Risky endoscopic ultrasonography-guided fine-needle aspiration for asymptomatic retroperitoneal tumors.
Paraganglioma, a sporadically occurring rare tumor should be included in the differential diagnosis of retroperitoneal tumors, such as malignant lymphomas, gastrointestinal stromal tumors, sarcoma and carcinoma of unknown primary site. A 58-year-old Japanese woman presented with a large retroperitoneal tumor detected by ultrasonography (US). She had no medical history of hypertension. Computed tomography showed a mass, 7 cm in diameter, located between the pancreas and the inferior vena cava. It was unclear whether the mass originated from the duodenum or the mesentery. Endoscopic ultrasonography (EUS) demonstrated a large solid paraduodenal mass. Doppler US revealed sparse vascularity in the tumor. With the differential diagnosis of retroperitoneal tumor, we carried out EUS-FNA. At the time of the third needle puncture, transient severe hypertension was noted, with a blood pressure measurement of 269/130 mmHg. Data obtained from urine and blood examinations after EUS-fine-needle aspiration indicated a diagnosis of paraganglioma.
Kubota
Kensuke
K
Yokohama City University, Japan. kubotak@yokohama-cu.ac.jp <kubotak@yokohama-cu.ac.jp>
Kato
Shingo
S
Mawatari
Hironori
H
Iida
Hiroshi
H
Akiyama
Tomoyuki
T
Fujita
Koji
K
Yoneda
Masato
M
Takahashi
Hirokazu
H
Inamori
Masahiko
M
Abe
Yasunobu
Y
Kirikoshi
Hiroyuki
H
Kobayashi
Noritoshi
N
Saito
Satoru
S
Nakajima
Atsushi
A
D044963:Biopsy, Fine-Needle / Q000009:adverse effects / Q000379:methods*; D019160:Endosonography; D005260:Female; D006801:Humans; D008875:Middle Aged; D010235:Paraganglioma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000628:therapy; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000628:therapy