[A case of adrenal ganglioneuroma]

A 40-year-old female was admitted to the department of internal medicine of our hospital for evaluation of left sided diaphragm elevation, cardiomegaly and splenomegaly. CT scan incidentally revealed a 5 X 5 cm solid mass in the right adrenal and the patient was referred to our department of urology. Endocrinological studies and angiography indicated a non-functioning right adrenal tumor without any remarkable signs of malignancy. Right adrenalectomy was performed. The tumor was smooth-surfaced, measured 6 X 5 X 5 cm and weighted 50 g. The cut surface was yellow-white and demonstrated interlacing bundles of fibers. Histopathological examinations revealed a typical structure of ganglioneuroma. Ganglioneuroma is a very rare tumor most of which arise in the posterior mediastinum. To the best of our knowledge, this is the 17th case of adrenal ganglioneuroma in the Japanese literature.