Neuroendocrine neoplasms (NENs) predominantly arise within the intestinal tract, pancreas, and lung, but may develop in various organs commonly metastasize, especially to liver. Cross-sectional imaging (ultrasound, computed tomography, magnetic resonance imaging) play a central role detection, characterization, management, follow-up of NENs. Imaging features tumors significantly vary as per sit...

  Periarticular cyst and cystic soft tissue lesion around the knee are common. Synovial sarcoma is a rare and malignant soft tissue tumor accounting for approximately 5% of soft tissue sarcoma. A case is presented where a lesion adjacent to the joint line of the knee was diagnosed clinically and on imaging as a meniscal cyst. MRI signal was homogenous and no concomitant meniscal tears were seen...

abstract meningeal melanocytoma is a rare tumor of nervous system, which originates from leptomeningeal melanocytes. the locations of melanocytoma in the nervous system are most frequently in the posterior fossa or along the spinal cord, and usually appear as an extra-axial mass. the manifestations of tumor are most often due to its compressing effect on adjacent nervous structures that causes ...

testicular cancer typically spreads to the lymph nodes, but hematogenous dissemination to distant organs can also occur. bone metastasis is uncommon and is thought to be a poor prognostic indicator. jaw metastasis is exceedingly rare but is of great clinical significance, since it may be the first sign of an occult testicular cancer or the first evidence of relapse of a known tumor. herein, we ...

chondrosarcoma is the second most common primary mesenchymal malignant tumor of the bone. the most common form is central chondrosarcoma and the rarest is intracortical chondrosarcoma. here, we describe the clinical, pathological, and imaging features of a case of intracortical chondrosarcoma as well as the outcome of surgical treatment. this is the third case reported in the literature.

background: our study aims to determine the correlation between breast cancer tumor size according to imaging (ultrasonography and mammography) with final pathologic report as a gold standard. methods: we included 132 women with pathologically proven invasive breast cancer between april 2011 and december 2013. study variables included tumor size according to pathology (as a gold standard), ultr...

melanocortin-1 (mc1) receptor is an attractive melanoma-specific target for the development of α-msh peptide based imaging and therapeutic agents. in this work a new lactam bridge α-msh analogue was synthesized and radiolabeled with 99mtc via hynic chelator and tricine as co-ligand. also, stability in human serum, receptor bound internalization and tissue biodistribution in tumor bearing nude m...

Introduction: This study was aimed to investigate the beneficial effects of functional magnetic resonance imaging (fMRI) data in treatment planning for patients with CNS tumors in order to decrease the injury of functional regions of the brain followed by increase in life quality and survival of patients. This study pursues a novel approach in planning for the treatment of brai...

Tumor perfusion and oxygenation status have been suggested as factors which may influence treatment outcome in cancer patients. Nuclear medicine assays of tumor perfusion [99mTc-hexamethylpropylenamine oxime (HMPAO)] and tumor hypoxia [123I-iodoazomycin arabinoside (IAZA)] have recently been developed and described. We report on measurements of perfusion and oxygenation status of 27 tumors in 2...

mammography remians the procedure of choice in screening asymptomatic women for breast cancer. however, in patients with symptoms, other types of imaging play an important role in the detection of malignancies. the high cost and lack of availability of pet and mri largely precludes the use in this patient population. ti-201 is nbt the imaging agent of choice because of its wash-out and redistri...