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Acinic cell carcinoma arising in a parotid lymph node
1Department of Oral Pathology, Faculty of Stomatology, University of Belgrade, Srbija, Yugoslavia.
International Journal of Oral and Maxillofacial Surgery
|October 1, 1993
Summary
A rare case of acinic cell carcinoma, a salivary gland cancer, originating in an intraparotid lymph node is described. This finding highlights the importance of recognizing malignant changes in ectopic salivary tissues within lymph nodes.
Area of Science:
- Head and Neck Pathology
- Surgical Oncology
- Salivary Gland Neoplasms
Background:
- Ectopic salivary gland tissue can occur within lymph nodes, particularly in the parotid region.
- Intranodal salivary gland tissue may undergo malignant transformation, though such instances are rare.
- Acinic cell carcinoma is a malignant salivary gland neoplasm characterized by its ductal or acinar differentiation.
Observation:
- A 37-year-old woman presented with a primary acinic cell carcinoma.
- The tumor arose within an intraparotid lymph node, a location not previously well-documented for this specific neoplasm.
- Histopathological examination confirmed the diagnosis of acinic cell carcinoma originating from intranodal salivary gland tissue.
Findings:
- The patient underwent a superficial parotidectomy for tumor removal.
- Post-operative follow-up at 20 months showed no evidence of disease recurrence or metastasis.
- This case represents a likely first documented instance of acinic cell carcinoma arising in ectopic salivary gland tissue within a lymph node.
Implications:
- This case underscores the necessity for heightened awareness among clinicians and pathologists regarding the potential for malignancy in ectopic salivary gland tissues within lymph nodes.
- Recognition of such rare presentations is crucial for accurate diagnosis and appropriate management of salivary gland neoplasms.
- Further investigation into the pathogenesis and behavior of intranodal salivary gland carcinomas may be warranted.