CTICasesChronic Thromboembolic Pulmonary Hypertension (CTEPH) - Peripheral Disease
▶ Watch on YouTube — age-restricted, cannot embed here
[...]. Chronic Thromboembolic Pulmonary Hypertension (CTEPH) - Peripheral Disease. CTICases. Published August 14, 2015. https://str-case-explorer.pages.dev/c/nb4u4
Imaging findings
CT showed mosaic attenuation (ground glass and hyperlucent lung with corresponding vessel size variations), peripheral lobular ground-glass opacities, right heart enlargement, and an enlarged pulmonary artery. Only a few subtle intraluminal webs were identified in the pulmonary arteries. Ventilation-perfusion (V/Q) scan confirmed the diagnosis with multiple peripheral perfusion defects ("rat bites") and normal ventilation, highlighting diffuse peripheral disease not readily apparent on CT.
Key takeaways
V/Q scanning remains a crucial diagnostic tool for chronic thromboembolic pulmonary hypertension (CTEPH), especially in cases with predominantly peripheral disease or subtle CT findings. V/Q discordance (perfusion defects with normal ventilation) is highly specific for CTEPH, and a normal V/Q scan effectively excludes the diagnosis.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Arterial Central Venous Catheter Placement (into aorta) via IJ and Subclavian VeinIatrogenic
- Retained Suction Catheter Tip (Intraoperative Foreign Body)Iatrogenic
- Choriocarcinoma with Hemorrhagic Pulmonary MetastasesNeoplastic
- Anomalous Left Coronary Artery from Pulmonary Artery (ALCAPA) with Proximal Interruption of the Right Pulmonary ArteryCoronary
- Hypertrophic Cardiomyopathy (HCM)Cardiomyopathy
- Loeffler's Endocarditis (Fibrotic Phase)Cardiomyopathy
- Unilateral Acute Respiratory Distress Syndrome (ARDS) due to Left Pulmonary Artery AgenesisPulmonary Vascular
- Aberrant Right Subclavian ArteryAorta & Arteries
See all cases from August 14, 2015 →
Related Vascular cases
- Cavitating Pulmonary Infarct secondary to Pulmonary Embolism
- Interstitial Lung Edema with Lymphatic Pearls
- Pulmonary Embolism Treated with Catheter Thrombolysis
- Acute Pulmonary Embolism with Hyperattenuating Clots on Non-Contrast CT
- Intercostal Artery Pseudoaneurysm secondary to Severe Scoliosis
- Chronic Thromboembolic Pulmonary Hypertension Treated with Pulmonary Thromboendarterectomy