copyright © 2010 delmar, cengage learning. all rights reserved. chapter 10 lymphatic system...

Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Chapter 10

Lymphatic System Diseases and Disorders

Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Anatomy and Physiology

• Lymph vessels, ducts, and nodes

• Protects body from infection by filtering bacterial and nonbacterial products

• Prevents waste products from entering circulatory system

• Dependent on vascular system

• Lymph is clear fluid


Lymph and Blood Vessels


Anatomy and Physiology

• Two divisions of lymph system:– Right lymphatic duct drains lymph from head, upper torso,

and right arm

– Left lymphatic duct• Also known as thoracic duct

• Rest of body drains through this duct

– Organs related to lymph system:• Tonsils, thymus gland, and spleen


Animation

Click Here to Play Lymphatic System Animation


Common Signs and Symptoms

• Enlarged lymph glands or nodes, fever, fatigue, and weight loss

• Most diseases of lymphatic system related to diseases of other systems


Common Signs and Symptoms

• Lymphocytosis– Increased WBCs

• Lymphocytopenia– Decreased WBCs


Diagnostic Tests

• Complete blood count (CBC) with differential

• Lymphangiography– X-ray of lymph system after dye injection

• MRI

• CAT scan

• Biopsy of lymph nodes


Common Diseases of the Lymphatic System

• Lymphadenitis– Inflammation of lymph glands

– Symptoms:• Swelling

• Pain

• Tenderness



• Lymphangitis– Swelling of lymph vessels due to inflammation caused by

strep infections following trauma

– Characterized by red streak at bacterial entry extending to area of lymph node



• Lymphangitis– Other symptoms:

• Fever

• Chills

• Malaise

• Cellulitis



• Lymphangitis– Treatment:

• Antibiotics

• Warm, moist packs

• Elevation of affected area



• Lymphedema– Abnormal collection of lymph fluid in extremities

– Possible causes:• Surgery or radiation treatments

• Pregnancy

• Burns

• Trauma



• Lymphedema– Treatment:

• Antibiotics

• Compression therapy

• Surgical intervention depending on cause


Lymphedema

Photo courtesy Mark L. Kuss



• Lymphoma– Neoplasms affecting lymphoid tissue

– Affects normal lymphocyte production leading to impaired immunity

– Most common type of blood cancer in United States



• Mononucleosis– Viral infection

– Somewhat contagious

– Also known as kissing disease


Rare Diseases

• Kawasaki disease– Also known as mucocutaneous lymph node syndrome

– Acute febrile disease

– Found mostly in children


Rare Diseases

• Kawasaki disease– Symptoms:

• Rash similar to scarlet fever

• Edema of feet and hands

• Lethargy

• Congestion

– Supportive treatment


Effects of Aging

• Decreased ability to produce antibodies– Thus, more prone to infections

• Increased susceptibility to autoimmune disorders

• Impairment of vascular system also impacts function

copyright © 2010 delmar, cengage learning. all rights reserved. chapter 10 lymphatic system...

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diseases of lymphatic

lymphatic system diseases

vascular system lymph

divisions of lymph system

common diseases

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