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LATERAL PERIODONTAL CYST: A CASE REPORT
ABSTRACTS
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LATERAL PERIODONTAL CYST: A CASE REPORT. BARBARA GABRIELLE BOMFIM DA MOTA, ALINE FERNANDA CRUZ, ALICE SOUZA VILLAR CASSIMIRO FONSECA, RENATA GONCALVES ¸ REZENDE, JULIANA PERIGOLO MARCIAL, FELIPE PAIVA FONSECA and, RICARDO SANTIAGO GOMEZ The lateral periodontal cyst (LPC) is an odontogenic lesion that develops along the lateral radicular surface of a tooth. A 59year-old male patient with a history of liver transplantation due to cirrhosis presented with a radiolucent area with well-defined borders measuring approximately 4 mm in the region corresponding to tooth 13, which was absent. Tooth 12 was endodontically treated and tooth 14 presented pulp vitality. Considering a hypothesis of residual cyst, LPC, or odontogenic keratocyst, and due to the clinical and radiographic aspects of the lesion, an excisional biopsy was performed. Laboratory tests of the patient did not contraindicate the procedure. The anatomopathologic exam showed a cystic capsule aligned by stratified, squamous and nonkeratinized epithelium containing many clear cells, which was compatible with LPC. Therefore, although it is a rare entity, LPC should be included in the differential diagnosis of other lesions that may present with similar characteristics.
MAJOR APHTHOUS ULCER IN A PATIENT WITH ACQUIRED IMMUNE DEFICIENCY SYNDROME. ESTEBAN ALEXIS ARROYO, MARCELA JULIETA RIQUELME, NATALIA GONZALEZ € FONSECA, DANIELA MUNZENMAYER CIFUENTES, CAMILA DE OLIVEIRA BARBEIRO, DARCY FERNANDES and, ANDREIA BUFALINO Oral manifestations in acquired immune deficiency syndrome (AIDS) occur in a large proportion of patients. A 28-year-old man with AIDS was referred from medicine service due to multiple oral lesions of unknown clinical progress. The patient presented with lymphopenia (a CD4+ T-cell count of 11 cell/mL) and noncompliance with antiretroviral treatment (viral load 59,100 copies/ mL). An extensive ulcer of 30 £ 14 mm with a marked erythematous halo on the left buccal mucosa was observed. An incisional biopsy and a culture were performed to evaluate for the presence of infectious diseases. Definitive diagnosis was major aphthous ulcer in an AIDS patient. Oral hygiene was carried out together with highly active antiretroviral treatment. Complete healing was observed within 6 weeks’ follow-up, improvement of the CD4+ count, a decrease in the viral load, and absence of recurrence signs. It is important to make a differential diagnosis of oral lesions in patients with AIDS to establish the proper treatment.
AGGRESSIVE PRIMITIVE TUMOR IN A PEDIATRIC PATIENT WITH LETHAL EVOLUTION. MILENA GOMES MELO LEITE, HENDRI KEROLE SILVA DE OLIVEIRA, ANDRE LUIZ TANNUS DUTRA, NAELKA SARMENTO, LIONEY NOBRE CABRAL and, TIAGO NOVAES PINHEIRO Primitive tumors are considered rare, malignant, small and round-cell tumors that represent a disease of childhood and categorized into the Ewing family of tumors due its similarities. Herein we report a case of primitive tumor in a pediatric patient with lethal evolution. A 1-year-old black male patient was
OOOO January 2020 showing an expansive lesion in the left hemimandible, 8 cm in diameter, exhibiting superficial telangiectasia, crackling consistency, similar to a mucous membrane. The radiographic findings revealed irregular lytic radiolucency. An incisional biopsy was performed and the histopathologic report suggested a mucoepidermoid carcinoma. A histochemical and immunohistochemical panel was performed with the following markers: PAS-stain (+), DAK-p63 (+), AE1 ⁄AE3 (+), S-100 (+), and calponin (focaly +). The patient died 2 months after the biopsy procedure, before the immunohistochemical report was finished. We discuss the aggressive nature of such a rare tumor.
