About Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

Diagnosis Of The Carcinoid Syndrome Or Carcinoid Tumors

Last Updated on Mar 14, 2016
Font : A-A+

Diagnosis Of The Carcinoid Syndrome And Carcinoid Tumors

When all the symptoms are present in a patient, a diagnosis of carcinoid syndrome is easily made. Riased urinary 5-HIAA in a patient with a carcinoid tumor is the hallmark for the diagnosis.

Advertisement

Cases that present with one or more of the features are to be viewed with suspicion. A consultation with your doctor should never be delayed.

I. Examination of urine

Most often, the doctor confirms his diagnosis by measuring the levels of certain chemicals in the patientís urine. Carcinoids produce a number of biologically active substances most which get metabolised. These get excreted by urine.

Excretion of urinary 5-HIAA in a patient with a carcinoid tumor is a diagnostic hallmark 5-HIAA stands for 5-Hydroxyindoleacetic acid. This is a metabolite of the chemical serotonin that gets secreted by carcinoid tumors. Measurement of serotonin or its metabolites in the patientís urine or plasma gives additional information. Attacks of flushing in a patient accompanied by normal urinary excretion of 5-HIAA it raises the suspicion of diagnoses other than a carcinoid syndrome; for example ethanol ingestion or post menopausal state.

Advertisement

Causes for a false test result

A number of factors interfere with test results. The patient should refrain himself from eating foods like bananas, tomatoes, pineapples, plums, avocados, eggplants, and walnuts. These are rich in serotonin. Cough syrups, muscle relaxants, anti psychotic medications lead to false results. Hence always mention to your doctor about these medications.

II. Imaging techniques to locate the tumor, measure its extent

CT scan: In computed tomography (also called computerized tomography, or computerized axial tomography) a series of detailed pictures of areas inside the body are taken from different angles.

MRI scan: MRI stands for Nuclear Magnetic Resonance Imaging. This is a non invasive technique that doesnít use ionizing radiations unlike a CT scan. Instead strong magnetic fields are used.

Advertisement

Radionuclide scanning: More than 90% of carcinoid tumors can be located using this technique. The principle used is that carcinoids exhibit receptors for the hormone serotonin. A radioactive form of serotonin is injected into the blood and radionuclide scanning is performed.

These imaging techniques helps in localising the tumors, measure the extent of spread, and to identify if the liver has been affected or not.

Echocardiography of heart: The valves of the heart are often affected by carcinoid tumors. This sign come late. Hence it is worth performing an echocardiography of heart so as to find out at the earliest, the damage that the tumor has done to the heart.

References:

  1. Cecil Medicine, 23rd Ed.
  2. Harrisonís Principles of Internal Medicine, 17th Ed

Citations   close

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Dr. Nithin Jayan. (2016, March 14). Diagnosis Of The Carcinoid Syndrome Or Carcinoid Tumors. Medindia. Retrieved on May 19, 2022 from https://www.medindia.net/patients/patientinfo/carcinoid-tumors-diagnosis.htm.

  • MLA

    Dr. Nithin Jayan. "Diagnosis Of The Carcinoid Syndrome Or Carcinoid Tumors". Medindia. May 19, 2022. <https://www.medindia.net/patients/patientinfo/carcinoid-tumors-diagnosis.htm>.

  • Chicago

    Dr. Nithin Jayan. "Diagnosis Of The Carcinoid Syndrome Or Carcinoid Tumors". Medindia. https://www.medindia.net/patients/patientinfo/carcinoid-tumors-diagnosis.htm. (accessed May 19, 2022).

  • Harvard

    Dr. Nithin Jayan. 2021. Diagnosis Of The Carcinoid Syndrome Or Carcinoid Tumors. Medindia, viewed May 19, 2022, https://www.medindia.net/patients/patientinfo/carcinoid-tumors-diagnosis.htm.


Do you wish to consult an Oncologist for your problem? Ask your question

Dr. Amit Jain
Dr. Amit Jain
MBBS, MS
15 years experience
Sai Health Care, Shadara
+ 1 more
Teleconsult Now View Profile
Dr. Rajinder Kaur Saggu
Dr. Rajinder Kaur Saggu
MBBS, MS, FFR
23 years experience
Teleconsult Now View Profile
View All

Post a Comment

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.

Advertisement
Health Topics A - Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z



    Advertisement
    Drugs for Carcinoid Tumors
    Octreotide
    Telotristat ethyl
    What's New on Medindia
    Prevent Hacking of Medical Devices: FDA Sounds Alarm
    Black Water: Benefits and Uses
    World Hypertension Day 2022 - Measure Blood Pressure Accurately, Control It, Live Longer!
    View all
    Advertisement

    Medindia Newsletters Subscribe to our Free Newsletters!
    Terms & Conditions and Privacy Policy.

    Most Popular on Medindia

    Drug - Food Interactions Find a Hospital Blood Pressure Calculator Pregnancy Confirmation Calculator Nutam (400mg) (Piracetam) Loram (2 mg) (Lorazepam) Turmeric Powder - Health Benefits, Uses & Side Effects Vent Forte (Theophylline) Blood - Sugar Chart Blood Donation - Recipients

    Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

    © All Rights Reserved 1997 - 2022

    This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use