Lukasz Woźniak

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Two hundred sixty-two invasive breast carcinomas dating from 1979 to 1984 were tested for vimentin and keratin on formaldehyde-fixed paraffin-embedded sections. None of 26 lobular carcinomas expressed vimentin. Vimentin expression in 10% or more of tumor cells was found in 78% of medullary (14 of 18), in 16% of ductal not otherwise specified (NOS) (35 of(More)
The clinico-morphological features in 13 patients (nine female) with neuroendocrine carcinoma of the skin are presented. The mean age was 64.9 years. The limbs were the most common site of primary tumour, followed by the face. The clinical course was characterized by a high incidence of regional lymph node metastases (69%) and recurrences (46%). Seven of(More)
The monitoring of the patients after salivary gland tumors surgery is an important clinical issue. Still imperfect diagnostic procedures also remain a challenge for searching new sensitive and specific biomarkers of neoplastic processes in salivary glands. The aim of the presented study was an the assessment of the activity of HEX, with its isoforms HEX-A(More)
Thirty-six diagnostically difficult fine needle aspirates from enlarged lymph nodes and malignant soft tissue tumors, containing tumor cells with scanty or no obvious light microscopic features indicative of their differentiation, were assessed by a panel of six cytopathologists. Their diagnoses were recorded and then compared with the definitive diagnosis(More)
Sweat gland carcinomas are rare skin tumours and little is known about their etiology and molecular basis. In this study, we analyzed p53 mutations in 16 sweat gland carcinomas with different histologic types, including 2 spiradenocarcinomas, 1 composed adnexal carcinoma, 5 porocarcinomas, 2 eccrine hidradenocarcinomas, 2 syringocystadenocarcinomas, 1(More)
We report a case of the papillary tubular adenoma (PTA) with histological features of differentiation toward secretory and ductal portions of the eccrine gland (papillary eccrine adenoma). The papillary eccrine adenoma (PEA) is a rare benign adnexal neoplasm of the skin characterised by confined growth; however, in some cases it may present a locally(More)
We examined immunohistochemically 135 cases of HD (4, lymphocytic predominance (LP); 34, mixed cellularity (MC); 90, nodular sclerosis (NS) and 7, lymphocytic depletion (LD) for the presence of EBV latent membrane protein (LMP). Ten patients were younger than 14 years, 55 were young adults (15-34 years), 45 were 35-49-years old and 26 were older than 50(More)