TriangleFOR PATIENTS · SOURCE READING
Follow-up tests may be needed.
Source: Langerhans Cell Histiocytosis Treatment (PDQ®)–Patient Version, National Cancer Institute.
Source updated: June 6, 2024 · Captured 2026-09-09.
Selected source text with whitespace normalised. This Triangle page is not an NCI PDQ summary. Independent clinical review is pending.
Context: Treatment Option Overview for LCH
LCH patients should be monitored for many years because of the risk of reactivation (recurrence). Some of the tests that were done to diagnose LCH may be repeated. This is to see how well the treatment is working and if there are any new lesions. These tests may include:
Source links and citations
Physical exam.
Source links and citations
Neurological exam.
Source links and citations
Ultrasound exam.
Source links and citations
MRI.
Source links and citations
CT scan.
Source links and citations
PET scan.
Source links and citations
Other tests that may be needed include:
Brain stem auditory evoked response (BAER) test: A test that measures the brain's response to clicking sounds or certain tones to detect some types of hearing loss.
Source links and citations
Pulmonary function test (PFT): A test to see how well the lungs are working. It measures how much air the lungs can hold and how quickly air moves into and out of the lungs. It also measures how much oxygen is used and how much carbon dioxide is given off during breathing. This is also called a lung function test.
Source links and citations
Chest x-ray: An x-ray of the organs and bones inside the chest. An x-ray is a type of energy beam that can go through the body and onto film, making a picture of areas inside the body.
Source links and citations
The results of these tests can show if your condition has changed or if the cancer has recurred (come back). These tests are sometimes called follow-up tests or check-ups. Decisions about whether to continue, change, or stop treatment may be based on the results of these tests.
Source links and citations
Preserved source evidence · Independent clinical review pending · Not medical advice