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Case Reports in Otolaryngology
Volume 2016, Article ID 1343106, 5 pages
Case Report

Iliopsoas Abscess Possibly due to Klebsiella pneumoniae Infection after Chemoradiotherapy for Hypopharyngeal Cancer

1Department of Otolaryngology, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan
2Department of Hematology, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan

Received 20 October 2015; Revised 25 December 2015; Accepted 20 January 2016

Academic Editor: Rong-San Jiang

Copyright © 2016 Yukiyoshi Hyo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Iliopsoas abscess was once an uncommon condition but now occurs somewhat more frequently due to the increasing number of immunocompromised patients, such as those with diabetes. We encountered a case of iliopsoas abscess following chemoradiotherapy for hypopharyngeal cancer. A 60-year-old man was admitted for a sore throat and left neck swelling. Hypopharyngeal cancer was diagnosed, but the patient refused surgery. After two rounds of chemotherapy, febrile neutropenia developed and chest computed tomography (CT) revealed an iliopsoas abscess. The platelet count was low but recovered after administration of antibiotics and could not be explained by puncture of the abscess. CT-guided drainage eventually improved his symptoms. Even for disorders of the head and neck region, iliopsoas abscess should be suspected in immunocompromised patients who develop a fever. CT and magnetic resonance imaging should be performed at an early stage as it is important to determine whether surgical drainage is indicated.