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Sialolipoma: A Rare Tumor Recently Recognized as a Separate Entity
ORAL AND MAXILLOFACIAL PATHOLOGY e190 Abstracts PE-301 - SIALOLIPOMA: A RARE TUMOR RECENTLY RECOGNIZED AS A SEPARATE ENTITY. TAIANE PRISCILA GARDIZANI, JOSÉ BURGOS PONCE, HELITON GUSTAVO DE LIMA, KAREN HENRIETTE PINKE, HENRIQUE MARTINS FRANÇA BORGES, CLEVERSON TEIXEIRA SOARES, VANESSA SOARES LARA. FACULDADE DE ODONTOLOGIA DE BAURU (FOB) - UNIVERSIDADE DE SÃO PAULO (USP). Sialolipoma is a new category of benign lipomatous tumors of the salivary glands, that is also a rare variant of salivary gland lipoma. Characteristics include mature adipose elements and salivary gland tissue that is well-circumscribed by a thin fibrous tissue. Until now, fewer than 40 cases have been reported. Few occurred in the minor salivary glands and one was in the tongue. Woman, 37, had an asymptomatic and slow-growing exophytic nodular lesion on the tongue that measured 1 cm and had well-defined boundaries. The histopathological diagnosis was sialolipoma. The description of sialolipoma is useful for distinguishing it from other lesions that also affect adipose and gland tissues; these include lipomatosis, fibrolipoma, lipoma, and lipomatous adenomas. We regard sialolipoma as a distinct variant of lipoma that can occur in both the major and minor salivary glands. The histogenesis of these lesions is unclear, and surgical resection is an appropriate treatment.
PE-302 - SIALOLITHIASIS IN BUCCAL MUCOSA OF ELDERLY PATIENT: CASE REPORT. ALISSON CARDOSO ALVES, MILENA RAYANE DE ANDRADE TEIXEIRA, JOSÉ CADMO WANDERLEY FILHO, SÉRGIO HENRIQUE GONÇALVES DE CARVALHO, CASSIANO FRANSCISCO WEEGE NONAKA, GUSTAVO PINA GODOY, POLLIANNA MUNIZ ALVES. UEPB. Sialoliths are calcareous concretions causing obstruction of a salivary gland or its excretory duct, mainly in the submandibular gland. Only 2% occur in minor salivary glands. Man, 80, complained of a small asymptomatic nodular lesion on the left buccal mucosa. Palpation revealed the presence of small endophytic nodule. The preliminary diagnosis was traumatic neuroma. Excisional biopsy was performed; the macroscopic examination showed a rounded lesion of firm consistency with calcified material inside. Microscopically there was a fragment calcified in concentric laminations contained within an enlarged salivary duct. Adjacent to this there was a salivary parenchyma with chronic sialadenitis. The definitive diagnosis was sialolithiasis. The patient has been followed up for 6 months with no recurrence. Dentists should have accurate knowledge of sialoliths to make an accurate diagnosis and provide appropriate therapy.
PE-303 - SIALOLITHIASIS IN THE SUBMANDIBULAR GLAND PRESENTING AS AN INFLAMMATORY FIBROUS HYPERPLASIA AND SECONDARY INFECTION IN THE FLOOR OF THE MOUTH: CASE REPORT. MARCOS ANTONIO NUNES COSTA SILAMI, DANIELLE RESENDE CAMISASCA, MARCIA DUARTE SOTHER, REBECA DE SOUZA AZEVEDO, SILVIA PAULA DE OLIVEIRA. ODONTOCLÍNICA CENTRAL DO EXÉRCITO (OCEX).
