2-year-old female had been diagnosed with Pleuropulmonary Blastoma. The disease extent included the lung and pleura with no signs of metastatic spread. It was decided to start with 3 cycles of chemotherapy and afterwards to carry out a CT scan reassessment and surgical operation. The expert agrees that patients treated with combination of chemotherapy and complete surgical resection do better. Achieving total resection of the tumor results in a significantly better prognosis, whereas extrapulmonary involvement at diagnosis results in worse prognosis.

2-year-old girl was diagnosed with pleuropulmonary blastoma (PPB). She presented with cough and fever which was treated as pneumonia. When her symptoms did not improve, a chest X-ray showed a right lower lobe infiltrate with pleural effusion and a cystic lesion superiorly. She was further treated with antibiotics and improved clinically, but follow-up with chest CT showed a persistent cystic area in the right lower lobe and pneumothorax. She thus underwent pleural drainage and thoracoscopic biopsy, revealing a diagnosis of "cystic pleuropulmonary blastoma".

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.

47-year-old female who had the onset of persistent vertigo. The first evaluations revealed right beating nystagmus on gaze straight and to the right, unsteady gait with limb ataxia, and positive head thrust to the left. Improvement seemed to be occurring in that gait deviation with eyes closed was no longer present. Vestibular physical therapy exercises were started. On the next evaluations there was paroxysmal positional vertigo from the left ear and minimal neurosensory hearing loss. An audiogram showed minor neurosensory deafness.

36-year-old otherwise healthy female underwent routine tests that found atypical cells in Pap smear. Her cervix was biopsied, and found poorly differentiated neuroendocrine carcinoma. 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. In the expert's opinion the patient has locally extensive small cell neuroendocrine carcinoma of the cervix with extensive pelvic and PA adenopathy.

1.5-year-old male suffered from eye swelling. His MRI revealed expansive lesion of left lateral orbital wall origin, with compression on the lateral rectus muscle. Later he was hospitalized due to fever and vomiting in left orbital lesion, suspecting a metastatic neuroblastoma. His eye examination revealed exophthalmus of the eye with exophoria and light dysfunction of the lateral rectus. His biopsies were indicative of stroma-poor neuroblastoma.

1.5-year-old male suffered from eye swelling. His MRI revealed expansive lesion of left lateral orbital wall origin, with compression on the lateral rectus muscle. Later he was hospitalized due to fever and vomiting in left orbital lesion, suspecting a metastatic neuroblastoma. His eye examination revealed exophthalmus of the eye with exophoria and light dysfunction of the lateral rectus. His biopsies were indicative of stroma-poor neuroblastoma.

66-year-old female was diagnosed, following persistent cough, with non-operable tumor of her lung with satellite nodules, and chemotherapy was initiated (first Cisplatin and Gemcitabine, and then switched to Tarceva). Response evaluation following the fourth cycle of chemotherapy showed either stability or an initiation of tumor response, but bone scintigraphy that was performed 6 months later revealed an area of increased uptake in the left hemithorax which could be suggestive of a secondary bone lesion.

21-year-old female with an acute onset of a unilateral sixth cranial nerve deficit. Brain MRI showed at least a dozen white matter lesions, one of them contrast-enhancing. Sensory evoked potentials showed a bilateral increase in latency. Multiple sclerosis was diagnosed, and the patient was treated by corticosteroids, followed by improvement of symptoms. The first follow-up revealed no focal neurological signs with a history of a transitory unilateral lower limb hyposthenia. On the second visit, a horizonto-rotatory nystagmus and irregular paraesthesia in the right toes are documented.

11-months-old male showed signs of tumefaction in the left frontotemporal region. An ultrasound showed a solid noncalcified neoformation, and a brain CAT scan showed a small solid lesion resulting in erosion of the cranial theca both in the external and internal table. Based on clinical status and tomodensitometric appearance, the diagnosis of suspected eosinophilic granuloma or hystiocytosis X was made, and a surgical curettage of the craniolacunia was recommended in order to comfirm the diagnosis.

21-year-old female with an acute onset of a unilateral sixth cranial nerve deficit. Brain MRI showed at least a dozen white matter lesions, one of them contrast-enhancing. Sensory evoked potentials showed a bilateral increase in latency. Multiple sclerosis was diagnosed, and the patient was treated by corticosteroids, followed by improvement of symptoms. The first follow-up revealed no focal neurological signs with a history of a transitory unilateral lower limb hyposthenia. On the second visit, a horizonto-rotatory nystagmus and irregular paraesthesia in the right toes are documented.

78-year-old female with history of diabetes, and meningioma complicated by neurologic deficits following surgery, was diagnosed with progressive iodine-refractory metastatic papillary thyroid carcinoma (PTC). Her initial work-up revealed lung metastasis. She underwent a right thyroidectomy and then left thyroidectomy and laryngectomy, and subsequently received I-131 on 8 occasions. She had a drop in thyroglobulin levels to the early treatments, but most recently, thyroglobulin has steadily increased.

45-year-old male who presented with acute onset of flaccid paraparesis more pronounced on the left, sensation of current shocks in both legs and sensory level from the umbilicus downwards. The symptoms have reached their pick within less than a day. On examination the left lower limb was plegic and the right lower limb was partially weak. EMG was interpreted as demyelinating sensorimotor neuropathy. MRI showed hyperintense signals at the dorsal terminal segment of the marrow consistent with myelitis.