A Rare Case of Primary Cardiac Diffuse Large B-cell Lymphoma Imaged with F-FDG PET/CT.

Primary cardiac lymphoma is an extremely rare malignancy. A few reports about the findings of fluorine-fluorodeoxyglucose (F-FDG) positron emission tomography/computed tomography (PET/CT) imaging has been presented. We report a rare case of a 70-year-old male with diagnosed primary intracardiac diffuse large B-cell lymphoma referred for F-FDG PET/CT imaging for initial staging.

F-FDG PET/CT Imaging in an Unusual Case of Cutaneous Melanoma Arising From Congenital Melanocytic Nevus in a Two-year-old Girl.

Childhood malignant melanoma (MM) is extremely uncommon. We report an unusual case of cutaneous melanoma that developed from a medium-sized congenital melanocytic nevus (CMN) in a two-year-old girl. The patient had a history of CMN on the right hip, and she presented with a new ulcerative area with irregular borders and bleeding on CMN.

Comparative Findings Between Ga-PSMA and F-FDG PET/CT for Hepatocellular Carcinoma.

We have reported here the case of a 69-year-old man who presented with spinal cord compression due to bone metastases as the first manifestation of hepatocellular carcinoma (HCC). For the initial staging, the patient underwent F-fluorodeoxyglucose (FDG) positron emission tomography/computerized tomography (PET/CT) imaging, which demonstrated mild F-FDG uptake in the multiple expansile osteolytic bone lesions, but no remarkable atypical F-FDG uptake in the liver lesion on low-doses CT. An additional PET/CT scan was performed to evaluate the prostate-specific membrane antigen (PSMA) expression, which has recently been reported to be a potential biological marker in a variety of tumors including HCC.

Primary Hepatocellular Carcinoma With Intense 68Ga-PSMA Uptake But Slight 18F-FDG Uptake on PET/CT Imaging.

Ga-PSMA PET/CT imaging is an emerging imaging modality in prostate cancer. PSMA expression is also reported for nonprostate malignancies, including primary hepatocellular carcinoma. Herein, we present a case of a 74-year-ald man with recently diagnosed hepatocellular carcinoma who was referred for F-FDG PET/CT imaging for initial staging.

A Case of a Man With Isolated Breast Metastasis From Lung Adenocarcinoma Incidentally Detected by FDG PET/CT.

Breast metastases from an extramammary primary tumor are very rare, particularly in men. In this study, we present a case of a 74-year-old man with isolated breast metastasis from lung adenocarcinoma as an incidental finding on PET/CT and diagnosed concomitantly with the primary tumor. Detection of isolated incidental metastatic lesions in the breast on PET/CT imaging has a significant clinical impact on patients with known malignant disease due to change of disease stage, management, and also treatment method.

Venous thrombosis of sarcoidosis as an unusual incidental finding on 18F-fluorodeoxyglucose positron emission tomography/computed tomography.

Sarcoidosis is defined as a multisystem granulomatous disorder of unknown cause. Venous thrombosis (VT) in the sarcoidosis is rare. The routine use of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) has resulted in clinicians detecting many incidental findings, which have proven to be clinically significant such as thrombosis.

Elastofibroma dorsi incidentally detected by (18)F-FDG PET/CT imaging.

Objective: Elastofibroma dorsi (ED) is a rare pseudotumor of the soft tissues that can also show 18F-fluorodeoxyglucose ((18)F-FDG) uptake on positron emission tomography combined with computed tomography (PET/CT) imaging. The aim of this retrospectively study was to describe the metabolic characteristics of ED incidentally detected by (18)F-FDG PET/CT imaging.

Materials And Methods: Between November 2009 and August 2013 at our institution, 10,350 consecutive PET/CT examinations were retrospectively investigated.

Cardiac blood pool activity on postablation radioiodine imaging.

Objective: There are reports on physiologic and pathologic mediastinal uptake on radioiodine imaging in patients with thyroid carcinoma. The most commonly reported physiologic causes of mediastinal uptake are esophageal retention of salivary secretion and uptake by hyperplastic or normal thymus gland. In this study, we evaluated physiologic cardiac blood pool (CBP) activity and its associated findings on radioiodine imaging.

Simultaneous occurrence of medullary and differentiated thyroid carcinomas. Report of 4 cases and brief review of the literature.

Simultaneous occurrence of medullary thyroid carcinoma (MTC) and papillary thyroid carcinoma (PTC) in a single patient is an unusual event. The incidence, cell origin, histopathology features and prognosis of these two carcinomas are considered completely different. The aim of this retrospective study was to describe clinical, pathologic characteristics and the prevalence of diagnosing such patients in our clinic.

Kikuchi-Fujimoto disease as a rare cause of benign lymphadenopathy and (18)F-FDG PET/CT findings.

Kikuchi-Fujimoto disease (KFD) is an uncommon benign and self-limited disease, characterized by cervical lymphadenopathy. This disease is generally diagnosed on the basis of an excisional biopsy of affected lymph nodes. However, clinical presentation and histopathological findings of KFD could lead to a wrong initial diagnosis, of tuberculosis, systemic lupus erythymatosus or malignant lymphoma.

Osseous and Nonosseous Bone Scan Findings in Liver Transplant Candidates with end-stage Chronic Liver Disease.

Objective: End-stage chronic liver disease (CLD) adversely affects the function of multiple organ systems including the skeletal system. The aim of this study was to assess osseous and nonosseous bone scintigraphy (BS) findings in liver transplant (LT) candidates with end-stage CLD.

Methods: We retrospectively evaluated BS findings in 50 consecutive patients with end-stage CLD who were undergoing preoperative assessment for LT from January 2006 to December 2011.

The clinical value and histopathological correlation of lacrimal scintigraphy in patients with primary Sjögren's syndrome.

Purpose: To evaluate the lacrimal gland function in patients with primary Sjögren's syndrome (SS) using lacrimal scintigraphy (LS) and to determine the relationship between clinicopathological stage of primary SS and LS findings.

Methods: Seventy eyes from 35 patients with primary SS and 20 eyes from 10 healthy age-matched and sex-matched individuals who served as the control group were included in this study. The patients with primary SS were divided into two groups - early stage and advanced stage - according to the labial biopsy scores (23 patients in early stage and 12 in advanced stage).