Uninodular goitre: can be either inactive or a toxic nodule. Multinodular goitre: can likewise be inactive or toxic, the latter called toxic multinodular goitre. Diffuse goitre: the whole thyroid appearing to be enlarged.
Background. Malignant carcinoid syndrome is the constellation of symptoms typically exhibited by patients with metastases from carcinoid tumors. This syndrome is characterized by hot, red flushing of the face; severe and debilitating diarrhea; and asthma attacks.Malignant carcinoid syndrome occurs in fewer than 10% of patients with a carcinoid tumor.Carcinoid tumors arise from neuroendocrine cells, which are widespread in the human body, especially in the organs derived from the primitive intestine.See the image below.his syndrome is characterized by hot, red flushing of the face; severe and debilitating diarrhea; and asthma attacks. Malignant carcinoid syndrome occurs in fewer than 10% of patients with a carcinoid tumor.
Benign tumors are not considered cancerous: their cells are close to normal in appearance, they grow slowly, and they do not invade nearby tissues or spread to other parts of the body. Malignant tumors are cancerous.Left unchecked, malignant cells eventually can spread beyond the original tumor to other parts of the body. The term âbreast cancerâ refers to a malignant tumor that has developed from cells in the breast.enign tumors are not considered cancerous: their cells are close to normal in appearance, they grow slowly, and they do not invade nearby tissues or spread to other parts of the body. Malignant tumors are cancerous.