Bladder ear

A potential source of false interpretation on F-18 FDG PET

Muge Aygen, Isin E. Akduman, Medhat M. Osman

Research output: Contribution to journalArticle

Abstract

Herniation of the bladder into the inguinal canal (bladder ear) is rare and occurs in 1% to 3% of all inguinal hernias. It is commonly seen in infants but rarely observed in adults. Most bladder hernias are asymptomatic but may be discovered unexpectedly during herniorrhaphy or with an occasional intraoperative bladder injury because of partial or near-total cystectomy of the bladder ear in a herniated sac. The appearance of bladder ear hernias on voiding cystourethrography, intravenous pyelography, and CT has been well described. Bladder activity is frequently seen in general nuclear medicine studies with significant bladder activity such as bone scans, renal scans, and PET/CT studies. The finding on PET/CT is what would be expected based on prior CT and IVP results, and in the current case, where such activity could be mistaken for malignancy, such recognition becomes even more important. Restaging PET/CT images of a patient with a history of head and neck cancer revealed a focal intense metabolic activity in the left inguinal canal. Without the CT information, such focal activity could be mistaken for metastatic nodal disease. Intense physiologic metabolic activity in cancer patients may represent potential pitfalls in the interpretation of PET/CT studies. Familiarity with the appearance of bladder ears on PET/CT may facilitate appropriate diagnosis and avoid false interpretation.

Original languageEnglish (US)
Pages (from-to)721-722
Number of pages2
JournalClinical Nuclear Medicine
Volume33
Issue number10
DOIs
StatePublished - Oct 2008
Externally publishedYes

Fingerprint

Ear
Urinary Bladder
Inguinal Canal
Hernia
Urography
Inguinal Hernia
Cystectomy
Herniorrhaphy
Nuclear Medicine
Head and Neck Neoplasms
Neoplasms
Kidney
Bone and Bones
Wounds and Injuries

Keywords

  • Bladder ear
  • Bladder hernia
  • FDG-PET

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Bladder ear : A potential source of false interpretation on F-18 FDG PET. / Aygen, Muge; Akduman, Isin E.; Osman, Medhat M.

In: Clinical Nuclear Medicine, Vol. 33, No. 10, 10.2008, p. 721-722.

Research output: Contribution to journalArticle

Aygen, Muge ; Akduman, Isin E. ; Osman, Medhat M. / Bladder ear : A potential source of false interpretation on F-18 FDG PET. In: Clinical Nuclear Medicine. 2008 ; Vol. 33, No. 10. pp. 721-722.
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