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Browsing by Author "Raposo Dinis, S"

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  • Mesonephric Hyperplasia can Cause Abnormal Papanicolaou Smears: A Case Report
    Publication . Pedrosa, I; Alpendre, F; Sousa, R; Raposo Dinis, S; Figueiredo, P
    Mesonephric hyperplasia (MH) is a very rare condition. There are few cases in the literature. Mesonephric remnants (MR) or MH can be a rare source of abnormal Papanicolaou smears. The most common, often difficult, in the differential diagnosis of MH is mesonephric carcinoma that has a poor prognosis. We report a case of a 29-years-old with a routine Papanicolaou smear reported as atypical glandular cells. The patient underwent to a loop electrosurgical excision procedure and because it is a benign condition and a strong desire to preserve fertility, we opted for clinical surveillance.
    2020Journal article Open access Show more
  • Rare Case of Sarcomatoid Squamous Cell Carcinoma Arising in an Ovarian Mature Teratoma
    Publication . Sousa Pedrosa, I; Alpendre, F; Sousa, R; Raposo Dinis, S; Gomes, D
    Although mature cystic teratoma (MCT) is benign, malignant transformation (MT) occurs in ∼ 1% to 2% of all cases, and usually consists of squamous cell carcinoma (SCC), which accounts for ∼ 80% of the cases. Spindle-cell (sarcomatoid) carcinoma (SCSC) is an uncommon type of SCC, comprising up to 3% of all cases. The lack of characteristic symptoms and specific imaging findings may lead to preoperative misdiagnosis. Moreover, the clinicopathologic characteristics, the treatment, the prognostic factors and the mechanism of MT have not yet been well understood due to the rarity of such tumors, especially in women of reproductive age. The authors present a case of a 34-year-old patient with 14 weeks of gestation who was diagnosed with an adnexal mass suggestive of ovarian teratoma. A laparoscopy salpingo-oophorectomy was performed after 6 months of delivery, and the histological exam revealed a sarcomatoid SCC in the MCT.
    2019-10Journal article Open access Show more