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Martínez-Ortega JI, Gómez-Torres RE. Oral Focal Mucinosis of the Tongue: A Rare Localization for a Rare Entity. Am J Dermatopathol 2023; 45:00000372-990000000-00218. [PMID: 37462208 DOI: 10.1097/dad.0000000000002490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
ABSTRACT Oral focal mucinosis (OFM) is a rare connective tissue disorder that is characterized by the excessive production of hyaluronic acid due to myxoid degeneration of submucosal connective tissue. The disorder typically presents as an asymptomatic nodule or mass in the gingiva or hard palate, and OFM of the tongue is even more unusual. In this report, we present a case of OFM on the tongue in a 72-year-old female patient who presented with a symptomatic lump that had been growing for 6 months on the dorsum of her tongue. The patient reported discomfort and pain while speaking and swallowing, and the lump was visually apparent on examination. OFM is a benign condition that does not have any specific clinical or radiographical features that distinguish it from other more common oral lesions, such as lipoma or fibroma. Therefore, histopathological examination is essential for a definitive diagnosis. The management of OFM typically involves surgical excision of the lesion. In this case, complete surgical removal of the lesion under general anesthesia was performed, and the patient was followed up for 10 months postoperatively. During the follow-up period, there was no evidence of recurrence, and the patient reported significant improvement in her symptoms. In conclusion, OFM is a rare connective tissue disorder that can occur in the oral cavity. Although OFM of the tongue is even rarer, it should be considered in the differential diagnosis of oral lesions. Histopathological examination is essential for definitive diagnosis, and surgical excision is typically the preferred treatment modality.
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Affiliation(s)
| | - Rosa E Gómez-Torres
- Research Institute in Dentistry, Center of Health Sciences, University of Guadalajara, Guadalajara, México
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Silva Cunha JL, Leite AA, de Castro Abrantes T, Vervloet LP, de Lima Morais TM, de Oliveira Paiva Neto G, Kimura TNL, Ferreira SMS, de Albuquerque-Júnior RLC, Abrahão AC, Romañach MJ, Benevenuto de Andrade BA, de Almeida OP, Soares CD. Oral focal mucinosis: A multi-institutional study and literature review. J Cutan Pathol 2020; 48:24-33. [PMID: 33410541 DOI: 10.1111/cup.13813] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/05/2020] [Accepted: 07/15/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND Oral focal mucinosis (OFM) is a rare benign condition of unknown etiology, considered the oral counterpart of cutaneous focal mucinosis. We report the clinicopathologic features of 21 cases of OFM in conjunction with a review of the literature. METHODS Clinical data were collected from the records of five oral and maxillofacial pathology services. All cases were evaluated by hematoxylin and eosin staining, histochemistry, and immunohistochemistry (vimentin, S-100, α-SMA, CD34, and mast cell). RESULTS The series comprised 14 females (66.7%) and seven males (33.3%), with a mean age of 48.2 ± 20.7 years (range: 8-77 years) and a 2:1 female-to-male ratio. Most of the lesions affected the gingiva (n = 6, 28.6%) and presented clinically as asymptomatic sessile or pedunculated nodules with fibrous or hyperplasic appearance. All cases were negative for S-100 protein, CD34, and α-SMA and positive for Alcian blue staining. Conservative surgical excision was the treatment in all cases, and there was only one recurrence. CONCLUSION OFM is a rare benign disorder that is often clinically misdiagnosed as reactive lesions or benign proliferative processes. Dermatologists and pathologists should consider OFM in the differential diagnosis of soft tissue lesions in the oral cavity, mainly located in the gingiva.
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Affiliation(s)
- John Lennon Silva Cunha
- Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Amanda Almeida Leite
- Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Thamiris de Castro Abrantes
- Department of Oral Diagnosis and Pathology, School of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Lorena Passoni Vervloet
- Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Thayná Melo de Lima Morais
- Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | | | | | | | | | - Aline Corrêa Abrahão
- Department of Oral Diagnosis and Pathology, School of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Mario José Romañach
- Department of Oral Diagnosis and Pathology, School of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | | | - Oslei Paes de Almeida
- Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Ciro Dantas Soares
- Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
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