Publications by authors named "Arrechea M"
Article Synopsis
- Nonsystemic vasculitic neuropathy (NSVN) is an inflammatory condition affecting small blood vessels supplying nerves, often presenting as mononeuritis multiplex.
- A case of a 36-year-old woman with NSVN showed initial symptoms of tingling and weakness, with neurophysiological tests revealing low amplitude in the right median nerve and evidence of axonal damage.
- The study highlights that early ischemic nerve damage can cause misleading patterns in nerve conduction studies, indicating the need for repeated tests to accurately assess changes over time in suspected vasculitic neuropathies.
Background: Both trichoblastoma and basal cell carcinoma (BCC) of the skin are characterized morphologically by the proliferation of basaloid cells; however, BCCs are clinically associated with a more aggressive behavior. An accurate diagnosis of these lesions is essential for effective, timely treatment and appropriate therapeutic decisions.
Methods: This study includes 40 lesions.
A chondroblastoma is a benign tumour of cartilaginous origin which represents less than 1% of all primary osseous tumours. It is typically localised in the epiphysis of the long bones. Some 10% of chondroblastomas affect the bones of the foot and the hand.
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- The study investigates how neoadjuvant therapy affects hormone receptor status (estrogen and progesterone receptors) and c-erbB2 expression in breast cancer patients.
- A total of 53 patients were analyzed, comparing the expression levels of these markers in both biopsy samples and surgical specimens, particularly in those who underwent preoperative treatment.
- Significant differences were observed in hormone receptor expression between patients who received neoadjuvant therapy and those who did not, with minor changes in receptor status post-treatment, though these changes were not statistically significant.
Article Synopsis
- Typical carcinoid tumors are uncommon and difficult to diagnose through sputum cytology, with limited documented cases.
- A 71-year-old nonsmoker experienced a persistent cough and after two negative sputum tests, a third sample revealed tumor fragments due to partial expulsion of an endobronchial mass.
- The rarity of diagnosing typical carcinoid tumors through sputum is highlighted, as they are usually covered by bronchial mucosa, with this case being a rare exception previously reported only once.