Treatment of Submandibular Sialolithiasis with a Large, Non-Palpable Stone (≥4 mm, Posterior Region)

This protocol covers a specific presentation of submandibular sialolithiasis: the calculus is in the posterior region of the duct, measures 4 mm or more in diameter, and is not detectable by bimanual palpation.

Clinical Scenario — Submandibular Gland Calculus

Stone size and posterior location are the defining features here. Because the calculus is not bimanually palpable and reaches a diameter of at least 4 mm, it falls outside the range where straightforward basket retrieval is applicable. These characteristics determine the choice of intervention.

Approach (partial overview)

Management in this scenario involves a fragmentation-based or endoscopic strategy — the threshold of 4 mm is the key driver. The complete procedural algorithm, including the specific technique and all procedural details, is contained in the full protocol.

A fragmentation or endoscopic intervention is indicated; the full regimen is in the structured protocol.

Instant Access to Structured Evidence-Based Regimens

References

DOI: 10.1051/mbcb/2018039

calculi smaller than 4 mm may be removed using a basket probe, while larger stones will require endocanal fragmentation (endoscopic laser) or external fragmentation (extracorporeal lithotripsy);

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