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Case Reports
. 2023 Jan 12;15(1):e33723.
doi: 10.7759/cureus.33723. eCollection 2023 Jan.

Solitary Scalp Metastases of Parotid Pleomorphic Adenoma: A Case Report

Raghad Wasil AlNahwe  1 , Abdullah Abdulaziz Al Ghamdi  1 , Ziyad Mosleh Alanazi  1 , Lama AlSahli  2 , Razan Aldhahri  3 , Alaeddin Jebreel  3
Affiliations
Case Reports

Solitary Scalp Metastases of Parotid Pleomorphic Adenoma: A Case Report

Raghad Wasil AlNahwe et al. Cureus. .

Abstract

Pleomorphic adenoma (PA) of the parotid gland is considered one of the commonest benign salivary gland neoplasms in both adults and pediatrics. However, metastatic pleomorphic adenoma (MPA) is extremely rare. In the past three decades, multiple cases were reported in the literature of MPA, where the metastatic phase has been preceded by a local recurrence for the majority of the cases. Metastases to the lungs, liver, bone, head and neck were reported. This paper will discuss a rare case presentation of MPA that metastasised solely to the face and scalp subcutaneous tissue with no other sites of metastases in a male adult.

Keywords: a case report; benign pleomorphic adenoma; parotid gland metastasis; pleomorphic adenoma of parotid gland; salivary gland neoplasm; salivary gland tumor; scalp lesions; solitary metastasis.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. (A) CT scan, Arrow: shows right-sided parotid local recurrence. (B) CT scan, Arrow: area post revision parotidectomy.
Figure 2
Figure 2. (A) and (B) Seven scalp lesions identified on histopathology as pleomorphic adenoma.
See this image and copyright information in PMC

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