PILOMATRICOMA IN THE PREAURICULAR REGION: A CASE REPORT. LUIZA DUARTE LINHARES, ADRIANA CAROLI-BOTTINO, CATARINA LUZIA DOS SANTOS, JOSE MONTEIRO, ALEXANDRE MOREIRA DE MORAES and, JACKELINE NOGUEIRA DE PAULA BARROS Pilomatricomas are rare lesions, corresponding to 1% of benign subcutaneous skin tumors, and demonstrating a predilection for the head and neck in children. Clinically, they consist of firm masses that are well delimited, painless, and slowly growing. The mass shows adherence to the overlying skin, which can appear normal, in addition to changes in color, ulceration, and mobility. The present work describes the case of pilomatricoma in a 37-year-old man with a stony hard lesion in the right preauricular area. Punch aspiration showed an absence of material, followed by an excisional biopsy that revealed a 2.7-cm stony hard nodule. After decalcification, microscopic evaluation demonstrated islands of epithelial cells, with basaloid cells in the periphery and ghost cells in the center, with calcified foci and frequent ossification. The patient currently shows no signs of recurrence.
CLINICAL, HISTOCHEMICAL, AND IMMUNOHISTOCHEMICAL ANALYSIS OF ORAL INTRAVASCULAR PAPILLARY ENDOTHE LIAL HYPERPLASIA. ALVARO CAVALHEIRO SOARES, RUTH TRAMONTANI RAMOS, GERALDO OLIVEIRA SILVA JUNIOR, MARILIA HEFFER CANTISANO and, ^ PIRES FABIO RAMOA The intravascular papillary endothelial hyperplasia (IPEH) is a benign lesion with a vascular origin characterized by the proliferation of endothelial cells that rarely occurs in the oral cavity. The present study aims to describe the clinical, histopathologic, and immunohistochemical characteristics of this lesion. A white, female 43-year-old patient attended the stomatology service complaining of a swelling in lower lip of 2 months’ duration. Physical examination revealed a nodular lesion in the lower lip approximately 0.6 cm in size, sessile, with a bluish coloration, floating, soft to palpation, well delimited, and asymptomatic. An excisional biopsy was performed and after the histopathologic and immunohistochemical analysis (CD34, SMA, HHF35, Ki-67), the diagnosis of IPEH was obtained. No other treatment was given. The patient is under quarterly observation at the service, presenting no clinical evidence of recurrence.
PLEOMORPHIC LEIOMYOSARCOMA IN THE ORAL CAVITY. MARIA CASSIA FERREIRA, ANDREA LOPEZ SOTO, KARINE
e52
LATERAL PERIODONTAL CYST: A CASE REPORT. BARBARA GABRIELLE BOMFIM DA MOTA, ALINE FERNANDA CRUZ, ALICE SOUZA VILLAR CASSIMIRO FONSECA, RENATA GONCALVES ¸ REZENDE, JULIANA PERIGOLO MARCIAL, FELIPE PAIVA FONSECA and, RICARDO SANTIAGO GOMEZ The lateral periodontal cyst (LPC) is an odontogenic lesion that develops along the lateral radicular surface of a tooth. A 59year-old male patient with a history of liver transplantation due to cirrhosis presented with a radiolucent area with well-defined borders measuring approximately 4 mm in the region corresponding to tooth 13, which was absent. Tooth 12 was endodontically treated and tooth 14 presented pulp vitality. Considering a hypothesis of residual cyst, LPC, or odontogenic keratocyst, and due to the clinical and radiographic aspects of the lesion, an excisional biopsy was performed. Laboratory tests of the patient did not contraindicate the procedure. The anatomopathologic exam showed a cystic capsule aligned by stratified, squamous and nonkeratinized epithelium containing many clear cells, which was compatible with LPC. Therefore, although it is a rare entity, LPC should be included in the differential diagnosis of other lesions that may present with similar characteristics.
MAJOR APHTHOUS ULCER IN A PATIENT WITH ACQUIRED IMMUNE DEFICIENCY SYNDROME. ESTEBAN ALEXIS ARROYO, MARCELA JULIETA RIQUELME, NATALIA GONZALEZ € FONSECA, DANIELA MUNZENMAYER CIFUENTES, CAMILA DE OLIVEIRA BARBEIRO, DARCY FERNANDES and, ANDREIA BUFALINO Oral manifestations in acquired immune deficiency syndrome (AIDS) occur in a large proportion of patients. A 28-year-old man with AIDS was referred from medicine service due to multiple oral lesions of unknown clinical progress. The patient presented with lymphopenia (a CD4+ T-cell count of 11 cell/mL) and noncompliance with antiretroviral treatment (viral load 59,100 copies/ mL). An extensive ulcer of 30 £ 14 mm with a marked erythematous halo on the left buccal mucosa was observed. An incisional biopsy and a culture were performed to evaluate for the presence of infectious diseases. Definitive diagnosis was major aphthous ulcer in an AIDS patient. Oral hygiene was carried out together with highly active antiretroviral treatment. Complete healing was observed within 6 weeks’ follow-up, improvement of the CD4+ count, a decrease in the viral load, and absence of recurrence signs. It is important to make a differential diagnosis of oral lesions in patients with AIDS to establish the proper treatment.
