eosinophilic cholecystitis (ec) is a rare entity that presents in a manner comparable to acute cholecystitis. the diagnosis is based on classical symptoms of cholecystitis with the presence of eosinophils (>90%) within the gallbladder. ec has been reported alone (idiopathic ec) or in combination with manifestations such as eosinophilic cholangitis, hypereosinophilic syndromes, and parasitic inf...

Eosinophilic cholecystitis (EC) is a rare entity that presents in a manner comparable to acute cholecystitis. The diagnosis is based on classical symptoms of cholecystitis with the presence of eosinophils (>90%) within the gallbladder. EC has been reported alone (idiopathic EC) or in combination with manifestations such as eosinophilic cholangitis, hypereosinophilic syndromes, and parasitic inf...

Intravascular papillary endothelial hyperplasia is a rare benign vascular lesion of the skin and subcutaneous tissues, characterized by a reactive proliferation of endothelial cells that can present de novo in normal blood vessels (primary intravascular papillary endothelial hyperplasia), but it can also develop from a pre-existing vascular process (type II intravascular papillary endothelial h...

DIAGNOSIS: A. All that is papillary in the bladder is not papillary urothelial neoplasia: i. Diagnostic pitfalls: papillary hyperplasia, nephrogenic adenoma, fibroepithelial polyp and papillary/polypoid cystitis ii. Artifacts: pseudopapillary folds and avulsed urothelium B. All urothelial proliferations that expand the lamina propria are not invasive carcinoma: i. Diagnostic pitfalls: florid vo...

Intravascular papillary endothelial hyperplasia, previously known as Masson's tumor, is a relatively uncommon reactive endothelial proliferation that occurs most commonly in the vessels of the head, neck, and extremities. We report a case of intravascular papillary endothelial hyperplasia in the neck in a 40-year-old female that was misdiagnosed as papillary adenocarcinoma on fine needle aspira...

Papillary proliferation of the endometrium is an unusual lesion that is composed of papillae with fibrovascular stromal cores covered with benign-appearing glandular epithelium. We studied the clinicopathological and immunohistochemical features of four cases of endometrial papillary proliferations. All patients were postmenopausal. Two lesions were incidental findings in hysterectomy specimens...

Introduction: Papillary thyroid carcinoma (PTC) is the most common malignant neoplasm of neck. Most cases PTC are diagnosed based on pathologic criteria. However, few lesions that mimic nuclear features or architecture pose diagnostic problems. projections may be encountered in benign papillary hyperplasia multinodular goiter, Hashimoto’s thyroiditis, and Graves’ disease. For this reason, appro...

INTRODUCTION Intravascular papillary endothelial hyperplasia is a reactive proliferative lesion of endothelial cells in blood vessels. It typically presents as a painless, reddish purple lesion in the sites affected. The orbit remains an uncommon site of affectation of this relatively common disease. It is noteworthy that this is the first reported case, to the best of our knowledge, of orbital...

1. Makos CP, Nikolaidou AJ. Intravascular papillary endothelial hyperplasia (Masson’s tumour) of the oral mucosa. Presentation of two cases and review. Oral Oncol Extra 2004;40:59‐62. 2. Sarode GS, Sarode SC. Extra‐vascular type of oral intravascular papillary endothelial hyperplasia (Masson’s tumour) of lower lip: A case report and review of the literature. Indian J Dent Res 2015;26:101‐5. 3. ...