OBJECTIVE To describe the histopathological pattern of skin diseases in patients from the western region of Saudi Arabia and to compare this with previously published data from other regions in Saudi Arabia and worldwide. METHODS A retrospective review of all skin biopsies received and reported by the Department of Pathology, King Abdulaziz University Hospital, Jeddah, Kingdom of Saudi Arabi...

Dear Editor, Lynch syndrome (LS) is caused by a germline mutation in one of the mismatch repair (MMR) genes. Individuals with LS have an increased risk developing colorectal and many other tumours including skin tumours.1 Sebaceous neoplasms keratoacanthomas are associated LS, also known as Muir-Torre syndrome. For cutaneous squamous cell carcinoma (SCC), association has been suggested.

BACKGROUND Unlike T-cell neoplasms, B-cell lymphoproliferative disorders have a limited clinical spectrum of skin involvement. Cutaneous B-cell neoplasms mimicking rosacea or rhinophyma are rare. OBSERVATIONS We described 12 patients with B-cell lymphoproliferative neoplasms presenting with a facial eruption clinically mimicking rosacea or rhinophyma. Eleven patients were women; ages ranged f...

Malignant neoplasms are one of the most dangerous diseases. Within framework well-established Theory Porous Media (TPM), a multi-constituent model is derived. The mathematically formulated by set coupled partial differential equations which solved within well-known finite-element method. general TPM applied to basal-cell carcinoma in avascular skin and representative numerical examples show cap...

Basal cell carcinoma is a malignant epithelial neoplasm of the skin and most common human cancer. It generally associated with good prognosis. In this case report, giant basal nodulo-ulcerative type showing wide ulceration marginal multiple small nodules, presented. was trapezoidal in shape, having dimensions 7 cm at greatest width, 6 vertically different anterior posterior margin dimensions, 5...

BACKGROUND The subtype distribution of lymphoid neoplasms in Southwest China was analyzed according to WHO classifications. This study aims to analyze subtype distribution of lymphomas in southwest China. METHODS Lymphoid neoplasms diagnosed within 9 years in a single institution in Southwest China were analyzed according to the WHO classification. RESULTS From January 2000 to December 2008...

Zosteriform metastasis is a rare clinical distribution from spreading neoplasms of every organ to the skin. Tumors most often arise from a n internal o r hematologic malignancy. W e report a 69-year-old man, a known case of malignant melanoma of the left heel. In this case, multiple red-brown metastatic nodules appeared four months after diagnosis. Distribution of metastatic lesions resemb...

In Spring 2011, 200 adult white sucker were collected in four areas of the St. Louis River area of concern (AOC), located in Minnesota and Wisconsin, USA. The areas included the upper AOC as a reference area, the upper estuary, St. Louis Bay and Superior Bay. Grossly visible abnormalities were documented and preserved for microscopic analyses, as were five to eight representative pieces of live...

Proliferating trichilemmal tumors (PTTs) are benign adnexal skin neoplasms that arise from the outer root sheath of the hair follicle. These tumors are most commonly observed on the scalp and occur, most of the time, in elderly women. Malignant transformation of these neoplasms is a rare event; less than 50 cases have been reported in the English medical literature. We present the case of a 39-...