Analysis of MRI Diagnosis and Misdiagnosis of Parasellar Cavernous Haemangioma / 现代生物医学进展

Objective:To analyze the magnetic resonance imaging (MRI) features of parasellar cavernous haemangioma and improve the diagnosis and differential diagnosis accuracy.Methods:13 patients with parasellar cavernous haemangioma were collected.All the patients were diagnosed by MRI and confirmed by pathology.Based on the pathologic findings,the MRI features were discussed.Results:9 cases presented horizontal dumbbell.The lesions located in the parasellar were larger than the sella turcica.The main body position of the lesions were centered lateral to the parasellar and encasesed the intracavernous internal carotid artery (ICICA).While,1 cases were similar in size and shape.1 case was located in the sella turcica.2 cases was centered lateral to the ICICA.pituitary were detected obscurity in 7 cases and displaced in 6 cases,6 cases appeared extremely high homogeneous intensity on T2-weighted images:as bright as cerebrospinal fluid signal.Only 5 cases underwent three-dimensional arterial spin labelling perfusion imaging (3D-ASL).The lesions revealed marked hypoperfusion.The cases of misdiagnosis were 9,including 4 cpituitary adenomas and 5 meningiomas.Conclusions:The characteristics of MR images ofparasellar cavernous haemangioma were horizontal bottle gourd form,the main body position of the lesions were centered lateral to the parasellar and encasesed the (ICICA),and their extremely high homogeneous intensity on T2-weighted images:as bright as cerebrospinal fluid signal.In cases that are equivocal,3D-ASL were useful in differentiating cavernous haemangiomas from parasellar meningiomas,which could decrease mistaken diagnosis.Graspping the imaging feature and differential diagnosis were helpful for the diagnosis of this disease.

Hemangioma cavernoso mediastinal / Mediastinal cavernous hemangiomas

Hemangiomas mediastinais são raras lesões intratorácicas, correspondendo a aproximadamente 0,5% de todos os tumores mediastinais. Geralmente, apresentam-se nas primeiras quatro décadas de vida. O tumor descrito neste relato de caso foi diagnosticado em uma mulher de 30 anos assintomática, de forma incidental em um RX de tórax. É um tumor extremamente raro, que se enquadra no diagnóstico diferencial de tumores primários do mediastino, cujo tratamento é cirúrgico. Discutem-se a abordagem diagnóstica e a estratégia terapêutica (AU)

Mediastinal hemangiomas are rare intrathoracic lesions, representing approximately 0.5% of all mediastinal tumors. Generally, they present in the first four decades of life. The tumor described in this case report was diagnosed in an asymptomatic 30-year-old woman, incidentally on a chest x-ray. It is an extremely rare tumor, which falls in the differential diagnosis of primary mediastinal tumors, whose treatment is surgical. Diagnostic approach and therapeutic strategy are discussed (AU)

Cavernous haemangioma of cervix mimicking malignancy: a case report and review of the literature.

Haemangiomas are defined as benign neoplasm arising from blood vessels, either in internal organs or in the skin. There are two types of haemangioma: capillary and cavernous. Capillary haemangioma is usually seen at the top layer while cavernous is often found at deeper layer. These are characterized by abnormal accumulation or growth of blood vessels filled with blood. The cavernous haemangiomas occur less frequently than the capillary ones. These are usually soft to touch. Although some haemangiomas involve large portion of body, most are localized. The majority of lesions are superficial, often of head and neck, but can occur internally. The internal organs mostly affected are liver, spleen, pancreas, GIT, skin, uterus and sometimes the brain. The cervical localization is low. Most of cervical haemangiomas are incidental findings and show asymptomatic behaviour. They sometimes may cause abnormal vaginal bleeding as menorrhagia, metrorrhagia or post coital bleeding and dyspareunia. The most common differential diagnosis include cervical malignant tumor. The treatment is the surgical excision.

Tonic pupil presenting after surgical removal of an orbital cavernous haemangioma

Orbital trauma and surgery are recognised aetiological factors of tonic pupil. Tonic or Adie's pupil is an efferent pupil defect in which light reactions to one or more segments of the iris sphincter are lost due to the postganglionic parasympathetic nerves damage from ciliary ganglion. There is loss of part or all of the light reflex and decrease in accommodative functions at near. We report a case of tonic pupil in a 42-year-lady after a successful surgical removal of an orbital cavernous haemangioma.