Superficial esophageal squamous cell carcinoma with melanocytosis that was endoscopically difficult to differentiate from malignant melanoma

Author:

Horikawa Yoshinori12ORCID,Goda Kenichi1,Koyanagi Ryota34,Kondo Masayuki1,Abe Keiichiro1,Kanamori Akira1,Hamada Koichi25ORCID,Ishida Kazuyuki5,Irisawa Atsushi1

Affiliation:

1. Department of Gastroenterology Dokkyo Medical University Tochigi Japan

2. Department of Gastroenterology Southern‐Tohoku General Hospital Fukushima Japan

3. Department of Gastroenterology Utsunomiya Memorial Hospital Tochigi Japan

4. Department of Minimally Invasive Surgical and Medical Oncology Fukushima Medical University Fukushima Japan

5. Department of Diagnostic Pathology Dokkyo Medical University Tochigi Japan

Abstract

AbstractEsophageal squamous cell carcinoma (SCC) with dark spots caused by melanocytosis is very rare. A reddish and flat lesion, 4 cm in length and covering over two‐thirds of the circumference, was found in the midthoracic esophagus of a 66‐year‐old male. Multiple brown and black spots are observed in the lesion. Superficial SCC with melanocytosis or malignant melanoma was also suspected. Endoscopic submucosal dissection was performed without biopsies of the spots. Histologically, a few melanocytes were observed in the black spots, and the lesion was diagnosed as SCC (T1a‐lamina propria mucosae) with melanocytosis. We report a case of esophageal SCC with dark black spots that were difficult to differentiate endoscopically from malignant melanoma.

Publisher

Wiley

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