Myoepithelioma is an uncommon benign tumor that most likely occurs in the salivary gland. Extra-salivary myoepithelioma are sporadic and rare, especially the quantities occur in the sinonasal cavity are fewer in related literature reported. In this paper, we present a rare case of benign myoepithelioma that occurred in the nasal cavity, and the related process of pathogenesis, diagnosis, treatment and prognosis are discussed.
Humans ; Myoepithelioma ; pathology ; Nasal Cavity ; pathology

Adipocytes ; pathology ; Angiomyoma ; pathology ; Humans ; Nasal Cavity ; Nose Neoplasms ; pathology

Carcinoma, Neuroendocrine ; pathology ; Humans ; Nasal Cavity ; pathology ; Nasopharynx ; pathology

A button battery inserted in the nose of children is an unusual foreign body which is capable of causing extensive tissue damage, resulting from electrical and chemical burns. We report a case of button battery in the nose of a 4-year-old boy presenting with unilateral nasal discharge, and necrosis in the septum and turbinate of the right nasal cavity. Mercury level in concentrated urine was within normal limit. Microscopic examination disclosed extensive liquefaction necrosis with calcification and fibrosis. Numerous dark brown to black granules were noted in the elastic and collagen fibers and interstitium. Dark-field examination of the section revealed brilliantly refractile granules. Polarized microscopy failed to show the granules. Most brown pigments reacted to prussian blue. Tissue mercury analysis yielded a mercury content of 8.01 ppm. We report this case to emphasize the hazards of button battery impaction and to draw attention to the significance of the problem through histopathologic examination.
Child, Preschool ; Human ; Male ; Nasal Cavity/pathology* ; Nasal Cavity/immunology ; Power Sources/adverse effects*

Humans ; Nasal Cavity ; pathology ; Nasal Obstruction ; diagnosis ; Nasal Polyps ; diagnosis ; Turbinates

Child ; Fibroma ; Humans ; Male ; Nasal Cavity ; pathology ; Nose Neoplasms

Supernumerary teeth, which is described as teeth or tooth substance that develops in excess of deciduous and permanent teeth, most commonly involve the anterior maxilla. Mesiodens are one type of supernumerary teeth that develops in paramedian space of premaxilla. Sometimes mesiodens can be inverted with its crown facing the nasal cavity. Because of its own pathology and possible disruption of neighboring normal teeth, supernumerary teeth should be removed regardless of its eruption. We experienced two cases of mesiodens detected in the nasal floor and so report these cases with a review of literature.
Crowns ; Maxilla ; Nasal Cavity* ; Pathology ; Tooth ; Tooth, Supernumerary

Bone Neoplasms ; Chondrosarcoma ; Female ; Humans ; Middle Aged ; Nasal Cavity ; pathology ; Nasal Septum ; pathology

nasal cavity. Here, we report the case of an EMC arising from the inferior turbinate, one of the most uncommon sites. A 60-year-old female patient presented with left nasal obstruction for several months, and PNS CT showed an about 4×1.4-cm-sized heterogeneously enhancing polypoid mass originating from the inferior turbinate of the left nasal cavity. After surgical treatment, the patient was diagnosed with EMC based on pathologic examinations including histopathological and immunohistochemical tests. We report a case of a patient with EMC in the inferior turbinate who was observed over 18 months without radiation therapy after successful wide excision.]]>
Female ; Humans ; Middle Aged ; Nasal Cavity ; Nasal Obstruction ; Parotid Gland ; Pathology ; Salivary Glands ; Turbinates

Chondroma ; pathology ; Female ; Humans ; Middle Aged ; Nasal Cavity ; pathology ; Nose Neoplasms ; pathology ; Paranasal Sinus Neoplasms ; pathology