Publications by authors named "Arun Visakh Ramachandran Nair"

Hepatocellular carcinoma (HCC) usually metastasizes to the regional abdominal lymph node, lungs, and bones. Nonregional lymph node involvement by HCC in the absence of regional lymph nodes is rare. We describe the F-fluorodeoxyglucose positron-emission tomography-computed tomography findings of an HCC patient with histopathologically proven inguinal lymph nodal metastasis in the absence of regional lymph nodal metastases.

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Malignant transformation Paget's disease of bone to sarcoma is relatively rare, occurring in approximately 1% of these patients. Although few clinical and imaging findings may help in prediction of malignant transformation, most of them are nonspecific. We describe a case of carcinoma vocal cord and Paget's disease of bone with sarcomatous transformation, where F-fluorodeoxyglucose (FDG) positron emission tomography-computed tomography was helpful in accurate diagnosis by demonstrating differential intense FDG uptake in transformed areas of pagetic bone and also FDG-avid osteoblastic pulmonary metastasis.

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We present a case with space-occupying lesion in cirrhotic liver, diagnosed as hepatocellular carcinoma on immunohistochemistry, who underwent F-18 fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) and showed FDG-avid lesions in liver as well as in the prostate. These findings guided in establishing the diagnosis of prostate cancer, metastasizing to liver by performing additional immunohistochemical markers. PET/CT was also useful in identifying coexisting non-Hodgkin's lymphoma.

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Majority of ovarian cancer (OC) patients are usually diagnosed at advanced stage and present with peritoneal spread/ascites. Some patients develop pleural deposits/effusion secondary to transdiaphragmatic spread of peritoneal disease/ascites. However, pleural deposits/effusion from OC in the absence of peritoneal disease/ascites are very rare.

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