title: Giant cystic pheochromocytoma: A silent entity.
abstract: Pheochromocytoma is a catecholamine secreting tumor that originate from chromaffin cells. Usually, it is solid neoplasm of the adrenal medulla, however cystic pheochromocytoma is a rare neuro-endocrine tumour that is frequently asymptomatic and often diagnosed incidentally on imaging or intra-operatively. Only a few cases of cystic pheochromocytomas have been reported in the world literature. We present a case of giant cystic pheochromocytoma in a 65 years old lady who presented with a large retroperitoneal lump, which is probably the world's third largest pheochromocytoma as per the available indexed literature.
authors.affiliation: Department of Surgery, Dr. Baba Saheb Ambedkar Medical College and Hospital, Rohini, New Delhi, India.
authors.forename: Amit
authors.initials: A
authors.lastname: Gupta
authors.affiliation: Department of Surgery, Dr. Baba Saheb Ambedkar Medical College and Hospital, Rohini, New Delhi, India.
authors.forename: Lovenish
authors.initials: L
authors.lastname: Bains
authors.affiliation: Department of Surgery, Dr. Baba Saheb Ambedkar Medical College and Hospital, Rohini, New Delhi, India.
authors.forename: Manish Kumar
authors.initials: MK
authors.lastname: Agarwal
authors.affiliation: Department of Pathology, Dr. Baba Saheb Ambedkar Medical College and Hospital, Rohini, New Delhi, India.
authors.forename: Renu
authors.initials: R
authors.lastname: Gupta
keywords: Cystic; giant pheochromocytoma; immunohistochemistry