Two adults, both non-smokers, with large peripheral lung cysts, which were of long standing (12 and nine years), were found to have well differentiated mucus secreting adenocarcinomas with a bronchioloalveolar growth pattern associated with the cysts. Lobectomy is likely to have been curative in one of the cases and earlier surgery might have been so in the other. The fact that many of the repo...

Ameloblastoma, a benign epithelial odontogenic tumor, is locally aggressive. This tumor comprises about 1% of tumors and cysts arising in the jaws. It appears most commonly in the third to fifth decades and with equal frequency between sexes. Ameloblastoma prevalently occurs in the mandibular molar and the ramus areas. Recurrence frequently appears after inadequate treatment. They are usually b...

The computational model presented in this paper focuses on modeling ductal carcinoma in situ (DCIS), which is the most commonly detected preinvasive form of breast cancer. The model aims to understand the biological mechanisms and resultant growth dynamics of DCIS. The cellular automaton model based on observed phenotypic characteristics of DCIS emphasize the important role of contact inhibitio...

Visceral hemangiosarcoma were analyzed at the Department of Veterinary Pathology Faculty Medicine, University Zagreb, over a 5-year period. From total 52 tumor masses in 31 dogs, histological growth patterns (cavernous, capillary or solid) and amount supporting stroma evaluated. Additionally, sections stained with toluidine blue for purpose mast cell detection their number was determined parenc...

Histological studies were carried out with 49 specimens; 18 Biomphalaria tenagophila guaibensis, 19 B. t. and 12 occidentalis, collected in 10 municipalities the states of São Paulo Rio Grande do Sul, Brazil. The study considered histological aspects vagina, vaginal pouch penial complex. In this study, we describe, for first time, features complex tenagophila, guaibensis occidentalis. lining ep...

Figurate erythemas (FE) represent an etiopathophysiologically heterogeneous group of diseases defined by their characteristic annular erythematous skin lesions. Diagnosis is made primarily clinical examination together with histological findings; often it a diagnosis exclusion. While some authors discuss FE as reaction pattern rather than distinct entities, others identify four classic FE: eryt...

The ideal classification of basal cell carcinoma (BCC) should be able to identify subtypes which correlate with clinical behaviour and treatment requirements. Unfortunately, however, such a classification has yet to be defined. In the interim, the currently most favoured classification is one based predominantly on histological growth pattern. This classification contributes to the useful conce...

Seventeen well-characterized human lung cancer cell lines were examined for the presence of specific membrane receptors for epidermal growth factor (EGF) and nerve growth factor (NGF) as well as for the production of diffusible factors capable of stimulating soft agar growth. These cell lines represented all four major histological types of human lung cancer including small cell carcinoma of th...

Background & objective Regarding the importance of histologic examination of testicular biopsy for clinical planning of infertility, the current study was conducted to compare 2 separate histologic examination of testicular biopsy. Also, some cases with known fertility outcome were followed and their histological patterns were also compared with those of the outcome. Methods The current study...