OOOO February 2014 Sialolithiasis is the development of mineralized structures within excretory salivary ducts or glandular parenchyma. A large sialolith of the left submandibular gland is reported. Man, 55, presented an exophytic, irregular, firm, normochromic, and painful nodule in the left posterior region of the floor of the mouth. The lesion excreted pus and was present for 3 months. He gave a history of calcification in the submandibular gland over 10 years. Panoramic radiographs revealed coalescing radiopacities; submandibular gland ultrasonography showed a 0.2-cm calcification. Soft tissue biopsy results were compatible with inflammatory fibrous hyperplasia. The patient was given antibiotics and anti-inflammatory agents. At follow-up the lesion was smaller, and a hard yellowish nodule was observed. Surgical exploration removed this calcification. A second panoramic radiograph revealed a small calcification, but the pain and pus excretion had ceased. The definitive diagnosis was sialolithiasis. This case shows sialolithiasis with an unusual clinical presentation and satisfactory outcome.
PE-304 - SIMPLE BONE CYST OF BILATERAL OCCURRENCE: CASE REPORT. JAMILE DE OLIVEIRA SÁ, ADRIANO FREITAS DE ASSIS, JANDSON MICHEL DOS SANTOS, CAMILA SANE VIENA, PATRÍCIA DE CASTRO VEIGA, ALENA RIBEIRO ALVES PEIXOTO MEDRADO, SÍLVIA REGINA DE ALMEIDA REIS. FACULDADE BAHIANA DE MEDICINA E SAÚDE PÚBLICA. Simple bone cyst is an intraosseus, non-neoplastic lesion that affects especially the jaw. Higher incidences are reported for the body and symphysis. The etiology remains controversial. This report presents a clinical case of bilateral lesions discovered on routine radiographic examination. Mulatto man, 19, had undergone clinical examinations and imaging for bilateral lesions, then was referred for evaluation by an Oral and Maxillofacial Surgery service. Surgical aspiration from both lesions showed clear liquid and the remaining cavity consisted of soft tissue. Pathological examination of both lesions revealed a narrow band of loose connective tissue with no epithelial lining. The diagnosis was simple bone cyst of multiple occurrence. The absence of root resorption, the lamina dura, and the presence of involved teeth whose pulp remained vital are referenced in the literature. It is rare to see these cysts in more than one anatomical site.
PE-305 - CROUZON’S SYNDROME: CASE REPORT. CAROLINE FARIAS LEMOS, BERNANDO FERREIRA BRASILEIRO, LUIZ CARLOS FERREIRA DA SILVA, NAYANE CHAGAS CARVALHO, MARTA RABELLO PIVA. UNIVERSIDADE FEDERAL DE SERGIPE. Crouzon’s syndrome (CS) is a rare condition that affects the development of the craniofacial skeleton. Although uncommon, CS has a 50% risk of transmission when one parent has the disease. Man, 19, was diagnosed with CS at age 12 but refused surgical treatment. He returned complaining of tooth pain and difficulty opening the mouth. Physical examination showed exophthalmos, flattening of the occipital protuberance of the frontal and occipital areas, prognathism, and deviated septum. Clinical examination revealed intraoral malocclusion, narrowing of the hard palate, limited mouth opening, and several carious lesions. Treatment requires a multidisciplinary
PE-302 - SIALOLITHIASIS IN BUCCAL MUCOSA OF ELDERLY PATIENT: CASE REPORT. ALISSON CARDOSO ALVES, MILENA RAYANE DE ANDRADE TEIXEIRA, JOSÉ CADMO WANDERLEY FILHO, SÉRGIO HENRIQUE GONÇALVES DE CARVALHO, CASSIANO FRANSCISCO WEEGE NONAKA, GUSTAVO PINA GODOY, POLLIANNA MUNIZ ALVES. UEPB. Sialoliths are calcareous concretions causing obstruction of a salivary gland or its excretory duct, mainly in the submandibular gland. Only 2% occur in minor salivary glands. Man, 80, complained of a small asymptomatic nodular lesion on the left buccal mucosa. Palpation revealed the presence of small endophytic nodule. The preliminary diagnosis was traumatic neuroma. Excisional biopsy was performed; the macroscopic examination showed a rounded lesion of firm consistency with calcified material inside. Microscopically there was a fragment calcified in concentric laminations contained within an enlarged salivary duct. Adjacent to this there was a salivary parenchyma with chronic sialadenitis. The definitive diagnosis was sialolithiasis. The patient has been followed up for 6 months with no recurrence. Dentists should have accurate knowledge of sialoliths to make an accurate diagnosis and provide appropriate therapy.
