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S Boi

Publications and source records attributed to S Boi.

15 recordsLinked to original sources
PubMed1992

Small cell carcinoma of the urinary bladder. Report of two cases and review of the literature.

Undifferentiated small cell carcinoma of the bladder is a rare but aggressive subset of urinary tract neoplasms. Analogous to small-cell carcinoma of the lung, this tumor frequently exhibits neuroendocrine differentiation. We report the 92nd and 93rd case of small cell carcinoma of the bladder reported in the literature with characteristic cytologic, histologic, histochemical, and ultrastructural features. The patients were treated initially with chemotherapy, but after a brief clinical course died for progression of disease and for myocardial infarction, respectively. The pathologic and clinical features and therapeutic options of the cases described in the literature are reviewed.

Carcinoma, Small Cell↗
PubMed1991

Late metastases of cutaneous melanoma: case report and literature review.

The development of delayed metastases, although rare, is well documented in patients with invasive cutaneous melanoma. Only 24 cases, including ours, are clearly documented in the literature. We describe a 56-year-old woman who had an acral lentiginous melanoma of the right hand (thickness 1.2 mm). Thirteen years after excision and postoperative irradiation, a subcutaneous metastasis developed in the right arm. One year later the patient died with disseminated bone metastases. This case, as with most of those with delayed metastases, has typical features: female sex; location at a site other than the back, arm, neck, or scalp; and primary tumor thickness between 1.2 and 2.5 mm.

Arm↗
PubMed1991

Malignant blue nevus. Report of four new cases and review of the literature.

Malignant blue nevus is a rare melanotic tumor of the skin arising from a pre-existing blue nevus. To date only few cases have been reported. The diagnosis of malignant blue nevus is frequently difficult. Generally accepted criteria do exist, but their application may be controversial. The present paper reports four new cases of malignant blue nevus with follow-up of 3-5 years. Our present data, along with those of the literature, suggest that malignant blue nevus may be more aggressive than generally thought.

Adult↗
PubMed1990

6-Methylangelicins: new monofunctional photochemotherapeutic agents for psoriasis.

The monofunctional furocoumarins, the 6-methylangelicins, were tested for their antiproliferative activity with various animal models and for genotoxicity in micro-organisms and in mammalian cells. The most active compound was 6,4,4'-trimethylangelicin, which showed a high antiproliferative effect and reduced genotoxicity in comparison with 8-methoxypsoralen (8-MOP). Some of these compounds were also tested clinically by topical application on 17 patients with psoriasis. They appeared to be more active than 8-MOP in clearing psoriasis without inducing skin phototoxicity. The methylangelicins also caused skin pigmentation.

Animals↗
PubMed1990

Metastases to the breast from extramammary malignancies.

Metastases to the breast from all other primary sites are unusual. Twelve female patients were diagnosed between 1971 and 1985 at S. Chiara Hospital-Trento. The majority of these metastases were from malignant melanoma (5) and ovarian cancer (3). In 1 case the lesion was the first sign of malignant disease (adenocarcinoma of the kidney). The development of a breast metastasis is revealed, in our experience, as a negative prognostic factor. Recognition of these lesions as being metastatic is useful in avoiding unnecessary radical operative procedures.

Adolescent↗
PubMed1988

Mucinous sweat-gland adenocarcinoma of the inner canthus: a case report.

Mucinous sweat-gland adenocarcinoma is a rare tumor of the eyelid. Fewer than 30 cases have been reported in the literature. We describe the case of a 77-year-old man with a papillomatous lesion of the inner canthus. The lesion was removed, and the histologic examination confirmed the diagnosis of a mucinous sweat-gland adenocarcinoma. After three years, there has been no recurrence or metastasis.

Adenocarcinoma↗
PubMed1986

[Early diagnosis of cutaneous melanoma and its precursors. Importance of the clinical characteristics of thin melanoma].

The diagnosis and removal of precursor and early lesions is the only method to improve the prognosis and survival rate in malignant melanomas of the skin since the aetiology of the disease is unknown and treatment ineffective when the neoplasm is diagnosed at an advanced stage. A campaign for the prevention and early diagnosis of melanoma is based on the health education of the entire population with the distribution of illustrative material that by teaching people to examine their skin will show up suspicious pigmentary lesions that can be examined and removed by the dermatologist. Thin melanoma is always curable when removed and constitutes the basic tumour to be described to the public as it is easily identified and has constant, typical features. Among the precursors the most interesting lesions is the sporadic or familial dysplastic nevus despite the controversy over its pathogenic significance and morphological aspect. The other pigmentary neoplasias (congenital and acquired nevus) only must to be removed when they present changes resembling thin melanoma.

Dysplastic Nevus Syndrome↗
PubMedDate not supplied

Malignant cellular blue nevus with true nodal metastases.

A case of malignant blue nevus initially misdiagnosed as cellular blue nevus with atypia is reported: the correct diagnosis was established after the onset of true nodal metastases. Diagnostic criteria in this difficult field of dermatopathology are examined and their limits discussed in view of the not rare pitfalls reported in literature.

Adult↗