An increased calcitonin serum level is suggestive of a medullary thyroid cancer (MTC), but is
not pathognomonic. The possibility of false positives or other calcitonin-secreting …

The bronchopulmonary (BP) and gastroenteropancreatic (GEP) organ systems harbor the
majority of the neuroendocrine neoplasms (NENs) of the body, comprising 20 and 70% of all …

Paraneoplastic syndromes denote rare but notable phenomena caused by the tumour
mediated release of bioactive substances. Peptide and non-peptide hormone causes are …

Background Hypercalcemia of malignancy, as a paraneoplastic syndrome, is the most
common metabolic disorder that accounts for 30% of malignancies and usually has a poor …

Background Hypercalcemia is a common paraneoplastic syndrome which can occur in up to
10% of patients with advanced neoplasms. Paraneoplastic parathyroid hormone-related …

Background In this article, we present a case of neuroendocrine neoplasm of unknown
primary origin (UPO NEN), which is a rare cause of ectopic Cushing's syndrome (ECS) …

Background: Neuroendocrine neoplasms (NEN) originate from neuroendocrine cells
ubiquitously spread throughout the body. Hypercalcemia associated with cancer is the most …

Calcitonin-secreting neuroendocrine neoplasms of the lung are rare, with few cases
reported in the literature. Differentiating between medullary thyroid carcinoma and an …

Peripheral neuropathy is a common referral for patients to the neurologic clinics.
Paraneoplastic neuropathies account for a small but high morbidity and mortality subgroup …

Pancreatic neuroendocrine neoplasms (pNENs) are relatively rare tumors that have been
increasingly recognized in recent years. They are highly heterogeneous and exhibit a …