adults involve the skin of the neck, thorax, shoulders, and extremi- ties. Mucosal involvement is rare; a few cases were reported in literature, characterized by erythematous macula or angiomatous- appearing plaque. Microscopic analysis revealed a nodular lesion covered by parakeratinized stratified epithelium and hypercellularized areas with blood capillaries and a large number of endothelial cells in the connective tissue. This study reported the case of a tufted angioma in the lower labial mucosa of a 7-month pregnant patient, with a clinical diagnosis of pyogenic granu- loma. Moreover, a literature review providing a comparison of the differential diagnosis and management of these lesions is provided. NK/T CELL LYMPHOMA (EXTRANODAL NASAL TYPE): A CASE REPORT. PABLYANNE TEREZA LOUZADA GUEDES, WILBÊNIA PONTES LEMOS, ADRIANA SOUZA DE JESUS, AMANDA DE OLIVEIRA MACEDO, DOUGLAS MAGNO GUIMARÃES, FLÁVIA SIROTHEAU CORRÊA PONTES, HÉLDER ANTÔNIO REBELO PONTES. NK/T cell lymphomas are rare and usually aggressive. This study aimed to report the case of a 57-year-old man with painful symptomatology and with deep ulcerations in the soft palate at the midline region, with areas of osteonecrosis, and oronasal fistula on an intraoral examination. After an incisional biopsy, the histo- pathological analysis showed a rich proliferation of small and large rounded cells that exhibited irregular, hyperchromatic nuclei of varied sizes. The neoplastic cells exhibited poorly stained cyto- plasm. Mononuclear inflammatory infiltrate and hemorrhage areas completed the histopathology description. After immunohisto- chemical reactions that were positive for LCA, CD3, CD56, EBER, and CD20, the diagnosis of NK/T cell lymphoma was defined. The patient was referred to the oncologist, underwent chemotherapeu- tic and radiotherapeutic treatment, and is under observation. KAPOSI SARCOMA IN THE UVULA: A CASE REPORT. ANDERSON IDELFONSO BATISTA FERNANDES, RENATA GUALBERTO DA CUNHA, MOYARA MENDONÇA LIMA DE FARIAS, TATIANA NAYARA LIBÓRIO-KIMURA, HIGINO FELIPE FIGUEIREDO, JECONIAS CÂMARA, LUCIANA BOTINELLY M. FUJIMOTO. Kaposi sarcoma is an uncommon malignant vascular neoplasm occurring predominantly in adult males and is more frequently located in the lower extremities of the skin. Oral lesions are rare, most fre- quently occurring on the palate, followed by the gingiva and the tongue. A 27-year-old man attended the service, presenting with a vegeta- tive lesion in the uvula. The patient was seropositive for HIV.An incisional biopsy was performed and the specimen was submitted for histopathological analysis, showing vascular proliferation consti- tuted by spindle cells, interspersed by several hemorrhagic foci. The diagnosis was compatible with Kaposi sarcoma. The patient was lost to follow-up. Kaposi sarcoma in the uvula is extremely rare, and this clinical presentation is not characteristic. GRANULAR CELL TUMOR OF THE TONGUE: REPORT OF AN UNCOMMON NEOPLASM. ROBECI ALVES MACÊDO-FILHO, ROBÉRIA LUCIA DE QUEIROZ FIGUEIREDO, DALIANA QUEIROGA DE CASTRO GOMES, ÉRICKA JANINE DANTAS DA SILVEIRA, CASSIANO FRANCISCO WEEGE NONAKA, POLLIANNA MUNIZ ALVES, MARIA LUIZA DINIZ DE SOUSA LOPES. Granular cell tumor (GCT) is an uncommon benign soft tissue neoplasm usually located in the oral cavity, especially in the tongue. This report described the case of a 51-year-old woman complain- ing of a white lump in the tongue. An intraoral examination revealed a yellowish nodule in the tongue’s posterolateral border, which was sessile and firm on palpation, suggesting a diagnostic hypothesis of lymphoepithelial cyst. The lesion was surgically excised. A mi- croscopic examination revealed a non-encapsulated proliferation of polygonal cells with abundant eosinophilic, granular cyto- plasm, and vesicular nuclei. Solid sheets and islands of neoplastic cells were observed, occasionally in close relationship with the skel- etal muscle. The histopathological findings led to final diagnosis of GCT. The immunohistochemistry revealed a strong S-100 posi- tivity in the tumor cells, reinforcing the suggested GCT neural origin. The postoperative course was uneventful. Although rare, GCT should be included in the clinical differential diagnosis of tongue soft tissue masses. LYMPHANGIOMA OF THE LOWER LIP OF A 68-YEAR- OLD WOMAN: A CASE REPORT. ANDERSON IDELFONSO BATISTA FERNANDES, RENATA GUALBERTO CUNHA, MOYARA MENDONÇA LIMA DE FARIAS, JÉSSICA BARROSO BARBOSA, MARCEL K. L. KIMURA, JECONIAS CÂMARA, RICARDO ALEXANDRE G. GUIMARÃES. Lymphangiomas, benign hamartomatous lymphatic vessel tumors, present clinically as floating soft masses, with a marked predilection in the oral cavity for the tongue anterior region. A 68- year-old woman sought dental care, complaining of a lesion in the lower lip for 6 years, with a history of trauma. Clinical examina- tion revealed a reddish/purplish, deep, sessile, soft, endophytic, and bleeding lesion located in the vermilion of the lower lip, with cir- cumscribed and reddish areas in the center. An incisional biopsy was performed in view of a hypothesis of hemangioma and a mi- croscopic examination showed numerous vascular spaces coated by a single and thin layer of endothelial cells through fibrous con- nective tissue and hemosiderin pigments. On the surface, stratified squamous epithelium exhibited areas of atrophy, ulceration, and a thick layer of orthokeratin. The diagnosis was compatible with lymphangioma. The patient is under follow-up for 4 months and shows no signs of relapse. ORAL MELANOACANTHOMA: A CASE REPORT OF DIFFUSE ORAL PIGMENTATION. ROBECI ALVES MACÊDO-FILHO, JOZINETE VIEIRA PEREIRA, DALIANA QUEIROGA DE CASTRO GOMES, ROBÉRIA LUCIA DE QUEIROZ FIGUEIREDO, BÁRBARA VANESSA DE BRITO MONTEIRO, CASSIANO FRANCISCO WEEGE NONAKA, POLLIANNA MUNIZ ALVES. Oral melanoacanthoma (OM) is an uncommon, acquired benign pigmented lesion. Normally, OM exhibits diffuse pigmentation in the oral cavity, affecting black women in the fourth decade of their life. A 53 years-old white woman, who has been a smoker for ap- proximately 1 year, presented in an intraoral examination, brownish macules in the lower lip, gingiva, and buccal mucosa. The diag- nostic hypotheses were melanin pigmentation and Addison’s disease. Laboratory exams showed normal levels of ACTH and cortisol. Incisional biopsy in a region of the gingiva was performed and a microscopic exam revealed parakeratinized stratified squamous ep- ithelium, exhibiting acanthosis and spongiosis. Numerous dendritic cells, compatible with melanocytes, distributed in the granular, OOOO ABSTRACTS Volume 126, Number 3 Abstracts e95