Polymorphous adenocarcinoma is a slow growing malignant tumor of minor salivary glands. The most common location of these tumors is palate, buccal mucosa, upper lip, floor of mouth and retromolar region. This malignant neoplasm is characterized by cytological uniformity, architectural diversity and infiltrative growth pattern. This is a case report of polymorphous adenocarcinoma occurring in lacrimal gland. They are seldom reported in this location and propose unique diagnostic challenges.
Polymorphous adenocarcinoma (PA) of the salivary glands is a rare malignancy that predominantly affects the minor salivary glands of the palate. Major salivary gland involvement is rare (<5%). The submandibular gland is a highly unusual location for this tumour. Recently, the WHO has updated the classification of salivary gland tumours in which the PA subtype has been modified. We report a very uncommon case of a classical variant of PA involving the submandibular gland in a 49-year-old woman managed at our institute and discuss the most recent pathological criteria for diagnosis, management strategy and prognosis of PA.
Cribriform adenocarcinoma of the tongue with cervical lymph nodes involvement: Report of an extremely rare tumor and focus about differential diagnosis with polymorphous adenocarcinoma
