RESUMO
Carotid paraganglioma (CP) is a relatively rare neoplasm, most commonly located in the head and neck. It is a slow-growing tumor and there has been some debate on the optimal techniques of excision. We report herein the case of a 35-year-old woman who presented with an asymptomatic mass in the right side of the neck. The diagnosis of CP was confirmed by computed tomography and carotid angiography. This tumor was successfully removed surgically without complication. Throughout the description of this case, we analyze the clinical, radiological, pathological and therapeutic particularities of this entity.
Assuntos
Tumor do Corpo Carotídeo/diagnóstico por imagem , Tumor do Corpo Carotídeo/cirurgia , Paraganglioma/diagnóstico por imagem , Paraganglioma/cirurgia , Adulto , Tumor do Corpo Carotídeo/patologia , Divisão Celular , Citoplasma/patologia , Feminino , Humanos , Paraganglioma/patologia , Tomografia Computadorizada por Raios X , Resultado do TratamentoRESUMO
OBJECTIVES: Epithelial-myoepithelial carcinoma is a rare tumor of the salivary glands with an incidence of less than 1%. Most cases arise in the parotid gland. Extraoral location is exceptional. The purpose of this study was to describe a case with nasal location, which is exceptionally reported in the literature. MATERIALS AND METHODS: We report a case of epithelial-myoepithelial carcinoma arising in the nasal cavity of a 54-year-old woman. RESULTS: The woman presented with right recurrent epistaxis and on nasal endoscopic examination was found to have a polypoid tumor in the right nasal cavity. The CT-scan demonstrated a soft tissue mass without extension to the rhinopharynx or bony destruction. Histopathologic examination revealed the tumor to consist of a mixture of a solid, tubular, and trabecular structures with a double-layered arrangement of inner eosinophilic cells and outer clear cells. Dual differentiation toward myoepithelial and epithelial cells was confirmed immunohistochemically. CONCLUSION: The occurrence of epithelial-myoepithelial carcinoma in the nasal cavity is possible. In published cases, no recurrence or metastasis has been reported in this location.
Assuntos
Carcinoma/patologia , Carcinoma/cirurgia , Mioepitelioma/patologia , Mioepitelioma/cirurgia , Cavidade Nasal/patologia , Cavidade Nasal/cirurgia , Neoplasias Nasais/patologia , Neoplasias Nasais/cirurgia , Feminino , Humanos , Pessoa de Meia-IdadeRESUMO
IgG4-related diseases are a recently recognized systemic syndrome characterized by mass-forming lesions, in mainly exocrine tissue, that consist of lymphoplasmacytic infiltrates and sclerosis, which may mimic malignant neoplasm due to clinical and imaging features. We report an unusual case of a 62-year-old woman who presented with a left orbital mass, which histologically revealed to be an IgG4-sclerosing disease.