Introduction General Medicine
Question. Enumerate The Causes Of Clubbing.
Or
Enumerate The Causes Of Clubbing Of Fingers.
Or
Write Important Cause Of Digital Clubbing
Answer. Clubbing is a bulbous enlargement of the soft part of terminal phalanges with both transverse and longitudinal curving of nails.
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Causes of Clubbing Fingers
Pulmonary Disorders
- Suppuration of lung
- Bronchiectasis
- Lung abscess
- Suppurative pneumonia
- Tumors of lung
- Mesothelioma
- Primary lung cancer
- Metastatic lung cancer
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Disorders Cardiac
- Cyanotic congenital heart diseases
- Subacute bacterial endocarditis
- Atrial myxoma
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Disorders of the Gastrointestinal System And Liver
- Inflammatory bowel disease
- Regional ileitis
- Ulcerative colitis
- Malabsorption syndrome
- Cirrhosis of liver
- Malignancy of liver
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Disorders of Endocrine System
- Myxedema
- Thyroid acropachy
- Acromegaly
Miscellaneous
- Hereditary
- Idiopathic
- Unilateral: Pancoast tumor, subclavian and innominate artery aneurysm
- Unidigital: Traumatic or tophi deposit in gout
- Only in upper limbs in heroin addicts due to chronic obstructive phlebitis.
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Grades of clubbing
- Grade I: Softening of nail bed because of hypertrophy of tissue at that site.
- Grade II: In addition to grade I changes, there is the obliteration of angle between the nail base and the adjacent skin of the finger.
- Grade III: In addition to grade II changes, the nail itself loses its longitudinal ridges, and becomes convex from above downwards and from side to side. The nails assume the shape of a “parrot’s beak” or the terminal segment may become bulbous like a “drumstick”.
- Grade IV: Finger changes are associated with hypertrophic pulmonary osteoarthropathy.
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