Unusual occurrence of primary malignant melanoma of the nasal cavity

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منابع مشابه

[Primary malignant melanoma of the nasal cavity].

This refers to a case of a malign melanoma in the nasal cavity. Melanomas of the mucosal origin differed from the melanomas cutaneous in that size of the primary lesion did not influence prognosis. Regional lymph node metastases are rare and did not influence prognosis. Local recurrence at the primary site is frequent. Surgical treatment offers long-term cure to only a limited number of patients.

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INTRODUCTION Malignant melanoma rarely develops in the mucous membranes. Statistical data indicate that rhinosinusal mucosal melanoma was reported in less than 1% of all melanic tumors and in 2-8% of all cancers developed in the nasal fossae and sinuses. Due to reduce and non-specific symptoms and a high degree of invasion away, patients come for a medical expertise in advanced stages of the di...

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oral malignant melanoma (omm) accounts for 5% of all oral malignancies. it is a rare aggressive neoplasm usually found on the hard palate and gingiva. the etiology is unknown, but tobacco and chronic irritation are suggested as probable causative factors. over 30% of the cases have been reported to arise from pre-existing pigmented lesions. a biopsy is required to establish the diagnosis and th...

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Primary malignant melanoma of the sinonasal cavity: MR imaging evaluation.

To evaluate the magnetic resonance (MR) imaging characteristics of primary malignant melanoma of the sinonasal cavity, T1- and T2-weighted MR images of 12 patients with primary sinonasal melanoma were retrospectively reviewed. Gadolinium-enhanced imaging was performed in seven cases. The MR images were compared with histopathologic results. There were seven melanotic melanomas and five amelanot...

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Primary duodenal malignant melanoma: A case report

Background: Melanoma is a neoplasm derived commonly from melanocytic cells of skin. Although coetaneous presentation of malignant melanoma is easily recognizable, the presentation of melanoma in other organs is so confusing. In particular, when it metastasizes to other organs, many bizarre figures and unusual organs may be involved. In this report, we present a case of primary duodenal malignan...

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ژورنال

عنوان ژورنال: Journal of Clinical Sciences

سال: 2016

ISSN: 2408-7408

DOI: 10.4103/2408-7408.179684