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Introduction  Meckel’s diverticulum is a common congenital abnormality of gastrointestinal tract in children. Planar scintigraphy using Technetium-99m pertechnetate is widely used in the diagnosis of Meckel’s diverticulum. Single photon emission computed tomography/computed tomography (SPECT/CT) fusion imaging may help to locate the Meckel’s diverticulum lesion. We now present a Meckel’s diverticulum case which tends to be missed.    Case description  The patient was diagnosed with Mecke’s diverticulum by planar scintigraphy in 2007. After seven years, a recurrence of hematochezia made the patient undergo planar scintigraphy again. However, the concentration on planar image was located at the right kidney level, we could not determine whether it was caused by physiological uptake of the right kidney or by an ectopic gastric mucosa. Using SPECT/CT technique, we confirmed that the lower part of the concentration was from a Meckel’s diverticulum from the small intestine based on the functional and anatomical information together.    Discussion and Evaluation  For concentrations about the kidney level, planar scintigraphy is not enough to be diagnostic of Meckel’s diverticulum. SPECT/CT imaging may be beneficial for a definitive diagnosis. Also, fusion images may provide precise localization of the lesion. To make sure that patients obtain optimal benefit from a SPECT/CT examination, we have to balance the priority between information of anatomic location and avoiding redundant radiation to the patients.    Conclusions  Our case study suggest that for cases with ambiguous planar scintigraphy images, SPECT/CT imaging should be performed to obtain a definitive diagnosis.    Electronic supplementary material  The online version of this article (doi:10.1186/s40064-016-2928-4) contains supplementary material, which is available to authorized users.

Incremental value of SPECT/CT in detection of Meckel’s diverticulum in a 10-year-old child