PMC10310330_01
(a): Rapidly growing left facial mass associated with occasional pain and trismus. (b): CT scan of the left parotid mass with osseous destruction of the mandible.
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figure1
Despite the patient's rapidly growing left facial mass (Figure 1a), consultation with his medical oncologist was delayed due to inadequate health-seeking behaviour and financial difficulties. A neck and oral cavity contrast-enhanced CT scan revealed a 5 x 7 x 6 cm inhomogenous mass in the left parotid with osseous destruction of the mandible (Figure 1b).
(a): Primary sigmoid adenocarcinoma (haematoxylin and eosin stain, at 40x magnification). (b): High-grade carcinoma of the parotid gland (haematoxylin and eosin stain, at 40x magnification). Both images show disorganised glandular patterns with high-grade nuclear features.
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figure2
Fine needle biopsy of the mass showed papillary, solid and disorganised glandular patterns with high-grade nuclear features with pleomorphic nuclei - consistent with a high-grade carcinoma, and not purely adenocarcinoma (Figure 2a and b).