Publications by authors named "Joana Sobreiro Silva"

Craniopharyngiomas are tumors of the central nervous system, typically located in the sellar/parasellar region. Despite being benign, they behave aggressively due to their propensity to invade nearby important structures, making total resection challenging. Distant spread of craniopharyngioma is a rare but significant complication.

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Article Synopsis
  • Cavernous hemangiomas (cavernomas) are benign vascular malformations often found in the central nervous system, primarily in the brain, but can also occur in the spine, notably in the cauda equina, which is rare.
  • A case study details a 69-year-old woman with low back pain and sciatica, where MRI revealed an intradural mass at the L1-L2 level, later confirmed as a cavernous hemangioma after surgical resection.
  • The report includes a literature review on cauda equina cavernomas, covering their clinical symptoms, imaging features, histology, and surgical approaches.
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A 19-year-old male presented to the emergency department with a 7-day history of melena, anorexia and asthenia. Blood tests revealed a hemoglobin of 5.8 g/dL.

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A 50-year-old male was referred to a Gastroenterology appointment after a screening colonoscopy with a 25mm exophytic lesion, with a depressed central area, on the transverse colon. Histologic examination of the biopsy specimen showed low-grade dysplasia. The patient was submitted to a new colonoscopy and what was seen was a flat lesion with central depression, with no lift-sign (Figure 1a and 1b) and, therefore, endoscopic resection was not performed.

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A 62-year-old woman was referred to Gastroenterology appointment due to severe iron deficiency anemia (5.9 g/dL), complaining of asthenia and requiring blood transfusion. The patient denied blood loss.

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