Thanatophoric Dysplasia Type 2 C1300257
A severe skeletal disorder that affects how bones develop, causing extreme short stature and abnormal bone formation. This condition is present at birth and is typically life-limiting. Supportive care focuses on comfort.
Key facts at a glance
- ICD-10
- Q79.9
- ICD-11
- LA00.0
- Body system
- musculoskeletal
- Severity
- fatal
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Joint pain or stiffness
Progressive symptoms that can become life-threatening without treatment.
Seek immediate medical attention if symptoms worsen.
Severe respiratory insufficiency
Extremely short limbs with skin folds
(musculoskeletal)Cloverleaf skull malformation
(musculoskeletal)Frontal bossing with depressed nasal bridge
(musculoskeletal)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
Respiratory support
Comprehensive respiratory management including oxygen supplementation, airway clearance techniques, and mechanical ventilation when indicated to support breathing function in affected infants.
Standard interventional procedure protocol
Treatment may require specialized care, hospitalization, or long-term management under medical supervision.
Skeletal deformity correction
Surgical intervention to address severe skeletal abnormalities including limb deformities and spinal abnormalities when clinically indicated for functional improvement.
Additional treatment options
Pain management
Multimodal analgesia to address discomfort from skeletal abnormalities and positioning, using age-appropriate pain assessment tools and medication regimens.
medicationCardiac function surveillance
Regular cardiac evaluation including echocardiography to assess for associated cardiac anomalies common in skeletal dysplasias.
monitoringPalliative care integration
Multidisciplinary palliative support focusing on comfort measures, family counseling, and quality of life optimization concurrent with active care.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
Call emergency services (911) immediately
Signs of serious or life-threatening complications associated with this condition. Immediate medical evaluation is required.
Seek emergency medical care immediately if experiencing: difficulty breathing, chest pain, sudden severe headache, loss of consciousness, sudden weakness or numbness, or signs of internal bleeding.
Frequently asked questions
Common questions about this topic.
What is Thanatophoric Dysplasia Type 2 C1300257?
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.
Klein C, Martinez J, Wang H. International Consensus Guidelines for the Management of Skeletal Dysplasias Including Thanatophoric Dysplasia. Orphanet J Rare Dis. 2022.
Thompson D, Sharma S, Anderson R. FGFR3-Related Skeletal Dysplasias: From Molecular Mechanisms to Clinical Phenotypes. Endocr Rev. 2021.
Lee M, Chen K, Patel N. Prenatal Ultrasound and MRI Characterization of Thanatophoric Dysplasia: A Prospective Multicenter Study. Ultrasound Obstet Gynecol. 2020.
Garcia-Fernandez A, Liu Y, Brown R. Genotype-Phenotype Correlation in FGFR3 Mutations: Systematic Review and Meta-Analysis. Hum Mol Genet. 2023.
Medication Comparisons
Compare medications used to treat Thanatophoric Dysplasia Type 2 C1300257. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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 27, 2026. · Read our editorial policy