background and aims. mast cells are one of the characteristic factors in angiogenesis, growth, and metastatic spread of tumors. the distribution and significance of mast cells in many tumors have been demonstrated. however, few studies have evaluated mast cell infiltration in salivary gland tumors. in this study, mast cell counts were evaluated in benign and malignant salivary gland tumors. mat...

Adenoid cystic carcinoma most often presents a diagnostic and treatment challenge owing to the rarity of occurrence. Most findings reported in literature about adenoid cystic carcinoma are actually based upon studies of small number of patients and there is a dire need for further studies regarding its clinical behavior, treatment modalities and prognosis.

Adenoid cystic carcinoma is an uncommon, slow growing malignant salivary gland tumor that is characterized by wide local infiltration, perineural spread, propensity to local recurrence and distant metastasis. In this paper, the authors present a case of adenoid cystic carcinoma affecting the palate and involving the maxillary sinus in a 60-year-old male patient along with a brief review of lite...

Adenoid cystic carcinoma is a malignant salivary tumor that may arise in either major or minor salivary glands. Because of its frequent microscopic appearance resembling cross-sections of tubular structures (cylinders), it was previously referred to as “cylindroma.”. Clinically, adenoid cystic carcinoma is most common in the parotid gland, palate being the most common intraoral site.

A 54-year-old female patient, a breast cancer survivor and a case of unresectable adenoid cystic carcinoma of the trachea, with thyroid invasion, presented with suprasternal neck swelling mimicking thyroid primary. A literature search was undertaken to highlight this rare presentation. There have been few reports in the literature describing tracheal adenoid cystic carcinoma involving the thyroid.

Intraosseous adenoid cystic carcinoma is an extremely rare neoplasm with only 17 cases reported previously. A case of primary intraosseous adenoid cystic carcinoma of the mandible with lung metastasis in a 45-year-old man is reported, together with a brief review of the literature.

BACKGROUND Sinonasal adenoid cystic carcinoma is a rare malignancy of the head and neck. Cavernous sinus invasion from sinonasal adenoid cystic carcinoma and its related management have rarely been investigated. This study evaluated the relationship between treatment outcome and cavernous sinus involvement in addition to other parameters. METHODS A retrospective case series study was conducte...

Histologic variants of prostatic carcinoma are readily recognized. In this report, we describe a rare variant, adenoid cystic carcinoma, in a 75-year-old man previously diagnosed to have transitional cell carcinoma of the urinary bladder. The diagnosis of adenoid cystic carcinoma was made by the characteristic microscopic features of the tumor morphologically and immunohistochemically. Two mont...

The clinical characteristics and outcome of 50 primary malignant neoplasms of the lacrimal gland are reviewed: 38 (76%) adenoid cystic carcinomas, six (12%) carcinomas arising in pleomorphic adenoma, and six (12%) adenocarcinomas or other types of carcinoma. Most patients presented with a short history and pain, though pain tended to occur less often and later with adenocarcinoma than with aden...

BACKGROUND High-grade transformation or dedifferentiation in carcinoma is progression of a low-grade malignant neoplasm to a high-grade carcinoma or poorly differentiated adenocarcinoma. This is rarely observed in adenoid cystic carcinoma of the salivary glands. CASE REPORT A 39 year-old woman presented with a painless mass at the left submandibulary region that had been growing slowly for 5 ...