Neuroendocrine tumors (NET) are rare neoplasms and commonly metastasize to liver, lymph nodes and less frequently to bones and lungs. Metastases to other organs are extremely rare and we report a case of NET clinically presenting with bilateral proptosis secondary to metastases in orbits. 68Ga-DOTANOC PET/CT demonstrated somatostatin receptor overexpressing lesions in bilateral orbits, small intestine, lymph nodes, lungs, heart and testes in the absence of liver metastases.
Parasellar extra-axial cavernomas are rare lesions. The authors report a case of extra-axial cavernoma in a 50-year-old male patient, who presented with occipital headache and double vision. The magnetic resonance imaging showed an enhancing extra-axial dural-based mass in the left parasellar region invading cavernous sinus, hyper-intense on T2-weighted images, iso-intense on T1-weighted images and high relative cerebral blood velocity on magnetic resonance perfusion. The patient underwent a left pterional craniotomy and parasellar space occupying lesion was excised. Histopathology was suggestive of cavernous hemangioma. Key words: Extra-axial cavernoma, parasellar cavernoma, meningioma
ABSTRACTArticle history:
Peritoneal lymphomatosis is relatively uncommon cause of diffuse malignant peritoneal disease, and differentiating it from other causes of diffuse peritoneal disease such as peritoneal carcinomatosis is often difficult on imaging. Common findings observed in peritoneal lymphomatosis in contrast to other etiologies include frequent nodal involvement and splenomegaly. We present a case of diffuse peritoneal disease along with ovarian lesions in the absence of abdominal lymphadenopathy or splenomegaly on fluorodeoxyglucose positron emission tomography–computed tomography in the setting of elevated cancer antigen-125 levels, mimicking primary ovarian malignancy causing peritoneal carcinomatosis, which was finally proven to be lymphoma.
T-cell large granular lymphocytic leukemia is a rare form of leukemia, caused by clonal proliferation of cytotoxic T-cells, characterized by modest lymphocytosis and cytopenias of other lineage with hepatosplenomegaly and relatively rare lymph nodal involvement. Involvement of other organs is extremely rare. It is predominantly an indolent disease and most of patients remain asymptomatic for a long period. We present a rare case of aggressive form (CD56 positive) of large granular lymphocytic leukemia with atypical presentations mimicking pleural malignancy on 18F-FDG PET/CT.
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