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...

background: the presence of noncutaneous neoplasms does not seem to increase the risk of cutaneous malignant melanoma; however, it seems to be associated with the development of other hematological, brain, breast, uterine, and prostatic neoplasms. an ecological transversal study was conducted to study the geographic association between cutaneous malignant melanoma and 24 localizations of cancer...

Background: Malignant melanoma is the most aggressive form of skin cancer. In contrast to other tumors, the role of estrogen in the initiation and progression of melanoma remains unclear. The aim of this study was to evaluate estrogen receptor beta protein expression in human melanoma tissues and in the benign melanocytic lesions. Method: Twenty-one patients, 11 with cutaneous melanoma and 10 w...

amelanotic melanoma is a variant of malignant melanoma comprising 2% to 8% of all malignant melanomas. the amelanotic presentation of melanoma in the oral cavity is extremely rare and has been reported only occasionally in the literature. moreover, the lack of melanin makes these tumors difficult to diagnose than that of pigmented lesions and the prognosis tends to be poorer. herein, we report ...

Objective(s): Malignant melanoma is the most lethal type of skin cancers with unfavorable prognosis. Alpha-MSH peptide analogues have a high affinity for melanocortine-1 (MC1) receptors on melanocytes overexpressing in malignant melanoma cells. Pre-clinical studies have shown promising results for radiolabeled MSH imaging in this malignancy. The purpose of this study is to assess the diagnostic...

Zosteriform metastasis is a rare clinical distribution from spreading neoplasms of every organ to the skin. Tumors most often arise from a n internal o r hematologic malignancy. W e report a 69-year-old man, a known case of malignant melanoma of the left heel. In this case, multiple red-brown metastatic nodules appeared four months after diagnosis. Distribution of metastatic lesions resemb...

malignant melanoma of the esophagus is a rare tumor with poor prognosis. the survival of patients is generally less than one year after diagnosis. a case of primary malignant melanoma of the esophagus is presented, who after radical resection of the tumor, is in excellent health, with no evidence of disease 14 months after surgery.