A case of neurofibromatosis type 1 coinciding with bilateral pheochromocytomas, multiple gastrointestinal stromal tumors, and malignant peripheral nerve sheath tumor.
Neurofibromatosis type 1 (NF1) is associated with benign and malignant neoplasms, but the coincidence of abdominal neoplasms is rare. A 65-year-old woman with NF1 had episodes of nausea, tachycardia, hypertension, and loss of consciousness. Bilateral adrenal tumors were detected by abdominal computed tomography, and plasma and urinary catecholamine levels were elevated. Open bilateral adrenalectomy and histological findings revealed bilateral pheochromocytomas (PCCs). Furthermore, malignant peripheral nerve sheath tumor (MPNST) and multiple gastrointestinal stromal tumors (GISTs) were incidentally found in the abdominal cavity. Early diagnosis of abdominal neoplasms in NF1 patients is important because of the risk of malignancy, organic complications and hemorrhagic-obstructive complications.
Department of Endocrinology, Kyoto City Hospital, Japan. yujih@kuhp.kyoto-u.ac.jp
Yuji
Y
Hataya
Yasato
Y
Komatsu
Keisuke
K
Osaki
Yorihide
Y
Fukuda
Teruyuki
T
Sato
Taisuke
T
Morimoto
D000310:Adrenal Gland Neoplasms / Q000473:pathology*; D000368:Aged; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000473:pathology*; D046152:Gastrointestinal Stromal Tumors / Q000473:pathology*; D006801:Humans; D018317:Nerve Sheath Neoplasms / Q000473:pathology*; D009456:Neurofibromatosis 1 / Q000473:pathology*; D010673:Pheochromocytoma / Q000473:pathology*