Digital mixoid cyst: Difference between revisions
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==Background== | ==Background== | ||
*Also known as digital mucous cyst or mixoid pseudocyst | *Also known as digital mucous cyst or mixoid pseudocyst | ||
* | *Benign collection of gelatinous material, from degeneration of connective tissue | ||
*Typically affects DIP joint, with swelling over distal phalanx | *Typically affects DIP joint, with swelling over distal phalanx | ||
==Clinical Features== | ==Clinical Features== | ||
[[File:Myxoid-cyst-left-index.jpg|thumb|Digital mucous cyst in left index finger with nail depression]] | |||
*Swelling to distal finger, usually radial aspect +/- pain | *Swelling to distal finger, usually radial aspect +/- pain | ||
*Aspiration yields clear, gelatinous fluid | *Aspiration yields clear, gelatinous fluid | ||
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==Differential Diagnosis== | ==Differential Diagnosis== | ||
{{ | {{Hand Infection DDX}} | ||
==Evaluation== | ==Evaluation== | ||
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==Management== | ==Management== | ||
*Aspiration or [[Incision and drainage|I&D]] | *Aspiration (25g needle) or [[Incision and drainage|I&D]] | ||
*Digital compression | *Digital compression | ||
*May require surgical excision if recurring | *May require surgical excision if recurring | ||
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==External Links== | ==External Links== | ||
*https://www.aocd.org/page/DigitalMucousCyst | |||
==References== | ==References== | ||
<references/> | <references/> | ||
[[Category:Dermatology]] | |||
Latest revision as of 23:36, 31 May 2022
Background
- Also known as digital mucous cyst or mixoid pseudocyst
- Benign collection of gelatinous material, from degeneration of connective tissue
- Typically affects DIP joint, with swelling over distal phalanx
Clinical Features
- Swelling to distal finger, usually radial aspect +/- pain
- Aspiration yields clear, gelatinous fluid
- May communicate with joint space
Differential Diagnosis
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
Evaluation
- Firm nodule to distal finger or toe
- May cause longitudinal depressed groove in nail plate
Workup
- XR of digit may be useful to show joint degeneration, but not required
Management
- Aspiration (25g needle) or I&D
- Digital compression
- May require surgical excision if recurring
Disposition
- Discharge