Search

Fibromyxoma is an unusual collagenized variant from odontogenic myxoma neoplasm, presenting a recurrence index of 9.52%. The case report aims to describe an uncommon lesion which presents diagnostic challenges due its similarity to other lesions such as intraosseous neurofibroma and central odontogenic fibroma. An 18-year-old female patient presented a radiolucent lesion discovered on the routine panoramic radiography, which was well circumscribed and had unilocular aspect. Clinically, the patient did not report any symptoms. Then excisional biopsy was performed for histologic evaluation of the lesion, which was observed cells with fusiform or rounded pattern in an abundant fibrous dense stroma and sometimes myxoid. Immunohistochemical analysis were request and the results were S-100(-), CK19(-), SMA(-), and vimentin (+); consequently the diagnosis of odontogenic fibromyxoma was confirmed by morphologic and immunohistochemical findings. Finally, the treatment of choice was enucleation associated with curettage due to good prognosis and she is under follow-up.

The lymphoid tissue from the body plays an important role in the recognition and processing of antigens. In response to antigen-antibody reaction, lymphoid cells proliferate, increasing in number to combat the aggressor agent more effectively, resulting in hyperplasia of this tissue. A 61-year-old female patient attended a referral service in oral diagnosis because of a lesion on right jugal mucosa, fibrous consistency, smooth, painless, 1 cm in size, and lasting for 3 months. An excisional biopsy was performed, and clinical hypotheses were cyst of the salivary duct or mucocele. Histopathologic analysis revealed a well-circumscribed and encapsulated lymphoid aggregate fragment characterized by well-differentiated small lymphocyte layers and collections of reactive lymphoblasts. Macrophages were also identified by presence of phagocytic material in their cytoplasm, thus establishing the diagnosis of lymphoid hyperplasia. Currently, the patient is well undergoing preservation after 6 months.

Objective: This study aims to determine the frequency and features of odontogenic keratocyst (OKC) in children aged 0 to 14 years in an oral pathology service in Brazil. Study design: A retrospective study was performed to review cases of OKC in children diagnosed between 1986 and 2017. Clinical data were evaluated from medical records (sex, race, age, anatomic location, treatment, radiographic findings, and recurrence). Results: Ninety-seven cases of OKC were diagnosed in a 31-year period in all age groups and 10 were found in children (10.3%). Ages ranged from 2 to14 years (mean age ± standard deviation [SD], 10.5 ± 3.5), with 8 males and 2 females. The most frequent location was the anterior region of the mandible (n = 4). Patients were predominantly asymptomatic. Moreover, in 2 children, clinical findings of Gorlin-Goltz syndrome were observed. The most commonly used treatment was enucleation followed by curettage, and 2 cases recurred. Conclusion: Although uncommon in pediatric patients, OKC should be considered a differential diagnosis in cases of osteolytic lesions in gnathic bones. Thus, the periodic assessment of children by dentists and pediatricians is essential to get a correct diagnosis and early treatment to avoid greater disfigurement these patients.

Self-induced lesions or factitious ulcer of the mouth can be manifestation of unusual or aggressive oral habits or an emotional disorder. Here, we report 2 rare cases of difficult management of factitious ulcer. The first was an 18-year-old male patient who was a former alcohol, tobacco, marijuana, and cocaine user referred to the stomatology service because of lateral tongue lesion because the lesion itched and burned. The second occurred in a 10-year-old male patient who was taken to service because of a lip injury. The patients had the lesions treated but presented recurrence; biopsy specimen revealed a chronic inflammatory process. Systemic and local alterations that justified the ulcerations were investigated but were not found. Low-level laser therapy was performed for the 2 patients. The clinical follow-up, clinical history, and histopathologic aspects for the lesions were of great importance, and diagnosis was chronic wound by self-inflicted thermal injury.