Unusual photopenic area in the abdomen on myocardial perfusion imaging.
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Abdominal Neoplasms↗
Biomedical subjects
Avneesh Chhabra
Publications and source records attributed to Avneesh Chhabra.
Abnormal focal pulmonary tracer uptake on myocardial perfusion imaging studies.
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Aged↗
Obscured bone metastases after administration of hematopoietic factor on FDG-PET.
We describe interesting imaging features on a FDG-PET scan in a patient with bony metastases from a rare tumor. The lesions were obscured by intense bone marrow activity after the administration of hematopoietic factor at the time of diagnosis. Correlative MRI, CT scan, and pathology findings have also been illustrated. Follow-up FDG-PET scan demonstrated the hypermetabolic lesions.
Artifacts↗
Hepatobiliary abnormalities on nuclear perfusion imaging.
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Choledocholithiasis↗
CT and MRI appearances of primary sphenoid melanoma: a rare case.
Primary sphenoid melanoma is a rare tumor. A 75-year-old man presented with complaints of headache and visual complaints for a few days. CT and MRI of the brain demonstrated a sphenoid sinus mass with appearances suggesting a diagnosis of melanoma. Fine-needle aspiration biopsy confirmed the diagnosis. Other differential diagnostic considerations on CT and MRI are discussed. We also discuss the further role of contrast MRI in determining the actual extent of the tumor in the critical skull base area.
Aged↗