A 47-year-old man presented with intussusception of the colon and was found to have a large tubulo-villous adenoma high grade dysplasia, transforming into adenocarcinoma. The bowel adjacent polyp showed florid vascualr proliferation, mimicking vascular neoplasm. However, there were no signs atypia or malignancy in lesion. We illustrate an example chronic obstruction inducing hypoxia, leading ne...

Approximately 15% of renal cell carcinomas metastasize to the head and neck region. Here in, we report a rare case patient who underwent nephrectomy for carcinoma (RCC) ten years ago presented with metastatic on her lower lip. A 65-year-old woman rapidly growing mass Pathology resulted in metastasis. Although is uncommon, metastasis should be considered differential diagnosis vascular lesion ar...

BACKGROUND Previous studies identified a high frequency of silent ischemic lesion recurrence on magnetic resonance imaging (MRI) after an index stroke. OBJECTIVE To investigate whether ischemic lesion recurrence on MRI predicts subsequent clinical events. DESIGN Retrospective cohort study. SETTING General community hospital. Patients We recruited 120 patients who experienced an acute isch...

vascular lesions rise from abnormalities in blood vessels or endothelial proliferation . capillary hemangiomas are formed by small capillaries surrounded by a layer of endothelial cells in a connective tissue stroma . various treatments are used for these conditions like excisional surgery , sclerotherapy, and recently laser irradiation. in this case study, we report successful treatment of int...

hemangiomatous ameloblastoma (ha), which is a rare ameloblastic variant, is presented in a 15-year-old boy in the maxillary right molar region associated with unerupted canine and premolars. radiologic and computed tomographic analysis was suggestive of cystic lesion. an histology picture confirmed the diagnosis of ha. there are less than eight cases documented in the literature and mostly are ...

Atherosclerosis is responsible for more than half of all deaths in western countries. Numerous studies have reported that exuberant accumulation of smooth muscle cells (SMCs) plays a principal role in the pathogenesis of occlusive vascular diseases. It has been assumed that SMCs derived from the adjacent medial layer migrate towards the atherosclerotic lesion, proliferate and synthesize extrace...

BACKGROUND AND PURPOSE Cerebral small vessel disease may be related to vascular and nonvascular pathology. We assessed whether lacunar infarcts and white matter lesions on MRI increased the risk of vascular and nonvascular death and future vascular events in patients with atherosclerotic disease. METHODS Brain MRI was performed in 1309 patients with atherosclerotic disease from the Second Man...

A 55-year-old female patient presented with dyspnea, cough and chest pain. An abnormal mass-like lesion in the left upper pulmonary lobe was detected on chest X-ray (Fig. 1). There was no significant abnormal change in patient’s physical examination and laboratory tests. Patient was referred to our center for investigation of lung nodule with Positron Emission Tomography/Computed Tomography (PE...

Vascular smooth muscle cell (VSMC) modulation to a de-differentiated phenotype and proliferation are key components of vascular lesion formation. Understanding how these processes are regulated is essential to understanding the progression of vascular diseases such as atherosclerosis and in-stent restenosis. The Id family of helix-loop-helix (HLH) transcription factors has emerged as important ...

Pediatric stroke is a relatively rare occurrence, with an annual incidence of 1.2–13 cases per 100,000. Hemorrhagic strokes account for half of these cases.[28] In adults, hemorrhagic strokes are predominantly hypertensive in etiology. However, in the pediatric population, they are frequently associated with vascular lesions such as AVMs (47%), arteriovenous fistulas, or CMs [Table 1].[21] Othe...