On MRI, nasal gliomas are nonenhancing lesions within the nose or anterior to the nasofrontal suture (actually extranasal) or nasal septum that are T1 isointense and slightly T2 hyperintense (secondary to gliosis), relative to brain parenchyma. Congenital cystic lesions of the neck The MR imagi...
A Cystic Upper Lobe Lesion in a Healthy Nonsmoking Man.Presents x-ray images of a 57-year-old man diagnosed with angiosarcoma of the left upper lobe. Clinical features; Radiology; pathology; Treatment with radiotherapy; Prognosis.Leonard
Tympanokeratoma (formerly referred to as aural cholesteatoma or aural keratinizing cyst) is a non-neoplastic, cystic structure composed of a central cavity of keratin debris often with cholesterol surrounded by keratinizing, stratified squamous epithelium that originates from the tympanic membrane (Njaa...
Israel GM, Bosniak MA (2003) Follow-up CT of moderately complex cystic lesions of the kidney (Bosniak category IIF). AJR Am J Roentgenol 181:627–633 Article PubMed Google Scholar Kaza R, Caoili EM, Cohan RH, Platt JF (2011) Distinguishing enhancing from nonenhancing renal lesions with ...
CT scan showing a predominantly cystic lesion that had an enhancing wall with heterogeneous mural soft tissue Full size image Fig. 4 Sagittal view of the abdominal CT scan of the patient Full size image The patient underwent surgery to remove a large cystic mass in the abdominopelvic area. Du...
Four months later there was recurrence of seizure activity despite anti-epileptic medication and a repeat MR scan showed a persistent enhancing lesion in the left frontal lobe. Histological examination of the resection specimen resembled juvenile xanthogranuloma (JXG) involving the central nervous system...
This CT scan shows several enhancing periventricular lesions consistent with CNS involvement by lymphoma. FIGURE 16.122. A 57-year old woman developed vertigo, headaches, nausea, vomiting and diplopia with subsequent speech difficulties. A brain MRI with contrast showed a heterogeneous cystic-appearing ...
In the case of NPM, the excision involved the removal of diseased breast tissue, whereas for fibroadenoma cases, the excision encompassed the removal of the surrounding normal breast tissue adjacent to the lesion. Throughout the surgical procedure, adherence to sterility principles was imperative. We...
Treatment volumes for disseminated germinoma are analogous to those used for NGGCTs. The GTV is defined as contrast-enhancing tumor on the initial diagnostic MRI (before patient receives any form of therapy). In the unlikely circumstances that the gross disease is nonenhancing, a “ma...
(B) Diffusion weighted image and (C) Corresponding ADC map: Two ADC values of the enhancing lesion were obtained = 0.88 × 10−3 mm2/s and 0.55 × 10−3 mm2/s. (C) Single voxel MR spectroscopy with voxel placement in post contrast axial T1WI (A), The spectra ...