36-year-old otherwise healthy female presented with an atypical pap smear. Biopsy of cervix revealed poorly Differentiated Neuroendocrine Carcinoma. Immunohistochemical staining showed the cells positive for NSE, SYN, CHR, and 90% positive for Ki67 (proliferative index). The findings of the PET-FDG test showed pathological absorption of FDG as a primary tumor of the cervix, towards the left side of the body. Moreover, evidence is seen of nodal metastatic spread in the retroperitoneum and pelvis, mainly on the left.

70-year-old male underwent epileptic seizures. A brain CAT scan showed a space occupying lesion with surrounding edema in his left frontal lobe. A subsequent MRI examination enabled the demonstration of four separated lesions in his brain consistent with metastases. A total body CAT scan demonstrated a mass in the right lung. The diagnosis of poorly differentiated squamous cell carcinoma of the lung was established by bronchoscopy and transbronchial biopsy. The patient was treated by brain irradiation.