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Posterior Triangle Lumps (Cystic Hygroma (Pathology
Congenital…
Posterior Triangle Lumps
Cystic Hygroma
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Presentation
Usually paediatric
Lobulated cystic swelling
Soft and fluctuant
Compressible
Transilluminate brilliantly
↑s in size when infant coughs / cries
Look in the oropharynx
- Cyst may extend into
retropharyngeal space
Complications
- Obstruction of swallowing
- Respiratory obstruction
-
Pharyngeal Pouch
Pathology
Herniation of pharyngeal mucosa through its
muscular coat at its weakest point.
Killian’s dehiscence
- Between thyro- and crico-pharyngeal muscles
that form the inferior constrictor
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Viva
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Complications
- Aspiration → pneumonia
- Diverticular neoplasia (<1%)
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Mx
Non-surgical
- If small and asymptomatic
Surgical: Dohlman’s Procedure
- Minimally invasive endoscopic
stapling
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