Received April 28, 1998; revisions received July 30, 1998, and August 25, 1998; accepted August 25, 1998. BACKGROUND. Basaloid squamous cell carcinoma (BSCC) is a high grade, aggressive variant of squamous cell carcinoma with a predilection for the larynx, hypopharynx, tonsils, and base of the tongue. To the authors’ knowledge, BSCC originating in the nasal cavity and paranasal sinuses rarely h...

We report the first cytogenetic analysis of a leiomyosarcoma of the sinonasal tract, a rare neoplasm. Karyotypic analysis showed near-triploid and near-tetraploid modal chromosome numbers with extensive structural and numerical aberrations. Three consistent structural changes, including i(6p), der(10)ins(10;1)(q26;q23q44), and der(12)t(1;12)(q11;q24) were observed in most cells. A der(11)t(11;?...

Primitive Myxoid Mesenchymal Tumor of Infancy (PMMTI) is a recently recognized locally aggressive myofibroblastic tumor. It is a low- to intermediate-grade fibroblastic malignancy with a high local recurrence rate but low metastatic potential and is composed of primitive spindled cells in a myxoid background. We present the eleventh reported case of PMMTI, occurring in the sinonasal tract of a ...

Tumour involving the sinonasal tract account for only 1% of all malignancies. The large majority tumours affecting are mainly primary neoplasm or from direct extension adjacent region; metastatic tumour extremely rare. Most metastases originate carcinoma inferior to clavicle, including renal, breast, lung, and prostate. incidence sphenoid sinus even We describe a rare case FTC tract, mimicking ...

INTRODUCTION Cerebrospinal fluid (CSF) leaks may arise as a complication of endoscopic sinus surgery, trauma, or hydrocephalus, or they may occur spontaneously without any identifiable cause. Despite general agreement that CSF leaks should not be left untreated, their initial management, the surgical indications, and the technique of repair are controversial. OBJECTIVE We undertook this study...

Abstract Biphenotypic sinonasal sarcoma (BSNS) is a rare malignant tumour of the upper nasal cavity and ethmoid sinuses that presents predominantly in middle aged female patients show characteristic infiltrative hypercellular proliferation spindle cells demonstrate specific immunoreactivity. We present three cases with BSNS had different presenting complaints, either or orbital problems, underw...