PE-303 - SIALOLITHIASIS IN THE SUBMANDIBULAR GLAND PRESENTING AS AN INFLAMMATORY FIBROUS HYPERPLASIA AND SECONDARY INFECTION IN THE FLOOR OF THE MOUTH: CASE REPORT. MARCOS ANTONIO NUNES COSTA SILAMI, DANIELLE RESENDE CAMISASCA, MARCIA DUARTE SOTHER, REBECA DE SOUZA AZEVEDO, SILVIA PAULA DE OLIVEIRA. ODONTOCLÍNICA CENTRAL DO EXÉRCITO (OCEX).
OOOO February 2014 Sialolithiasis is the development of mineralized structures within excretory salivary ducts or glandular parenchyma. A large sialolith of the left submandibular gland is reported. Man, 55, presented an exophytic, irregular, firm, normochromic, and painful nodule in the left posterior region of the floor of the mouth. The lesion excreted pus and was present for 3 months. He gave a history of calcification in the submandibular gland over 10 years. Panoramic radiographs revealed coalescing radiopacities; submandibular gland ultrasonography showed a 0.2-cm calcification. Soft tissue biopsy results were compatible with inflammatory fibrous hyperplasia. The patient was given antibiotics and anti-inflammatory agents. At follow-up the lesion was smaller, and a hard yellowish nodule was observed. Surgical exploration removed this calcification. A second panoramic radiograph revealed a small calcification, but the pain and pus excretion had ceased. The definitive diagnosis was sialolithiasis. This case shows sialolithiasis with an unusual clinical presentation and satisfactory outcome.
PE-304 - SIMPLE BONE CYST OF BILATERAL OCCURRENCE: CASE REPORT. JAMILE DE OLIVEIRA SÁ, ADRIANO FREITAS DE ASSIS, JANDSON MICHEL DOS SANTOS, CAMILA SANE VIENA, PATRÍCIA DE CASTRO VEIGA, ALENA RIBEIRO ALVES PEIXOTO MEDRADO, SÍLVIA REGINA DE ALMEIDA REIS. FACULDADE BAHIANA DE MEDICINA E SAÚDE PÚBLICA. Simple bone cyst is an intraosseus, non-neoplastic lesion that affects especially the jaw. Higher incidences are reported for the body and symphysis. The etiology remains controversial. This report presents a clinical case of bilateral lesions discovered on routine radiographic examination. Mulatto man, 19, had undergone clinical examinations and imaging for bilateral lesions, then was referred for evaluation by an Oral and Maxillofacial Surgery service. Surgical aspiration from both lesions showed clear liquid and the remaining cavity consisted of soft tissue. Pathological examination of both lesions revealed a narrow band of loose connective tissue with no epithelial lining. The diagnosis was simple bone cyst of multiple occurrence. The absence of root resorption, the lamina dura, and the presence of involved teeth whose pulp remained vital are referenced in the literature. It is rare to see these cysts in more than one anatomical site.
PE-305 - CROUZON’S SYNDROME: CASE REPORT. CAROLINE FARIAS LEMOS, BERNANDO FERREIRA BRASILEIRO, LUIZ CARLOS FERREIRA DA SILVA, NAYANE CHAGAS CARVALHO, MARTA RABELLO PIVA. UNIVERSIDADE FEDERAL DE SERGIPE. Crouzon’s syndrome (CS) is a rare condition that affects the development of the craniofacial skeleton. Although uncommon, CS has a 50% risk of transmission when one parent has the disease. Man, 19, was diagnosed with CS at age 12 but refused surgical treatment. He returned complaining of tooth pain and difficulty opening the mouth. Physical examination showed exophthalmos, flattening of the occipital protuberance of the frontal and occipital areas, prognathism, and deviated septum. Clinical examination revealed intraoral malocclusion, narrowing of the hard palate, limited mouth opening, and several carious lesions. Treatment requires a multidisciplinary