Expression of β- and β-adrenergic receptors in oral squamous cell carcinoma and their association with psychological and clinical factors.

Background: Psychological stressors have been related to tumor progression through the activation of beta-adrenergic receptors (β-AR) in several types of cancer.

Purpose: This study aimed to investigate the expressions of β- and β-AR and their association with psychological and clinicopathological variables in patients with oral squamous cell carcinoma.

Methods: Tumor samples from 99 patients diagnosed with OSCC were subjected to immunohistochemical reaction to detect the expression of β-AR and β-AR.

Bilateral intra-lymph node Warthin's tumor as a potential diagnostic pitfall mimicking metastatic carcinoma.

Warthin's tumor (WT) is a benign and frequent salivary gland tumor primarily affecting the parotid gland. In some cases, this tumor can involve the extra parotid region and affect cervical lymph nodes. Fine-needle aspiration can be the first step in the diagnostic approach to lymphadenopathy; however, specimens from intra-nodal WT can present a potential pitfall, leading to a misdiagnosis of metastasis.