Adrenal Schwannoma: a rare adrenal incidentaloma

Abstract

Adrenal schwannoma is a rare type of adrenal incidentaloma and is found in the medulla. There have been only 33 reported cases worldwide. We present a 56-year-old female referred to our institution for a history of abdominal discomfort and a left adrenal solid mass incidentally discovered in USG. Patient underwent surgical excision of the tumour. Histopathologic examination showed a neoplasm composed of cells arranged in interlacing fascicles with alternating hyper and hypo cellular areas, Immunohistochemistry (IHC) showed positive for S100 compatible with adrenal schwannoma.