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Living with Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia

A rare, poorly understood lung condition in which certain hormone-making cells overgrow, sometimes with cough or shortness of breath.

Understanding Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia

Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH) is a rare, poorly understood lung condition in which certain hormone-making lung cells overgrow.

These are pulmonary neuroendocrine cells, which get signals from nerve cells. Some people have no obvious symptoms. Others have signs of airway disease. It is considered a precancerous condition, as studies suggest it may be a forerunner of pulmonary carcinoid tumors. GARD lists onset in adulthood and older adulthood.

Signs & symptoms

Some people have no symptoms. When present, GARD lists these:

  • Long-lasting dry cough
  • Shortness of breath with activity
  • Wheezing

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include cancer specialists and lung and breathing specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Neuroendocrine Tumor Research Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Cancer specialists (oncologists); Lung and breathing specialists (pulmonologists)
Expert care
Expert lists: Neuroendocrine Tumor Research Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Neuroendocrine Tumor Research Foundation
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
How often should my lungs be checked with scans or breathing tests?
Could I have carcinoid tumors?
Which specialists, such as pulmonology, should follow my care?

Quick facts

Symptoms usually startAdult and as an Older Adult

GARD says the cause of DIPNECH is currently unknown.

Respiratory

Also known as: dip-nech; dipnech; dipnech - diffuse idiopathic pulmonary neuroendocrine cell hyperplasia

Patient organizations

Source: NIH GARD · Diffuse idiopathic pulmonary neuroendocrine cell hyperplasiaGARD ID 10780 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia.

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