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An 82-year-old man underwent outpatient nuclear medicine gastric-emptying scintigraphy (GES) for dysphagia and regurgitation. Standard solid-meal GES showed significant elongated tracer retention with calculated 96% retention rate at 3 hours, with a presumed diagnosis of delayed gastric emptying. Subsequent CT of the chest and abdomen and upper gastrointestinal fluoroscopy instead showed normal size and function of the stomach but an enormously dilated esophagus with food debris, compatible with achalasia. Attention should be made on the location and shape of the visualized “stomach” and recognize that significantly dilated esophagus can mimic an elongated stomach during GES.

The following is a special report on alkylphosphocholine analogs as targeted imaging and therapy agents for cancer, and their potential role in diagnosis and treatment in glioblastoma and brain metastases. These novel cancer-targeting agents display impressive tumor avidity with low background in the normal brain, and multimodal diagnostic imaging and therapy capabilities. The use of these agents may significantly improve diagnosis, treatment and post-treatment follow-up in patients with brain malignancies

The following is a special report on alkylphosphocholine analogs as targeted imaging and therapy agents for cancer, and their potential role in diagnosis and treatment in glioblastoma and brain metastases. These novel cancer-targeting agents display impressive tumor avidity with low background in the normal brain, and multimodal diagnostic imaging and therapy capabilities. The use of these agents may significantly improve diagnosis, treatment and post-treatment follow-up in patients with brain malignancies

The dimensions and shapes of vertebral body endplates of inferior L4, inferior and superior L5, and superior S1 were analyzed. Computed tomographic scans parallel to each endplate were used to develop a standardized geometric model of the boundaries of each vertebral body.

Tumor-specific alkylphosphocholine analogs were evaluated as imaging and therapy agents in patients and in animal models of human cancer.