47,649 results match your criteria: "Hemangioma"

Background: Kaposiform hemangioendothelioma is a rare vascular tumor primarily occurring in infants and children. The most common sites for kaposiform hemangioendothelioma are extremities, with very few cases of abdominal kaposiform hemangioendothelioma reported in neonates. Making a diagnosis of Kaposiform hemangioendothelioma can be challenging when the patient presents with generalized symptoms such as bilious vomiting and constipation that can be attributed to other more common causes of intestinal obstruction.

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Optimal in vitro models as a basis for understanding and more effective treatment of infantile hemangiomas.

Br J Dermatol

December 2024

Scientific Centre of Excellence for Reproductive and Regenerative Medicine, University of Zagreb, School of Medicine, Šalata 3, 10000 Zagreb, Croatia.

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Macrophage Ferroptotic Resistance Is Required for the Progression of Infantile Hemangioma.

J Am Heart Assoc

December 2024

State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School and Hospital of Stomatology Wuhan University Wuhan China.

Background: Ferroptosis is a programmed cell death caused by iron-dependent accumulation and cellular lipid peroxides, which is different from apoptosis and pyroptosis. This study investigated the possible effect of ferroptotic response in the pathogenesis of infantile hemangioma (IH).

Methods And Results: The staining level of 4-hydroxynonenal (4-HNE), the marker of ferroptotic cells, was significantly increased in the involutive IH samples compared with the proliferative samples (9 proliferative versus 12 involutive lesions, =0.

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Introduction And Importance: Sturge Weber Syndrome (SWS) is a congenital neurocutaneous disorder that affects several organs. Abnormal ocular findings are typically on the same side as the SWS. These changes can affect various parts of the eye, including the eyelid, front chamber, cornea, choroid, and retina.

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Objective: To assess the accuracy of CT spectral HU curve assessment of hypodense liver lesions.

Methods: In this retrospective HIPAA-compliant study (January 2016 through May 2023), patients with biopsy-proven pancreatic adenocarcinoma and a biopsied indeterminate liver lesion underwent a DECT abdominal CT scan. Spectral HU curves were provided for each hypodense liver lesion, and slopes were calculated.

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Cavernous hemangioma in the masticatory space.

Einstein (Sao Paulo)

December 2024

Centro Estadual de Reabilitação e Readaptação Dr. Henrique Santillo, Goiânia, GO, Brazil.

Hemangiomas are benign congenital vascular tumors that commonly arise in the head and neck regions. Although they present with indolent growth and involution in most cases, they can cause facial deformities. Hemangiomas have three subtypes: capillary, cavernous, and mixed.

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Pseudomyogenic hemangioendothelioma is an ultra-rare vascular sarcoma that most commonly affects young adults, with a male predominance. It is diagnosed using a combination of imaging studies, histopathological examinations, and immunohistochemical staining. Surgical excision is the mainstay of treatment for pseudomyogenic hemangioendothelioma, with the goal of achieving a wide local excision and reducing the risk of recurrence.

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Background: Liver hemangiomas (HGs) are characterized by cavernous venous spaces delineated by a lining of vascular endothelial cells and interspersed with connective tissue septa. Typically, a liver HG has higher apparent diffusion coefficient (ADC) and T2 values than those of hepatocellular carcinomas (HCCs) and liver metastases, and lower ADC and T2 values than those of liver simple cysts. However, a portion of HGs shows ADC and T2 overlapping with those of HCC, liver metastasis, and simple cyst.

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Pulmonary sclerosing pneumocytoma is a rare benign neoplasm typically seen in middle-aged women. The exact preoperative diagnosis is quite challenging considering its nonspecific clinical and radiologic features along with complex histology. Moreover, obtaining an exact histopathological diagnosis can be difficult especially with the small biopsy specimens.

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Cerebral cavernous malformations are benign vascular anomalies of the central nervous system (CNS). The clinical presentation of a cavernoma depends on its location. The majority of patients with cavernomas are asymptomatic.

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Importance: Although clinical practice guidelines exist for the treatment of infantile hemangiomas (IHs), recommendations are heterogeneous, and wide practice variations in IH management have been reported.

Objective: To analyze the degree of agreement in treatment choices for IH among pediatric dermatologists in North America and Europe and assess whether there are differences across IH risk categories.

Design, Setting, And Participants: This cross-sectional interrater and intrarater agreement study was conducted through a survey based on the Spanish Academy of Dermatology and Venereology IH prospective cohort.

