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Concept: Mucocele

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Mucocele is benign, slow-growing, mucous-filled cystic lesions that arise in the paranasal sinuses. It causes progressive distension of the bony walls and induces compressive symptoms. Surgical treatment of paranasal sinus mucoceles includes endoscopic approach or external approach. The authors report a patient of frontal mucocele who presented with a history of progressive unilateral protrusion. Computed tomography scan revealed a large mucocele of the frontal sinus with orbital extension on the same side. He was successfully treated with endoscopic marsupialization without any serious complications.

Concepts: Medical imaging, Radiography, Tomographic reconstruction, Mucocele

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A possible complication of frontal sinus obliteration with fat is the formation of mucoceles. We studied the prevalence of mucoceles as well as and the need for revision surgery.

Concepts: Mucocele

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Isolated sphenoid mucoceles are rare, but due to their close proximity to important vasculonervous structures, local extension may result in serious consequences.

Concepts: Mucocele

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A distended, mucous-filled appendix is known as an appendiceal mucocele. They are a rare form of an appendiceal mass and develop from both benign and malignant processes. Mucoceles can develop secondarily to an obstruction, such as from a fecalith, scarring or, rarely, endometriosis. Only 12 cases of non-neoplastic appendiceal mucoceles caused by endometriosis have been previously described. The association between neoplastic appendiceal mucoceles in the presence of endometriosis is described for the first time in this report.

Concepts: Cancer, Oncology, Benign tumor, Neoplasm, The Association, Appendix cancer, Mucocele

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Plunging ranulas are oral mucoceles that often cannot be visualized directly and thus can be challenging to diagnose and differentiate from other neck lesions. Surgery is the preferred treatment option, but the optimal approach requires careful consideration.

Concepts: Surgery, Mucocele

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Frontal sinus mucoceles are benign, pseudocystic lesion deriving from the obliteration of the sinus ostium, resulting in a continuous mucous accumulation. The growing process of a mucocele leads to a progressive enlargement of the sinus cavity, thickening and eroding its bony walls up to invading the surrounding tissues. The surgical procedure through an endoscopic endonasal approach is the current treatment option for such conditions, but in cases with an extensive bone erosion and intracranial or intraorbital extension, a transcranial approach should be preferred. We report a case of a frontal sinus mucocele with unusual intraorbital and intracranial extension, causing exophthalmos and ophthalmoplegia, removed through a transcranial frontal approach and the subsequent obliteration of the sinus.

Concepts: Surgery, Medical signs, Skull, Erosion, Case, The Current, Mucocele

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Delayed post-traumatic mucoceles are rare. We describe the surgical treatment of a post-traumatic ethmoidal mucocele with intra-orbital extension.

Concepts: Mucocele

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The objective of this study was to evaluate the efficacy of microwave ablation as a substitute for surgery in patients with a mucocele of the anterior lingual salivary glands.

Concepts: Saliva, Oral and maxillofacial surgery, Glands, Salivary gland, Exocrine system, Salivary glands, Mucocele

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The aim of the study was to correlate several studies dating from 1997 to 2015 to identify the most effective treatments for mucocele in the frontal sinus (with/without other paranasal sinuses), considering successful outcomes and recurrence. We aimed to conduct a literature review for articles published between 1997 and 2015. For this, we accessed articles in the SciELO database, as well as LILACS, PubMed, and Google Scholar databases. Were identified 32 work-related injuries in the paranasal sinuses; 2 of these were not related to mucoceles or mucopyocele, 4 had no relation to the frontal sinus, 9 were related to the frontal sinus and other paranasal sinuses, 4 were related to mucocele associated with other sinuses, and 13 involved only the frontal sinus. Endoscopic techniques decrease intra- and postoperative morbidity, reducing the operative time, allow a larger view of the lesion and surrounding anatomical structures, and decrease chances of recurrence. Thus, the successful outcomes have been beneficial to both the surgeon and the patient.

Concepts: Database, Surgery, Google Scholar, Physician, Anatomy, Mucocele

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Mucoceles are mucus-containing cysts that form in paranasal sinuses; although mucoceles themselves are benign, this case report highlights the extensive damage they can cause as their expansion may lead to bony erosion and extension of the mucocele into the orbit and cranium; it also presents a rarely reported instance of frontal sinus mucocele leading to frontal lobe syndrome. A thorough discussion and review of mucoceles is included.

Concepts: Causality, Report, Skull, Frontal lobe, Metaphysics, Frontal lobe disorder, Mucocele