Cutaneous adenoid cystic carcinoma: clinical conundrum of a lower limb mass

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Keywords:

cutaneous adenoid cystic carcinoma

Abstract

Background: Adenoid cystic carcinoma is a rare epithelial tumour of the salivary glands. It arises even more rarely in the aerodigestive tract, lacrimal glands and adnexal skin glands. Acral metastasis is a rare presentation of carcinoma of unknown origin. Head and neck malignancies with acral metastasis are extremely rare.

Case report: We present our case of metastatic adenoid cystic carcinoma presenting in the form of a tumour arising from an adnexal skin gland of the foot.

Discussion: The case is an example of atypical presentation and dilemma in diagnosis of adenoid cystic carcinoma (histopathological confusion). To our knowledge there is no case in the literature with similar clinicopathological highlights.

Conclusion: Corroborative information is crucial for accurate diagnosis and appropriate management of patients by multidisciplinary teams. The need for timeous presentation and treatment for masses, even if clinically asymptomatic, is also highlighted.

Level of evidence: Level 5

Author Biographies

Sujith Philip, University of the Witwatersrand

Department of Orthopaedics, Klerksdorp Hospital, University of the Witwatersrand, Johannesburg, South Africa

Marule P Kgagudi, University of the Witwatersrand

Department of Orthopaedics, Chris Hani Baragwanath Academic Hospital, University of the Witwatersrand, Johannesburg, South Africa

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Published

2023-05-18

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Section

Case Report