Isolated Testicular Metastasis From Prostate Cancer: A Rare Presentation 15 Years Posttreatment.

Testicular metastases from prostate cancer (PCa) are exceedingly rare and are typically accompanied by other metastatic sites. We present the case of an 82-year-old male patient who developed isolated testicular metastasis 15 years after undergoing radiotherapy and androgen deprivation therapy (ADT) for localized PCa. The patient presented with a palpable left testicular mass, which was confirmed to be a metastatic prostate adenocarcinoma by histopathological and immunohistochemical analyses.

Thyroid nodule with arteriovenous malformation: under-recognized cause of increased vascularity.

Background: Head and neck arterio-venous malformations (AVM) are not frequent lesions and no thyroid cases have been reported to date; as hypervascular nodular lesions, they can be misdiagnosed as malignant.

Findings: We present two patients with palpable thyroid nodules with suspicions of malignancy based on the hypervascular imaging findings. Histologically, these lesions were well-defined adenomatous nodules with multiple interconnected blood vessels of variable size, many of them dilated and arranged predominantly at the periphery of the lesions.