Emotions can also cause facial flushing, referred to as blushing. This article looks at seven possible causes of facial ...

Some neuroendocrine tumours (NETs) make large amounts of hormones and proteins. The most common substance they make is serotonin. They sometimes release serotonin and the other proteins into the ...

A woman presented with recent onset of episodic nonpruritic flushing. She denied having any associated symptoms, such as palpitations, wheezing, or diarrhea, or any identifiable triggers ...

Carcinoid tumors are part of a heterogeneous group of gastrointestinal and pancreatic endocrine tumors that are characterized by their capacity to produce and secrete hormones, 5-hydroxytryptamine ...