ABSTRACT
Sclerosing polycystic adenosis (SPA) is primarily a disease of major salivary glands. It was recognized as a distinct morphologic entity by Smith et al. in 1996. To best of our knowledge, 67 cases of SPA are reported in English literature. Here, we describe a case of SPA showing classic histomorphological features, involving the parotid gland of a 17-year-old girl. It was diagnosed as mucoepidermoid carcinoma at a peripheral hospital and was referred to our center. Histologically, it was well circumscribed and composed of lobules, separated by hyalinized stroma. Lobules showed adenosis, foci of acinic cell hyperplasia, and intraductal epithelial proliferation. Immunohistochemistry with p63 highlighted myoepithelial layer around every duct, acinus, and also in foci showing epithelial hyperplasia. There was no evidence of malignancy. Awareness of SPA, a benign rare entity, is essential to avoid misdiagnosing it as other common salivary gland tumors which it may mimic.
ABSTRACT
Intrinsic or extrinsic obstruction of the pyloric channel or duodenum either by benign or malignant diseases leads to gastric outlet obstruction. With improvement in science and technology, the spectrum of gastric outlet obstruction has changed from peptic ulcer disease to corrosives and malignant diseases. Newer investigations like computerized tomography and endoscopy have supplemented the previous clinical tests like saline load test and barium series. Improvised treatment modalities like endoscopic balloon dilatation and endoscopic incision have circumvented the use of surgery which was the gold standard for management of gastric outlet obstruction. Newer modalities like biodegradable stents have an upcoming role in the management.