sumber kista
TRANSCRIPT
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(Fig. 35.11)
A residual cyst is one, that is overlooked after the
causative root or tooth is extracted.CausesThe possible causes are as follows :
An incompletely removed periapical granuloma or
cyst, that potentially enlarges
An impacted tooth associated with a lateral dentigerous
cyst is removed, but the cystic lesion is
unrecognized and is leftin situ, this residual cyst
persists and will enlarge
A cystic lesion develops on either a deciduous
tooth or a retained tooth which either exfoliates or is extracted without knowledge of the underlying
pathologic process.
IncidenceIt is less commonly seen than in the radicular
cysts. It is identified mainly in middle-aged and elderly
patients. There is no sex predilection.
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SiteThe incidence is greater in the maxilla than in the
mandible. It is typically seen in edentulous sites (Fig.
35.11A).
Clinical featuresMajority of the cases are asymptomatic
and are discovered on radiographic examination
(Fig. 35.11B). Occasionally in case of large residual
cysts, a pathologic fracture or signs of encroachment
on associated structures may be the presenting
symptoms.
PathologyIt is similar to the underlying process that
was initially present.
Treatment (Figs 35.11C to F)It is similar to that which
is employed for a radicular cyst, care should be taken
to maintain and preserve the contour of the edentulous
ridge.
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- Pre-extraction Radiograph : radiograf sebelum ekstraksi tampak karies yang dalam atau
gigi yang fraktur yang melibatkan pulpa atau diasosiasikan dnegan kista- Bentuk : radiolusensi membulat atau ovoid- Margin : tepi radiopak dengan tampilan unilokular meskipun kista yang terinfeksi tidak
memiliki margin yang tampak jelas
- Appearance :
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- nukelasi : jika kista tidak besar dan usia pasien
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The cyst capsule and wall. The capsule consists of
collagenous fibrous connective tissue.
Cyst fluid. The fluid is usually watery and opalescent but
sometimes more viscid and yellowish, and sometimes shimmerswith cholesterol crystals. A smear of this fluid may show
typical notched cholesterol crystals microscopically