PMC5899814_01
a) Extraoral view showing swelling in the submental region extending bilaterally to the submandibular region. b,c) Magnetic resonance imaging axial and sagittal view showing well defined altered signal intensity soft tissue mass lesion involving the floor of the mouth with extension into the submental region displacing the left submandibular gland.
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F1
Extraoral examination revealed a swelling of size 5x4 cm in the submental region extending posteriorly bilaterally till the submandibular region (Fig. 1a).
a,b) Excised lesion in toto.
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F2
An MRI was advised and the report suggested a well defined altered signal intensity soft tissue mass lesion involving the floor of the mouth with extension into the submental region displacing the left submandibular gland (Fig. 2a,b). A cervical incision was made, layerwise dissection was done, lesion was identified and excised in toto after releasing the adhesions (Fig. 2a,b).
a) Histopathology of Plunging Ranula (H and E)-Pseudocystic cavity filled with mucin and mucinophages surrounded by capsule and adjacent minor salivary gland tissue-(x100). b) Postoperative extraoral view showing no evidence of relapse after two year follow up.
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F3
The post-operative report was consistent with the preoperative report confirming the diagnosis of ranula showing pseudocystic cavity filled with foamy histiocytes, extravasated RBC's (Fig. 3).