SYMPATHETIC PARAGANGLIOMA: A SINGLE-CENTER EXPERIENCE FROM WESTERN INDIA
2019
ABSTRACT Objective: Most of the Indian studies on pheochromocytoma/paraganglioma (PCC/PGL) have focused on PCC, and there is a paucity of information regarding sympathetic paraganglioma (sPGL). Here, we describe the clinical, biochemical, and imaging features of sPGL compared with PCC. Methods: This retrospective study included 75 patients with sPGL and 150 patients with PCC. Diagnosis of PCC/PGL was based on surgical histopathology, and if histopathology was not available, on biochemistry and/or radiology. Results: sPGL was more frequently detected incidentally (P = .03), normetanephrine-secreting (P<.01), and metastatic compared with PCC (P≤.01). sPGL was most commonly located in the organ of Zuckerkandl (OOZ) (49%) and infradiaphragmatic area above the OOZ (27%). Patients with mediastinal sPGL were significantly older than those with sPGL in the OOZ (P = .03). Primary tumors of metastatic sPGL were significantly larger than those without metastasis (7.8 ± 4 cm vs. 5.6 ± 3.2 cm; P = .004). Percentage ar...
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