Rare diseases · Sign or symptom
Sinusitis
Sinus inflammation
HP:0000246
What it means
Inflammation of the paranasal sinuses owing to a viral, bacterial, or fungal infection, allergy, or an autoimmune reaction.
In everyday care
Most people with this sign do not have a rare disease — it appears in common conditions far more often. These general reference pages cover the same topic:
Rare diseases that can present with this37
Very common80–99%
10- Autosomal non-syndromic agammaglobulinemia
- Chronic granulomatous disease
- Cyclic neutropenia
- Eosinophilic granulomatosis with polyangiitis
- Granulomatosis with polyangiitis
- Mucopolysaccharidosis type 1
- Mucopolysaccharidosis type 6
- Non-syndromic agammaglobulinemia
- Wiskott-Aldrich syndrome
- X-linked agammaglobulinemia
Common30–79%
12- Cleidocranial dysplasia
- Febrile infection-related epilepsy syndrome
- Felty syndrome
- Fragile X syndrome
- Fusariosis
- Immunodeficiency by defective expression of MHC class II
- Immunodeficiency due to selective anti-polysaccharide antibody deficiency
- Lymphedema with yellow nails
- Rheumatic fever
- T-B-NK- severe combined immunodeficiency due to adenosine deaminase deficiency
- Thymoma-hypogammaglobulinemia syndrome
- Zygomycosis
The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.
Part of the broader category
Also called: Sinus disease · Sinus infection
Tracking symptoms like this for someone? Eleplan keeps symptoms, diagnoses, medications and every specialist in one plan.
Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.