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Iñaki L. Garcia JulianCorresponding author Gastroenterology Fellow, De La Salle University Medical Center
Malignant melanoma the most common malignancies associated with GI involvement. They usually manifest clinically at an advanced stage of neoplasm. Surgery is also recommended for palliative treatment of GIT metastases. A case of a 67-year-old male diagnosed with malignant melanoma for 7 months had burning epigastric pain and bloatedness. Esophagogastroduodenoscopy showed multiple flat lesions. Biopsy findings were consistent with malignant melanoma. Malignant melanoma has an early tendency to metastasize and has a high mortality rate due to its complications. In patients with malignant melanoma since Gastrointestinal involvement is now being documented as part of metastatic work up esophagogastroduodenoscopy is suggested as an important tool in the treatment and patient’s +outcome. Although metastases to the stomach is rare, it is essential to be thorough and include an upper endoscopy to rule out metastatic disease, especially in symptomatic patients.
Mohammed DarouichiCorresponding author Institute medical radiology
Summary Primary malignant melanoma arising from the parotid gland is extremely rare and only sporadic cases have been described. This entity is characterized by delayed diagnosis, poor prognosis and controversial pathogenesis. We report a case of primary malignant melanoma of the parotid gland in a 54-year-old man. The initial diagnosis, made by fine needle aspiration cytology, was malignant tumor without precision. Radical parotidectomy was performed. Diagnosis of primary melanoma of the parotid gland was confirmed by immunochemical analysis revealing positive staining for S-100, HBA-45 and Melan A. Computed Tomography and whole-body 18F-FDGPET/CT image were made to evaluate metabolic and morphologic characteristics of the primary melanoma, to identify potential systemic metastasis at early stage and to exclude primary melanoma elsewhere in the body. The clinical, pathological, immunohistochemical and the role of combined FDG PET/CT features of this lesion are discussed compared to a literature review.