A 40-year-old male presented with a cholesterol granuloma of the petrous apex manifesting as progressive hearing loss and tinnitus. The lesion was treated via an extradural middle cranial fossa approach employing a new procedure to establish a drainage pathway into the superior tympanic cavity which preserved his hearing. The pathway was formed by a groove 5 mm wide and deep in the anterolatera...

PURPOSE We aimed to evaluate the diagnostic accuracy of turbo spin-echo diffusion-weighted imaging (TSE-DWI) at 3 T, for cholesteatoma (CS) diagnosis, using qualitative and quantitative methods with numerical assessment of signal intensity (SI), signal intensity ratios (SIR), and apparent diffusion coefficient (ADC) values. METHODS In this retrospective study, two blinded observers independen...

Granuloma annulare is self-limiting cutaneous condition of unknown etiology, causing necrobiotic dermal and subcutaneous papules. A number of conditions have been described in association with Granuloma annulare, including lymphoma, anemia, intestinal bleeding, seronegative arthralgia, vasculitis and autoimmune thyroiditis. This manuscript, as the first report of this combination in Iran, descr...

INTRODUCTION Primary ectopic craniopharyngiomas have only rarely been reported. Craniopharyngiomas involve usually the sellar and suprasellar region, but can be originated from cell remnants of the obliterated craniopharyngeal duct or metaplastic change of andenohypophyseal cells. We present the first case of a primary ectopic frontotemporal craniopharyngioma. PRESENTATION OF CASE A 35-year o...

The association of granuloma annulare and some neoplasms is controversial. However, there is an increase in the number of case reports and relevant studies supporting the conceptof granuloma annulare being associated with certain types of hematologic neoplasms and solid tumors.Herein, we describe a 54-year-old woman with a 20-month history of generalized annular lesions that did not respond to ...