dear editor-in-chief   pilomatrixoma is a benign tumor of hair follicle first described as calcifying epithelium (1). it accounts for 1% of all the benign skin tumors (2). it is a slow-growing, firm, dermal or subcutaneous neoplasm, usually measuring fewer than 3 cm in diameter. pilomatricomas are considered benign; rarely recur after surgical excision (3). however, cases of pilomatrixoma with ...

giant cell tumors (gct) are benign tumors with potential for aggressive behavior and capacity to metastasize. although rarely lethal, benign bone tumors may be associated with a substantial disturbance of the local bony architecture that can be particularly troublesome in peri-articular locations. its histogenesis remains unclear. it is characterized by a proliferation of mononuclear stromal ce...

Background: Salivary gland tumors are among malignancies that have high recurrence rate. Immune responses in salivary gland tumors have not been well elucidated. T helper type 1 (Th1) and Th2 cytokines have been reported to play a role in the outcome of head and neck cancers. Objective: To evaluate the serum levels of interferon gamma (IFN- γ), as the hallmark of Th1 cytokines, and interleukin-...

Benign follicular tumors comprise a large and heterogeneous group of neoplasms that share a common histogenesis and display morphological features resembling one or several portions of the normal hair follicle, or recapitulate part of its embryological development. Most cases present it as clinically nondescript single lesions and essentially of dermatological relevance. Occasionally, however, ...

The aim of the study was to consider the qualifications necessary for the procedure, the surgical treatment, and the long-term results. Material and methods. During the period between 1990 and 2005, twenty-five patients with benign esophageal tumors underwent treatment. Clinical symptoms, the size and localization of the tumor, and histological type were considered in cases of patients qualifie...

The aim of the study was to consider the qualifications necessary for the procedure, the surgical treatment, and the long-term results. Material and methods. During the period between 1990 and 2005, twenty-five patients with benign esophageal tumors underwent treatment. Clinical symptoms, the size and localization of the tumor, and histological type were considered in cases of patients qualifie...