Differential rates of proliferation and apoptosis in nasal polyps correspond to alterations in DNA spatial distribution and nuclear polarization as observed by confocal microscopy.

The study aimed to investigate the expression of p53, Bcl-2 and Ki-67 in relation to the histologic and nuclear qualitative and spatial characteristics of chronic rhinosinusitis with polyposis (CRP). Imprint smears obtained from surgically removed nasal polyps of 20 patients were studied. The polyps were classified according to their histological characteristics as: hyperplasia (simple and pronounced) and squamous metaplasia.

Long-term results of plastipore prostheses in reconstruction of the middle ear ossicular chain.

Purpose: To examine the acoustic results over a long period of time, in patients who underwent ossiculoplasty with Plastipore, and to report the percentage of prosthesis extrusion and factors related to the prognosis.

Procedures: Forty-two patients, who underwent ossiculoplasty with Plastipore, were studied. Patients were followed up for the next 14 years.

Expression of substance P, vasoactive intestinal peptide and heat shock protein 70 in nasal mucosal smears of patients with allergic rhinitis: investigation using a liquid-based method.

Objective: The aim of this study was to investigate expression of the neuropeptides substance P, vasoactive intestinal peptide and heat shock protein 70 in the nasal mucosa cells of patients with seasonal allergic rhinitis, in order to obtain more information on the pathophysiological and immunological role of these markers in allergic rhinitis.

Material And Methods: Nasal epithelium specimens obtained from 42 patients with allergic rhinitis were studied, using Shandon's Papspin liquid-based cytology method. Smears were immunostained with antibodies against substance P, vasoactive intestinal peptide and heat shock protein 70, and the results were correlated with the clinical features of seasonal allergic rhinitis.

Non-Hodgkin's lymphoma of nasal cavity and paranasal sinuses. A clinicopathological and immunohistochemical study.

Aim of this study was to investigate the clinical characteristics, management and prognosis of non-Hodgkin lymphomas of the nasal cavity and paranasal sinuses. Overall 12 patients with non-Hodgkin malignant lymphoma, at our Institute, were studied over an eight-year period from 1997 to 2005. Patients' data collected were age, sex, presenting signs and symptoms, histology, treatment, complications, and outcome.

Metallic foreign body in middle ear: an unusual cause of hearing loss.

This is a rare case report of a foreign metallic body found in the middle ear. During the use of an electric welding by a metalworker, a glowing drop of dissolved metal overrun, burning the skin of his external auditory meatus, perforated the tympanic membrane and finally was implanted around the ossicles as a foreign body. Due to difficulty of the physical examination and the moderate symptoms (hearing loss and sense of fullness), the foreign body was detected six months after the incident, by CT scanning and it was removed by a transcanal approach under general anesthesia.