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Paragangliomas of the head and neck commonly secrete dopamine, but are referred to as "biochemically silent" because they do not cause the characteristic symptoms associated with a pheochromocytoma. However, methoxytyramine can be utilized to detect the tumors of the head and neck.
Rarely, a pheochromocytoma (tumor of the medullar tissue of the adrenal glands, which are located anterior to the kidney), may result in an adrenergic storm. [20] This type of tumor is not common to begin with, and furthermore, the subtype that can cause massive adrenaline release is rarer still.
Head and neck cancers can cause a broad range of symptoms, many of which occur together. These can be categorised local (head and neck cancer-specific), general and gastrointestinal symptoms. Local symptoms include changes in taste and voice, inflammation of the mouth or throat ( mucositis ), dry mouth ( xerostomia ), and difficulty swallowing ...
Renal angiomyolipomas and cysts are the most common manifestations of TSC involving the kidney. Renal disease is among the most common causes of early death in TSC. One study found that renal lesions were present in 80% of patients by a mean age of 10.5 years. [37] Renal cell carcinoma occurs in 2-5% of patients with TSC at a mean age of 28 ...
A violently ill patient with neck stiffness during the Texas meningitis epidemic of 1911 and 1912. Neck stiffness, stiff neck and nuchal rigidity are terms often used interchangeably to describe the medical condition when one experiences discomfort or pain when trying to turn, move, or flex the neck.
The chemical changes associated with infection of a tumor or its surrounding tissue can cause rapidly escalating pain, but infection is sometimes overlooked as a possible cause. One study [25] found that infection was the cause of pain in four percent of nearly 300 people with cancer who were referred for pain relief. Another report described ...
Pressure on the kidney or ureter from a tumor outside the kidney can cause extreme flank pain. [7] Local recurrence of cancer after the removal of a kidney can cause pain in the lumbar back, or L1 or L2 spinal nerve pain in the groin or upper thigh, accompanied by weakness and numbness of the iliopsoas muscle, exacerbated by activity. [4]
This can occur in kidney failure, those who rapidly stop blood pressure medication, pheochromocytoma, and people on a monoamine oxidase inhibitor (MAOI) who eat foods with tyramine. [2] When it occurs in pregnancy it is known as eclampsia. [2] The diagnosis requires ruling out other possible causes. [1]