01 Anatomy & Embryology Histology, Macroscopic … Phlebology Review Course Venous Embryology &...
Transcript of 01 Anatomy & Embryology Histology, Macroscopic … Phlebology Review Course Venous Embryology &...
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2015 Phlebology Review Course
Venous Embryology &Macroscopic Anatomy & Histology
Sanjeeva Kalva MD, RPVI, FSIRChief, Interventional Radiology
Associate Professor of RadiologyUniversity of Texas Southwestern Medical Center
Dallas, TX 75390
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2015 Phlebology Review Course
Disclosures:• Royalties from Elsevier, Amirsys, Springer• Consultant for CeleNova Biosciences, Koo Foundation• Investor in Althea Healthcare
I will not discuss any off-label use.
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Embryology
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Vitelline & Umbilical Veins
Larsen’s Embryology
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Vitelline & Umbilical Veins
Larsen’s Embryology
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Vitelline Veins (Right & Left):
• Hepatic Veins, Sinusoids• Portal Vein, SMV, IMV, Spl.
V• Portion of IVC
Umbilical Veins• Right: Degenerates• Left: Ligamentum Teres
Vitelline & Umbilical Veins
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Cardinal Veins
Larsen’s Embryology
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Cardinal Veins
Larsen’s Embryology
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Cardinal Veins
Larsen’s Embryology
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Cardinal Veins
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Anterior SVC, Brachiocephalic, Innominate, Internal jugular
Posterior Portion of IVC, Common iliacSubcardinal Portion of IVC, Renal, Gonadal
Supracardinal Portion of IVC, Intercostal, Hemiazygos,Azygos
Cardinal Veins
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• Non-regression of left sided veins/anastomotic veins:• Left SVC• Left IVC, Duplicated IVC• Circum-aortic/Retro-aortic renal Veins• Multiple renal veins/gonadal veins/iliac veins
Anatomical Variations
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• Superficial Veins• Superficial to deep fascia• Drain the skin and subcutaneous tissues
• Deep Veins• Deep to the deep fascia• Drain deep tissues (muscles)
• Perforator Veins• Run across the fascial planes• Connect Superficial veins to Deep veins
• Communicating Veins• Connect veins in the SAME fascial plane
Anatomy
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Upper Extremity Veins
• Superficial Veins• Cephalic• Basilic• Antecubital
• Deep Veins• Radial (Paired)• Ulnar (Paired)• Brachial (Paired)• Axillary• Subclavian
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Thoraco-abdominal Veins
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Porto-Mesenteric Veins
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• Superficial• Great Saphenous• Posterior Accessory GSV• Anterior Accessory GSV• Small Saphenous• Cranial Extension of SSV• Inter-saphenous Vein
• Perforators:• Femoral Canal• Posterior Tibial• Paratibial• Medial Ankle
Lower Extremity Veins
Handbook of Venous Disorders. Gloviczki P, Editor, Hodder Arnold 2009
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• Deep Veins• Common Femoral• Femoral• Profunda femoris• Popliteal• Posterior Tibial• Anterior Tibial• Peroneal
Lower Extremity Veins
Handbook of Venous Disorders. Gloviczki P, Editor, Hodder Arnold 2009
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Vein Histology
diFiore’ss Atlas of Histology with functional correlation, 11th Edition
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Vein Histology
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• Intima• Single layer of endothelial cells• Internal elastic lamina: Thick layer of elastic fibers, Missing in small veins• Bicuspid valves
• Media• Smooth muscle and Collagen• More smooth muscle in proximal GSV, deep veins; Less in small veins• Larger the vein, the less the smooth muscles (Eg: IVC)
• Adventitia• Loose connective tissue, vaso vasorum, nerve fibers• Thickest layer
Vein Histology
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Thank You