Diagnosis of prostatic neuroendocrine carcinoma: Two cases report and literature review

Figure 1 The diagnosis. Precontrast (A) and postcontrast (B) computed tomography (CT) images show the prostate approximately 6.5 cm × 7.5 cm × 7.2 cm in size with an irregular border and small necrosis in the center region, the solid part enhanced obviously in arterial phase of contrast enhancement CT scanning. T1-weighted image (T1WI, C) show the lesion to be slightly heterogeneous low signal intensity, T2WI (D), and diffusion-weighted image (E) show the same region to be heterogeneous hyperintense. Chest (F), abdominal (G) CT and lumbar (H) magnetic resonance imaging revealed multiple metastases to lungs, liver, and lumbar vertebraes.