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129S chwannomas are lesions that arise from the neural sheath of peripheral nerves, autonomic nerves, or cranial nerves. Nerve sheath tumors of the head and neck region mainly involve the eighth cranial nerve with only 4% occurring in the paranasal sinuses (1, 2). Occasionally, malignant schwannomas also occur in the paranasal sinuses. Sinonasal schwannomas do not have specific radiologic findings. The tumor rarely extends intracranially or intraorbitally, and imaging features can be similar to malign neoplasms (3). Case reportA 71-year-old woman presented with a 1.5-month history of medial deviation and diplopia of the left eye. She also had nasal obstruction but did not have epistaxis. An anterior rhinoscopy and an endoscopic examination showed a solid mass at the level of the middle turbinate and the roof of the nasal cavity. A thick, mucopurulent secretion was noted. Paranasal sinus computed tomography (CT) scan showed a 5 × 3.5 × 3 cm expansile soft tissue mass in the left ethmoidal sinus extending through the left frontal sinus superiorly and the right ethmoidal sinus medially. Erosion and destruction of the left ethmoidal sinus and dehiscence of the bony cribriform plate were seen. Bone fragments were seen within the mass. The left middle turbinate could not be separated from the mass. The nasal septum was deviated to the right. There were erosions in the lamina papyracea to the left of the mass, which caused an indentation of the left medial rectus muscle (Fig. 1).Cranial magnetic resonance imaging (MRI) examination was performed to better assess intracranial extension. The lesion was hypointense on T1-weighted images and contained hypointense and hyperintense areas on T2-weighted images. There was heterogeneous enhancement after contrast injection. The left frontal bone and sinus were invaded by the tumor, but there was no dural enhancement or brain edema (Fig. 2). The differential diagnosis of the tumor included benign and malignant tumors of the sinonasal cavity such as squamous cell carcinoma, olfactory neuroblastoma, lymphoma, and schwannoma. Biopsy of the nasal mucosa revealed a schwannoma.The endoscopy-assisted tumor resection was performed under general anesthesia. During the surgery, the mass could not be separated from the middle turbinate, from which it was thought to have originated (Fig. 3), and was excised with it. There was a 2.5 × 1 cm defect in the dura at the base of the skull. The dural defect was repaired with the auricular conchal cartilage and the septal bone grafts (Fig. 4). Pathologically, the tumor was a whitish-brown soft tissue mass, rubbery in consistency. Light microscopy showed spindle-shaped undulating cells in the loose myxoid stroma. The lesion contained cellular and hypocellular regions. There was ulceration and necrosis in the superficial part of the lesion. ABSTRACT Paranasal schwannomas are uncommon lesions, representing less than 4% of all head and neck schwannomas. They give rise to nonspecific symptoms such as nasal obstruction, epistaxis, and anosmia. Imaging fe...

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We included 84 consecutive patients to our retrospective study. All patients were positive with RT-PCR. Among patients, forty seven (55.95%) were males and 37 (44.05%) were females. Their ages ranged from 21-94 and the median age 54 years. Serum D-dimer level was normal in 47 patients. D-dimer elevation was detected in 37 patients. The median D-dimer level was

ackground and aim: It is very important to distinguish benign and malignant cervical lymph nodes and to make an early diagnosis in terms of treatment and prognosis. Ultrasonography (USG) provides an idea in the diagnosis of reactive or non-reactive lymph nodes but also provides benefits in the differential diagnosis of malignant and benign. It is easily accessible, has high-resolution probes, is inexpensive, does not contain radiation, and serves as a guide in aspiration biopsy when necessary. Although fineneedle aspiration cytology (FNAC) has a high degree of sensitivity and specificity in evaluating cervical lymph nodes, in 20% of patients it may give an ambiguous report that does not contribute to treatment. In this study, ultrasonographic findings of patients with cervical LAP diagnosed with FNAC were evaluated. The value of ultrasonographic examination in diagnosing diseases was emphasized. Materials and methods: In this study, ultrasonographic findings of 178 patients diagnosed with cervical lymphadenopathy by performing FNAC were examined. Ultrasonographic findings, shape, echogenic hilum, nodal matting, L/S ratio and intranodal necrosis characteristics of cervical nodes were evaluated and compared with FNAC diagnoses. Results: It was found statistically significant between a reactive node and ultrasonographic oval shape, metastasis and L/S ratio, presence of echogenic hilus and reactive node, nodal matting finding and tuberculosis (p<0.05). Although the presence of necrosis was detected at a higher rate in metastasis and tuberculosis than lymphoma and reactive node, it was not found to be statistically significant (p>0.05). Conclusion: It is thought that B-mode ultrasonography, which has high specificity and sensitivity, is a successful imaging method and can be used frequently in the differential diagnosis of diseases in all patients presenting with cervical lymphadenopathy. In this way, unnecessary biopsy, excision and further examination examinations are prevented. Keywords: cervical lenfadenopathy; ultrasonographic findings; adults.

Wild mushroom poisoning occurs quite frequently in Turkey, usually during late summer and autumn when climatic conditions favour fungal growth. We report the MDCT findings of the liver in three children after mushroom poisoning. In all three patients, precontrast MDCT findings showed diffuse reduction of hepatic attenuation compared with the spleen. Contrast-enhanced MDCT images showed homogeneous contrast enhancement of the liver. All three patients recovered after medical treatment. A follow-up precontrast MDCT examination was performed in one patient in whom the density of the liver parenchyma had returned to normal.