AGGRESSIVE PRIMITIVE TUMOR IN A PEDIATRIC PATIENT WITH LETHAL EVOLUTION. MILENA GOMES MELO LEITE, HENDRI KEROLE SILVA DE OLIVEIRA, ANDRE LUIZ TANNUS DUTRA, NAELKA SARMENTO, LIONEY NOBRE CABRAL and, TIAGO NOVAES PINHEIRO Primitive tumors are considered rare, malignant, small and round-cell tumors that represent a disease of childhood and categorized into the Ewing family of tumors due its similarities. Herein we report a case of primitive tumor in a pediatric patient with lethal evolution. A 1-year-old black male patient was
OOOO January 2020 showing an expansive lesion in the left hemimandible, 8 cm in diameter, exhibiting superficial telangiectasia, crackling consistency, similar to a mucous membrane. The radiographic findings revealed irregular lytic radiolucency. An incisional biopsy was performed and the histopathologic report suggested a mucoepidermoid carcinoma. A histochemical and immunohistochemical panel was performed with the following markers: PAS-stain (+), DAK-p63 (+), AE1 ⁄AE3 (+), S-100 (+), and calponin (focaly +). The patient died 2 months after the biopsy procedure, before the immunohistochemical report was finished. We discuss the aggressive nature of such a rare tumor.
PILOMATRICOMA IN THE PREAURICULAR REGION: A CASE REPORT. LUIZA DUARTE LINHARES, ADRIANA CAROLI-BOTTINO, CATARINA LUZIA DOS SANTOS, JOSE MONTEIRO, ALEXANDRE MOREIRA DE MORAES and, JACKELINE NOGUEIRA DE PAULA BARROS Pilomatricomas are rare lesions, corresponding to 1% of benign subcutaneous skin tumors, and demonstrating a predilection for the head and neck in children. Clinically, they consist of firm masses that are well delimited, painless, and slowly growing. The mass shows adherence to the overlying skin, which can appear normal, in addition to changes in color, ulceration, and mobility. The present work describes the case of pilomatricoma in a 37-year-old man with a stony hard lesion in the right preauricular area. Punch aspiration showed an absence of material, followed by an excisional biopsy that revealed a 2.7-cm stony hard nodule. After decalcification, microscopic evaluation demonstrated islands of epithelial cells, with basaloid cells in the periphery and ghost cells in the center, with calcified foci and frequent ossification. The patient currently shows no signs of recurrence.
CLINICAL, HISTOCHEMICAL, AND IMMUNOHISTOCHEMICAL ANALYSIS OF ORAL INTRAVASCULAR PAPILLARY ENDOTHE LIAL HYPERPLASIA. ALVARO CAVALHEIRO SOARES, RUTH TRAMONTANI RAMOS, GERALDO OLIVEIRA SILVA JUNIOR, MARILIA HEFFER CANTISANO and, ^ PIRES FABIO RAMOA The intravascular papillary endothelial hyperplasia (IPEH) is a benign lesion with a vascular origin characterized by the proliferation of endothelial cells that rarely occurs in the oral cavity. The present study aims to describe the clinical, histopathologic, and immunohistochemical characteristics of this lesion. A white, female 43-year-old patient attended the stomatology service complaining of a swelling in lower lip of 2 months’ duration. Physical examination revealed a nodular lesion in the lower lip approximately 0.6 cm in size, sessile, with a bluish coloration, floating, soft to palpation, well delimited, and asymptomatic. An excisional biopsy was performed and after the histopathologic and immunohistochemical analysis (CD34, SMA, HHF35, Ki-67), the diagnosis of IPEH was obtained. No other treatment was given. The patient is under quarterly observation at the service, presenting no clinical evidence of recurrence.
PLEOMORPHIC LEIOMYOSARCOMA IN THE ORAL CAVITY. MARIA CASSIA FERREIRA, ANDREA LOPEZ SOTO, KARINE