Diagnosis of Multiple endocrine neoplasia type 1
Diagnostic Test list for Multiple endocrine neoplasia type 1:
The list of medical tests
mentioned in various sources as
used in the diagnosis of Multiple endocrine neoplasia type 1
includes:
Multiple endocrine neoplasia type 1 Diagnosis: Book Excerpts
Tests and diagnosis discussion for Multiple endocrine neoplasia type 1:
Each of us has millions of genes in each of our
cells, which determine how our cells and bodies function. In people with
MEN1, there is a mutation, or mistake, in one gene of every cell. A
carrier is a person who has the MEN1 gene mutation. The MEN1
gene mutation is transmitted directly to a child from a parent carrying
the gene mutation.
The MEN1 gene was very recently identified. As of 2001, a small
number of centers around the world have begun to offer MEN1 gene
testing on a research or commercial basis. The likelihood of finding a
mutation in an MEN1 family has varied from 60 percent to 94 percent
depending on methods. When a mutation is found, further testing in other
relatives can become much easier. Many relatives can be tested once and be
found without the known MEN1 mutation in their family, and then
they can be freed from uncertainty and from any further testing ever for
MEN1. When a mutation is not found in a family or isolated case, it does
not prove that no MEN1 mutation is present. Depending on the
clinical and laboratory information, it may still be very likely that a
mutation is present but undetected.
In the meantime, though, screening of close relatives of persons with
MEN1, who are at high risk, generally involves testing for
hyperparathyroidism, the most common and usually the earliest sign of
MEN1. Any doctor can screen for hyperparathyroidism by testing the blood
for total calcium and sometimes one or two other substances such as
ionized calcium and parathyroid hormone. An abnormal result indicates that
the person probably has MEN1, but a normal finding in all cannot rule out
the chance that he or she will develop hyperparathyroidism at a later
time. Blood testing can usually show signs of early hyperparathyroidism
many years before symptoms of hyperparathyroidism occur.
(Source: excerpt from Multiple Endocrine Neoplasia Type 1: NIDDK)
Diagnostic Tests for Multiple endocrine neoplasia type 1: Online Medical Books
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Multiple endocrine neoplasia:
Diagnosis
(Professional Guide to Diseases (Eighth Edition))
Investigating symptoms of pituitary tumor, hypoglycemia, hypercalcemia, or GI hemorrhage may lead to a diagnosis of MEN. Diagnostic tests must be used to carefully evaluate each affected endocrine gland. For example, radioimmunoassay showing increased levels of gastrin in patients with peptic ulceration and Zollinger-Ellison syndrome suggests the need for follow-up studies for MEN I because 50% of patients with Zollinger-Ellison syndrome have MEN. After confirmation of MEN, family members must also be assessed for this inherited syndrome.
Magnetic resonance imaging or computed tomography scan of the abdomen may show pancreatic tumor. Insulin test may show increased levels and fasting blood sugar may be low.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
Peptic ulcers:
Diagnosis
(Professional Guide to Diseases (Eighth Edition))
CONFIRMING DIAGNOSIS Esophagogastroduodenoscopy confirms the presence of an ulcer and permits cytologic studies and biopsy to rule out H. pylori or cancer.
Diagnosis may be confirmed by the following tests:
❑ Barium swallow or upper GI and small-bowel series may reveal the presence of the ulcer. This is the initial test performed on a patient whose symptoms aren’t severe.
❑ Laboratory analysis may detect occult blood in stools.
❑ Serologic testing may disclose clinical signs of infection such as an elevated white blood cell count.
❑ Carbon 13 (13C) urea breath test results reflect activity of H. pylori.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
Peptic ulcers:
Diagnosis
(Handbook of Diseases)
A patient with dyspepsia may have an upper GI series to help diagnose a peptic ulcer. For a patient with a confirmed gastric ulcer, an upper endoscopy should be performed to help distinguish between benign and malignant disease. An endoscopy should also be performed in a patient with GI bleeding to identify areas of ulceration. In a patient with a history of peptic ulcer disease, H. pylori may be diagnosed with urease breath testing or serologic testing. H. pylori can also be diagnosed by biopsy via upper endoscopy.
Other tests may disclose occult blood in the stools and a decreased hemoglobin level and hematocrit from GI bleeding.
» READ BOOK EXCERPT ONLINE »
Source: Handbook of Diseases, 2003
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