. Patients with progressively elevated serum prostate specific antigen (PSA) level may be evaluated by Ga-68 PSMA PET/CT imaging.

Metabolic Characterization of Anterior Mediastinal Masses by F-FDG PET/CT.

Objectives: To evaluate the role of F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) for the diagnosis of anterior mediastinal masses.

Methods: The oncological F-FDG PET/CT images of 41 patients (17 women, 24 men; age: 16-83 years, mean age: 50.5±19.

Bone marrow involvement in pediatric malignancies: a comparison study of Positron emission tomographycomputed tomography and bone marrow biopsy.

Background And Objectives: The comparison of Positron emission tomography- computed tomography (PETCT) and bone marrow biopsy (BMB) modalities in detecting bone marrow disease is an up to date research topic. In this study, we aimed to compare the results of PET-CT and BMB procedures in detecting bone marrow involvement in pediatric malignancies.

Method: At the time of diagnosis, PET-CT imaging and BMB performed patients` data were evaluated, retrospectively.

Amyloidosis Associated Kidney Failure with Gross Hypermetabolic Intra-abdominal Mass.

A 23-year-old male patient who presented with impaired kidney function tests attended to hospital for hemodialysis and underwent F-FDG positron emission tomography/computed tomography (PET/CT) examination for the metabolic characterization of the intra-abdominal mass which was found in the ultrasonography. F-FDG PET/CT revealed a mass lesion adjacent to the liver which was hypermetabolic and the pathology of the lesion was determined as amyloidosis. To the best of our knowledge, the case with F-FDG PET/CT images of a huge amyloid mass is the first in the literature.