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Inicio Cirugía Española (English Edition) Melanocytic peritoneal carcinomatosis due to rectal melanoma
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Vol. 100. Issue 4.
Pages 241 (April 2022)
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Melanocytic peritoneal carcinomatosis due to rectal melanoma
Carcinomatosis peritoneal melanocítica por melanoma rectal
Javier Gómez Sánchez
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Corresponding author.
, Cristina Gonzalez Callejas, Benito Mirón Pozo
Cirugía General, Hospital Clínico San Cecilio, Granada, Spain
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The patient is a 77-year-old female with rectal bleeding. During colonoscopy, an ulcerated polypoid lesion was observed 2 cm from the anal margin (Fig. 1), which the pathology study identified as melanoma infiltration. A pelvic MRI study staged the lesion as T2N2, with questionable integrity of the sphincter complex.

Fig. 1

Given the patient’s symptoms, we decided to perform laparoscopic extrasphincteric abdominoperineal resection. In the abdominal cavity, a pigmented infiltrate was observed in the area of the pelvic peritoneum, mesorectum, and mesosigma (Fig. 1), with satellite lesions that acted as peritoneal carcinomatosis. The pathological anatomy study confirmed the diagnosis of malignant melanotic melanoma.

Please cite this article as: Gómez Sánchez J, Gonzalez Callejas C, Mirón Pozo B. Carcinomatosis peritoneal melanocítica por melanoma rectal. Cir Esp. 2022;100:242.

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