Hand and finger diagnoses: Difference between revisions
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== | ==Background== | ||
[[File:Wrist and hand deeper palmar dissection.svg|thumb|Wrist and hand deeper palmar dissection]] | |||
{{Fingertip anatomy}} | |||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
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{{Hand and finger infections images}} | {{Hand and finger infections images}} | ||
{{DDX distal finger}} | {{DDX distal finger}} | ||
==Evaluation== | |||
*[[Hand exam]] | |||
==See Also== | ==See Also== | ||
Revision as of 19:14, 25 February 2018
Background
Nailtip Anatomy
- The perionychium includes the nail bed and the paronychium.
- The paronychium is the lateral nail fold (soft tissue lateral to the nail bed).
- The hyponychium is the palmar surface skin distal to the nail.
- The lunula is that white semi-moon shaped proximal portion of the nail.
- The sterile matrix is deep to the nail, adheres to it and is distal to the lunule.
- The germinal portion is proximal to the matrix and is responsible for nail growth.
Differential Diagnosis
Hand and finger injuries
- Distal finger
- Other finger/thumb
- Boutonniere deformity
- Mallet finger
- Jammed finger
- Jersey finger
- Trigger finger
- Ring avulsion injury
- De Quervain tenosynovitis
- Infiltrative tenosynovitis
- Metacarpophalangeal ulnar ligament rupture (Gamekeeper's thumb)
- Hand
- Wrist
- Drummer's wrist
- Ganglion cyst
- Lunotriquetral ligament instability
- Scaphoid fracture
- Extensor digitorum tenosynovitis
- Compressive neuropathy ("bracelet syndrome")
- Intersection syndrome
- Snapping Extensor Carpi Ulnaris
- Vaughn Jackson syndrome
- General
Hand and finger diagnoses
Hand and finger infections
- Bed bugs
- Closed fist infection (Fight Bite)
- Hand cellulitis
- Hand deep space infection
- Hand-foot-and-mouth disease
- Herpetic whitlow
- Felon
- Flexor tenosynovitis
- Paronychia
- Scabies
- Sporotrichosis
Look-Alikes
Hand and Finger Infections Images
Hand cellulitis (from cat bite)
Lymphocutaneous sporotrichosis
Distal Finger (Including Nail) Injury
- Distal interphalangeal dislocation (finger)
- Distal phalanx (finger) fracture
- Finger amputation
- Fingertip avulsion
- Finger infection
- Nailbed laceration
- Nail avulsion
- Subungual hematoma