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Intranodal Hemangioma: Case Report and Systematic Review.

J Indian Assoc Pediatr Surg

November 2024

Department of Pediatric Surgery, AIIMS, Delhi, India.

Background: Intranodal hemangiomas are rare benign vascular tumors of the lymph nodes, often misdiagnosed as malignant lymphadenopathies due to their clinical and radiological features. This case report and systematic review aim to elucidate the epidemiology, clinical profile, and therapeutic interventions for intranodal hemangioma, enhancing diagnostic accuracy and management.

Methods: A systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.

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Teaching NeuroImage: Intracranial Cerebral Aneurysms Secondary to Epithelioid Hemangioendothelioma.

Neurology

January 2025

Department of Neurology, National Center for Neurological Disorders, Huashan Rare Disease Center, Huashan Hospital, Affiliated to Fudan University, Shanghai, China.

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Diabetic retinopathy (DR) is a severe microangiopathy of diabetes. Müller cells play an important role in the development of DR. Acteoside (ACT) has been reported to be effective in the treatment of DR.

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Efficacy and safety of oral propranolol and topical timolol in the treatment of infantile hemangioma: a meta-analysis and systematic review.

Front Pharmacol

December 2024

Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, National Children's Medical Center for South Central Region, Guangzhou Medical University, Guangzhou, China.

Background: Propranolol, a nonselective β-blocker, is the first-line treatment for infantile hemangioma (IH). Topical timolol has recently been proposed as a novel IH treatment with fewer adverse effects. This study was conducted to compare the efficacy and safety of oral propranolol and topical timolol for treating IH.

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Infantile Haemangioma (IH) is vascular tumour in infants exhibiting rapid proliferation and angiogenesis followed by gradual involution.10% of cases are associated with disfiguring complications and requires medical interventions with β-blockers such as propranolol, surgery, or laser therapy. An in vitro IH three-dimensional (3D) model will improve our understanding of the disease mechanism(s).

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Article Synopsis
  • This study investigated eye and small blood vessel issues in patients who experienced symptoms after recovering from COVID-19, analyzing 44 patients mostly around 47 years old.
  • Using advanced imaging techniques, researchers found significant retinal abnormalities, including hyperreflective dots and areas of capillary non-perfusion, indicating compromised blood flow.
  • The results suggest that these retinal changes are linked to reduced capillary density, highlighting the importance of microvascular damage instead of just lasting problems with a protective layer around blood vessels.
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Introduction: The 595-nm wavelength pulsed dye laser (PDL) is well-established in the treatment of vascular lesions. In June 2023, it received FDA clearance for the treatment of port-wine birthmarks (PWB) and infantile hemangiomas (IH) in the pediatric population.

Objective: Review the evidence regarding the efficacy, safety, and implications of using PDL for management of pediatric PWB and IH.

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Von Hippel-Lindau (vHL) is a hereditary disease characterized by the development of benign and malignant tumors across multiple organ systems. It is seen in approximately 1 in 36,000 live births. Given that vHL is a rare disease, studies that seek to characterize vHL are often hampered by small sample sizes.

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Background: The prognostic impact of preoperative gamma-glutamyl transpeptidase to platelet ratio (GPR) levels in patients with solitary hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC) following radical resection has not been established.

Aim: To examine the clinical utility of GPR for prognosis prediction in solitary HBV-related HCC patients.

Methods: A total of 1167 solitary HBV-related HCC patients were retrospectively analyzed.

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A two-month-old male infant presented with a soft palpable mass on his left upper eyelid. Initial management consisted of watchful observation followed by administration of β-blocker eyedrops on the eight-month check-up when a purple subconjunctival mass was observed during eyelid eversion, suggestive of an infantile hemangioma. At the three-year follow-up, since it was observed that the treatment did not reduce the size of the mass, an excisional biopsy was performed at the request of the mother.

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Hemangioblastoma (HAB) is a benign, richly vascularized tumor that accounts for 2-6% of all spinal cord neoplasms and ranks third in the structure of intramedullary space-occupying lesions of the spinal cord. Hemangioblastoma may occur sporadically or, in approximately 30% of cases, as part of the clinical picture of a hereditary disease, von Hippel-Lindau disease. The aim of this study was to evaluate the efficacy and safety of stereotactic irradiation of hemangioblastomas of the spinal localization in patients with sporadic and von Hippel-Lindau-associated hemangioblastomas The results of stereotactic radiotherapy were evaluation of 210 spinal hemangioblastomas in 74 patients.

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