• Adarsh Kumar Jhunjhunwala, Dilasma Gharti Magar, Dipesh Upreti, Niku Thapa, Arnab Ghosh, Sushma Thapa, Sudeep Regmi, and Bishowdeep Timilsina.
• Department of Pathology, Manipal College of Medical Sciences, Pokhara, Kaski, Nepal.
• JNMA J Nepal Med Assoc. 2022 Apr 15; 60 (248): 402-405.

AbstractPrimary mucinous carcinoma of the skin is a rare malignant neoplasm showing predilection to the periorbital region. These tumours are indolent and low-grade, with a tendency for local, sometimes multiple, recurrences. Distinguishing between these primary neoplasms and the more frequent metastatic mucinous deposits on the skin from primaries in the breast and gastrointestinal tract constitutes a diagnostic dilemma. In this case report, we have put forth the findings of a 70-year-old male who presented with a slow-growing periorbital swelling and was subsequently diagnosed with mucinous adenocarcinoma. An extensive workup in search of another primary tumour failed to show a primary malignancy elsewhere and the diagnosis of primary mucinous adenocarcinoma of the skin was rendered.

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