Neuroimaging of disseminated germ cell neoplasms

Imaging of Metastatic Germ Cell Tumors in Male Patients From Initial Diagnosis to Treatment-Related Toxicities: A Primer for Radiologists

OBJECTIVE. This review describes the influence of histology and metastatic sites on prognosis in male patients with metastatic germ cell tumors (GCTs) and explains the role imaging in assessing therapeutic response, residual disease, recurrence, sand treatment-related toxicities. CONCLUSION. Seminomatous and nonseminomatous GCTs differ in imaging appearance, pattern of spread, and prognosis, and an organ-based approach is helpful in prognostication. Multimodality imaging aids in accurate staging, prognostication, characterization of treatment response, and identification of therapy-related toxicity.

Haemorrhagic cerebral metastases from malignant testicular teratoma

Cerebral metastases from malignant testicular teratoma may show complex appearances with magnetic resonance imaging (MRI), which are consistent with changes resulting from repeated haemorrhage. Haemorrhage causes enlargement and symptomatic progression of cerebral lesions, and this can occur even when extracranial disease or other cerebral lesions remain static.