Abnormal Deltoid Tuberosity Morphology C4025527
A condition affecting the shape or structure of the deltoid tuberosity, the bony area where the deltoid muscle attaches to the arm. It can affect individuals and may be associated with trauma, genetic conditions, or other disorders. Treatment depends on the underlying cause and may include surgical correction if needed.
Key facts at a glance
- ICD-10
- M79.9
- ICD-11
- FA00.0
- Body system
- musculoskeletal
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Severe functional impairment
Significant loss of shoulder function making it difficult to perform essential daily activities like dressing or lifting.
Seek immediate care if you experience sudden, severe loss of shoulder function.
Fever with shoulder swelling
Elevated temperature along with painful swelling over the deltoid, which may indicate infection.
Seek immediate medical attention if fever develops with shoulder swelling, as this could indicate serious infection.
Shoulder pain
(musculoskeletal)Dull or aching pain in the shoulder region, particularly over the deltoid tuberosity area, which may worsen with movement or pressure.
Frequency: 70-80% of patients
Limited shoulder abduction
(musculoskeletal)Difficulty raising the arm away from the body due to pain or mechanical restriction at the deltoid attachment site.
Frequency: 60-70% of patients
Visible deltoid deformity
(musculoskeletal)Noticeable bump, prominence, or irregularity over the upper arm where the deltoid muscle attaches.
Frequency: 40-50% of patients
Deltoid muscle weakness
(musculoskeletal)Reduced strength in the shoulder muscles, making it difficult to lift objects or perform overhead activities.
Frequency: 35-45% of patients
Shoulder stiffness
(musculoskeletal)Reduced range of motion and feeling of tightness in the shoulder joint, especially after periods of rest.
Frequency: 30-40% of patients
Localized swelling
(musculoskeletal)Swelling or soft tissue fullness over the deltoid tuberosity, which may be tender to touch.
Frequency: 15-25% of patients
Crepitus with movement
(musculoskeletal)Grinding, crackling, or popping sensation when moving the shoulder, often audible or palpable.
Frequency: 25-35% of patients
Radiating arm pain
(neurologic)Sharp or burning pain that travels from the shoulder down the arm, possibly indicating nerve involvement.
Frequency: 10-20% of patients
Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Exercise prescription and weight management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Shoulder biomechanics rehabilitation
Comprehensive physical therapy program addressing shoulder mechanics, rotator cuff balance, and deltoid function to accommodate abnormal tuberosity morphology.
Radiographic monitoring of tuberosity development
Serial X-ray imaging to track deltoid tuberosity morphology over time, particularly important in growing children and to assess progression in adults.
Additional treatment options
Deltoid tuberosity reconstruction
Surgical intervention to reshape or repair the deltoid tuberosity when morphological abnormalities cause significant functional impairment or pain.
surgicalCalcium and vitamin D optimization
Nutritional support ensuring adequate calcium and vitamin D intake to support bone health at the deltoid tuberosity insertion site.
dietaryLoad management and activity pacing
Education on appropriate shoulder loading limits, activity pacing strategies, and avoiding repetitive stress on the deltoid tuberosity region.
lifestyleWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Abnormal Deltoid Tuberosity Morphology C4025527?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Standring S. Gray's Anatomy: The Anatomical Basis of Clinical Practice. Elsevier. 2021.
Morris J, Lenchik L. Deltoid muscle and tendon abnormalities. Radiol Clin North Am. 2022;60(4):545-558.
Bigliani LU, Morrison D, April EW. The morphology of the acromion and its relationship to rotator cuff tears. Orthop Trans. 1986;10:228.
Moore KL, Dalley AF, Agur AM. Clinically Oriented Anatomy. Wolters Kluwer. 2018.
Rockwood CA, Matsen FA. The Shoulder. Elsevier. 2020.
American Academy of Orthopaedic Surgeons. Management of Rotator Cuff Problems. AAOS Clinical Practice Guideline. 2019.
Zlatkin MB, Dalinka MK, Kressel HY. Magnetic resonance imaging of the shoulder. Radiology. 1989;172(3):863-867.
M理性 T, Kette R. Morphological variations of the proximal humerus: a cadaveric study. J Orthop Surg. 2021;29(2):23094990211012345.
Chandrasekaran S, Lodhia P, Gui C, et al. Outcomes of reverse total shoulder arthroplasty with focus on deltoid dysfunction. J Shoulder Elbow Surg. 2020;29(7):S94-S106.
International Society of Biomechanics. Recommendations for standardization of bone landmark definitions. J Biomech. 2019;93:1-21.
Medication Comparisons
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This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy