Cyst

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD's weight loss doctor NYC
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Cyst
File:Bronchogenic cyst high mag.jpg
Synonyms
Pronounce	N/A
Specialty	N/A
Symptoms	Lump, swelling, pain
Complications	Infection, rupture
Onset
Duration
Types	N/A
Causes	Blockage of ducts, infection, genetic conditions
Risks
Diagnosis	Physical examination, imaging studies
Differential diagnosis	Abscess, tumor
Prevention
Treatment	Surgical removal, drainage
Medication	Antibiotics if infected
Prognosis	Generally good with treatment
Frequency	Common
Deaths	Rare

The word ‘cyst’ is derived from Greek word kystitis meaningbladder. Kramer (1974) defined cyst as a pathological cavity having fluid, semifluid or gaseous contents and which is not created by the accumulation of pus. It is frequently, but not always, lined by the epithelium. Cysts may arise due to trauma, inflammation and degeneration or retention.

True cyst

True cysts are lined by epithelium.

File:Bronchogenic cyst high mag.jpg

True cyst

Pseudo/False cyst

Pseudo/False cyst are not lined by epithelium. During the initial stages, when the cysts are small they are usually asymptomatic. Secondary infection may result in the formation of abscess, cellulitis, osteomyelitis and subsequent sinus formation. As the cyst enlarges it may cause displacement of roots of teeth, resorption of roots, paresthesia, expansion of the cortical plates and eventually result in pathologic fracture of the jaw.