caa a22 4500 605539901 CHVBK 20210128100909.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s10396-015-0641-5 doi (NATIONALLICENCE)springer-10.1007/s10396-015-0641-5 Five neonatal cases of pyriform sinus fistula with cervical cystic lesion: a comparison between sonography and other modalities [Elektronische Daten] [Takahiro Hosokawa, Yoshitake Yamada, Yumiko Sato, Yutaka Tanami, Hizuru Amano, Michimasa Fujiogi, Hiroshi Kawashima, Eiji Oguma] Pyriform sinus fistulas are an unusual cause of neck cystic lesions in neonates. A definitive diagnosis requires detection of the fistula, which originates from the pyriform sinus and extends to the cystic lesion. Sonography has been reported to be useful for detecting fistulas. However, there have been no reports of neonatal cases in which sonography could detect fistulas not detected by other modalities, such as barium esophagography, computed tomography (CT), or magnetic resonance imaging (MRI). We describe five neonatal patients with pyriform sinus fistula-appearing cervical cystic lesions. All patients were examined by sonography; of these, three patients were also examined by barium esophagography, two by CT, and one by MRI. The fistula was detected by sonography but not CT in one patient and by barium esophagography but not MRI in one. Two patients whose fistulas were detected by sonography had an oval-shaped and relatively small cystic lesion. One patient whose fistula could be detected only by barium esophagography had a relatively large cystic lesion. In two patients, whose fistulas were not detected by sonography or barium esophagography, sonography revealed air bubbles within the cystic lesions, and a pyriform sinus fistula was suspected. Without requiring ionizing radiation, sonography was thus useful in diagnosing pyriform sinus fistula-appearing cervical cystic lesions in neonatal cases. On the other hand, in two patients whose fistulas were not detected by sonography, the shape of the cystic lesion was polygonal or multicystic. In two of three patients with infectious signs, a fistula could not be detected. The shape and size of the cystic lesion and the presence of infectious signs may be important factors for detecting fistulas. The Japan Society of Ultrasonics in Medicine, 2015 Pyriform sinus fistula nationallicence Sonography nationallicence Barium esophagography nationallicence Neonatal cases nationallicence ALARA nationallicence Hosokawa Takahiro Department of Radiology, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut Yamada Yoshitake Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan aut Sato Yumiko Department of Radiology, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut Tanami Yutaka Department of Radiology, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut Amano Hizuru Department of Surgery, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut Fujiogi Michimasa Department of Surgery, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut Kawashima Hiroshi Department of Surgery, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut Oguma Eiji Department of Radiology, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut Journal of Medical Ultrasonics Springer Japan 42/4(2015-10-01), 579-585 1346-4523 42:4<579 2015 42 10396 https://doi.org/10.1007/s10396-015-0641-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10396-015-0641-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hosokawa Takahiro Department of Radiology, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut NATIONALLICENCE 700 1- Yamada Yoshitake Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan aut NATIONALLICENCE 700 1- Sato Yumiko Department of Radiology, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut NATIONALLICENCE 700 1- Tanami Yutaka Department of Radiology, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut NATIONALLICENCE 700 1- Amano Hizuru Department of Surgery, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut NATIONALLICENCE 700 1- Fujiogi Michimasa Department of Surgery, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut NATIONALLICENCE 700 1- Kawashima Hiroshi Department of Surgery, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut NATIONALLICENCE 700 1- Oguma Eiji Department of Radiology, Saitama Children's Medical Center, 2100 Magome, Iwatsuki, 339-8551, Saitama, Saitama, Japan aut NATIONALLICENCE 773 0- Journal of Medical Ultrasonics Springer Japan 42/4(2015-10-01), 579-585 1346-4523 42:4<579 2015 42 10396