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Case Reports
. 2018 Jan 11;23(1):3.
doi: 10.1186/s40001-018-0301-5.

Adenomatoid tumor of the testis mimicking malignant testicular cancer on multiparametric ultrasound

Renate Pichler  1 , Gennadi Tulchiner  2 , Fabian Steinkohl  3 , Afschin Soleiman  4 , Wolfgang Horninger  2 , Isabel Maria Heidegger  5 , Friedrich Aigner  3
Affiliations
Case Reports

Adenomatoid tumor of the testis mimicking malignant testicular cancer on multiparametric ultrasound

Renate Pichler et al. Eur J Med Res. .

Abstract

Background: Adenomatoid tumor is one of the most common histological subtypes of paratesticular cancer arising from the epididymis. In very rare cases, these tumors appear as intratesticular lesions originating in the tunica albuginea, representing a diagnostic challenge.

Case presentation: We present a case of a 51-year-old man with a small (0.9 cm) hyperechoic lesion of the left testicle mimicking testicular cancer on multiparametric ultrasound. The lesion was localized in the peripheral zone, confirming vascularization and increased stiffness on contrast-enhanced ultrasound and real-time elastography. Preoperative tumor markers and hormone levels were within normal ranges. Staging computed tomography was negative. Organ-sparing surgery with tumor enucleation and frozen section analysis was performed, confirming testicular adenomatoid tumor.

Conclusion: Currently, no typical ultrasound features can definitively distinguish intratesticular adenomatoid tumors from malignant testicular masses. Thus, a surgical approach is almost always considered in such a case for both diagnostic and therapeutic purposes.

Keywords: Adenomatoid tumor; Elastography; Testis; Tunica albuginea; Ultrasound.

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Figures

Fig. 1
Fig. 1
a Peripheral, rounded, and hyperechoic lower pole lesion of the left testicle (arrow), connected with the tunica albuginea (asterisk) on B-mode sonography. b No vascularization on baseline color and power Doppler sonography (arrow). c In contrast to color Doppler sonography, the lesion was contrast-absorbing indicating vascularity on CEUS. d RTE demonstrated the lesion with increased stiffness (blue, arrow)
See this image and copyright information in PMC

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