introduction: chronic sclerosing sialadenitis is a relatively uncommon disorder of the salivary gland. because of its clinical similarity to a salivary gland neoplasm, this condition has been known as kuttner tumor and is classified as a tumorlike lesion. case report: this is the first reported case of bilateral kuttner tumor of the submandibular glands in iran. it was initially diagnosed as a ...

UNLABELLED The lesion detectability performance of 6 PET imaging platforms has been compared using a highly reproducible whole-body phantom and localization receiver operating characteristic (LROC) analysis. METHODS A realistic whole-body phantom consisting of brain, thorax with lungs and liver, and pelvis with bladder was assembled and outfitted with 27 semipermanent (22)Na lesions of variou...

We present the case of a 58-year-old Jehovah’s Witness admitted to our Institution with unstable angina for the previous two weeks. Past medical history included hypertension, hyperlipidemia and previous testicular cancer treated with resection and chemotherapy about 15 years earlier. At admission, a trans-esophageal echocardiogram (TEE) showed preserved ejection fraction (EF) with no regional ...

barrett's mucosa is one of the most important diseases in upper gastrointestinal system that caused by gastroesophagus reflux. if left untreated, the disease will cause distal esophagus and gastric cardiaadenocarcinoma. the malignancy risk is very high in short segment barrett’s mucosa. therefore,lesion area segmentation can improve specialist decision for treatment. in this paper, we proposeda...

Skeletal involvement is the second most common site of metastases after lymph nodal metastases in patients with prostate cancer. The skeletal metastases from prostate cancer are osteoblastic in nature and show increased tracer avidity on the bone scan. Focal tracer avid lesion in skeleton especially in skull requires the careful examination by further investigation. The patients with skull meta...

PET imagery is a valuable oncology tool for characterizing lesions and assessing lesion response to therapy. These assessments require accurate delineation of the lesion. This is a challenging task for clinicians due to small tumor sizes, blurred boundaries from the large point-spread-function and respiratory motion, inhomogeneous uptake, and nearby high uptake regions. These aspects have led t...

A 14-year-old child was diagnosed with primitive neuroectodermal tumor (PNET) of pelvis. Baseline 99mTc-methtylene diphosphonate (MDP) bone scintigraphy done to know the extent of the disease, although of suboptimal quality, revealed involvement of right hemipelvis (A, arrowhead) (Fig. 1). Also, there was a focus of increased radiotracer uptake in the occipital bone (B, arrow). Since the patien...

Accurate detection of the borders of skin lesions is a vital first step for computer aided diagnostic systems. This paper presents a novel automatic approach to segmentation of skin lesions that is particularly suitable for analysis of dermoscopic images. Assumptions about the image acquisition, in particular, the approximate location and color, are used to derive an automatic rule to select sm...