## 1 Introduction  
A muccole is a prevalent oral lesion, with histological findings indicating its occurrence in approximately 11.6% to 24.5% of all pediatric biopsies [1, 2]. This lesion can affect individuals of various age groups, including neonates, infants, and adults [1, 2]. Clinically, mucocles typically manifest as dome-shaped, intramucosal growths, most frequently observed on the lower lip. Due to its clinical and histological characteristics, the lesion can be considered a pseudocyst. They can also occur near other salivary gland ducts, such as those in the palate, the ventral part of the tongue, buccal glands, upper labial glands, and the retromolar region [1, 2]. Mucoceles can appear in different regions of the oral cavity, including the lower lip, tongue, floor of the mouth, and inner cheeks. Lower lip mucoceles are particularly common due to their increased vulnerability to trauma from accidental biting or repeated friction. These lesions are closely linked to minor salivary glands that are distributed throughout the oral mucosa, responsible for saliva production to aid in digestion and lubrication [2]. Mucoceles are typically rounded, bluish, or translucent in appearance and can vary in size from 1 mm to several centimeters in diameter [2, 3]. On a histological level, mucoceles exhibit granulomatous tissue with mucosal liquid content, and in cases of inflammation, neutrophils and macrophages may be present [3]. They are considered benign and asymptomatic growths, with a duration that can extend over years [3, 4].  
These lesions can arise from two distinct mechanisms: extravasation, resulting from the rupture of a minor salivary gland duct and the accumulation of mucin in the surrounding soft tissue, subsequently surrounded by granulation tissue; or retention cysts, which occur due to ductal obstruction, leading to mucin accumulation and ductal epithelium lining, making it a true cyst [2; 3; 4]. In the oral cavity, mucoceles located in the floor of the mouth are commonly referred to as \"ranula.\" Ranulas often involve submandibular glands, originating from either the [PERSON]'s duct or, in some cases, [PERSON]'s duct, associated with the sublingual gland. Trauma, such as accidental biting, repetitive irritation, or minor surgical procedures, can trigger the rupture or blockage of the duct, leading to an inflammatory response and the enlargement of the cystic cavity [5; 6].  
Differential diagnoses for mucoceles may include fibrous hyperplasia, focal papilloma, lipoma, fibroma, mucoepidermoid carcinoma, bullous lichen planus, pemphigoid, and herpes [5; 6].  
While certain mucoceles may naturally resolve within a brief period, if they persist chronically, surgical intervention or marsupialization becomes necessary [7]. Numerous therapeutic approaches have been outlined in the medical literature, including surgical excision with a scalpel, carbon dioxide ablation, laser excision, marsupialization, and cryosurgery [7]. In the event of a recurrence, it is recommended to remove the cyst, together with the adjacent salivary glands, down to the muscular layer [8]. Presently, surgical enucleation stands as the most commonly employed technique for this purpose, but non-surgical methods are also described in the literature, such as micro-marsupialization, the topical application of clobetasol, corticosteroid use, and gamma-Linoleic acid [9].