Rare diseases · Sign or symptom
Abnormal pectoral muscle morphology
Abnormal pec muscles
HP:0011957
What it means
An abnormality of the pectoral muscle, comprising the pectoralis major, a thick, fan-shaped muscle of the anterior chest and the pectoralis minor, a thin, triangular muscle situated underneath the pectoralis major.
Part of the broader category
Abnormal pectoral muscle morphology
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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.