PURPOSE: To illustrate frequently encountered anatomic variations on PNS computed tomography(CT) and to assess their clinical significance. MATERIALS AND METHODS: CT findings of 1523 patients, who underwent PNS CT with no history of sinus surgery, were reviewed, and prevalence of each anatomic variation and its relationship with mucociliary clearance pathway was evaluated. RESULTS: Two categories of anatomic variations were encountered. The first group included variations of the turbinates, such as concha bullosa(28.6% ), paradoxical middle turbinate(31.5%), of the uncinate process, such as medially bent or folded(36.3%), laterally bent(3.7%) or uncinate bulla(0.5%), of the ethmoidal sinus, such as Haller's ce11(28.2%), large agger nasi ce11(9.6%) or large ethmoidal bulla(23.5%) and nasal septal deviation(24. 1%), which might cause obstruction of mucociliary clearance pathway and thus give rise to secondary obstructive sinusitis. The second group included Onodi ce11(1.4%) and medial depression of the lamina papyracea (3.5%), which were not related with obstructive sinusitis. 87 cases of large agger nasi cell were associated with obstruction of nasofrontal recess. Large ethmoidal bulla(452 cases), Haller's ce11(245 cases) and true concha bullosa (25 cases) contributed to narrowing of the infundibulum. Medially bent uncinate process(220 cases), concha bullosa(157 cases), paradoxical middle turbinate(126 cases) and nasal septal deviation(93 cases) were observed in middle meatal obstruction and supreme concha (3 cases) accompanied sphenoethmoidal recess obstruction. CONCLUSION: Recognition of anatomic variations on PNS CT is important to build a treatment plan in patients with obstructive sinusitis as they may represent causes of the disease, and to avoid critical complications during functional endoscopic sinus surgery.
Anatomic Variation ; Depression ; Humans ; Mucociliary Clearance ; Prevalence ; Sinusitis ; Turbinates

No abstract available.
Prune Belly Syndrome*

We report a case of ciliated hepatic foregut cyst which was incidentally found in a 64 year-old man. The cyst, 6 cm in diameter, was unilocular, solitary and was located in the medial segment of left lobe, just below the Glisson's capsule. Microscopically, the cyst wall consisted of 4 layers; pseudostratified ciliated columnar epithelium, subepithelial loose connective tissue, smooth muscle bundles and an outermost fibrous capsule. Although cartilage or subepithelial sero-mucous glands were absent, the morphologic features of the cyst correspond with those of an incomplete form of brochogenic cyst.
Cysts

No abstract available.
Ectromelia*

A study was made on the two cases of Klinefelter's Syndrome with review of literatures Two cases revealed findings characteristic of Klinefelter's Syndrome suck as small testes, hyalinization of seminiferous tubules. azoospermia, increased urinary gonadotropin, decreased urinary 17-ketosteroid, positive sex chromatin, gynecomastia and impotence.
Azoospermia ; Erectile Dysfunction ; Gonadotropins ; Gynecomastia ; Hyalin ; Klinefelter Syndrome* ; Male ; Seminiferous Tubules ; Sex Chromatin ; Testis

No abstract available.
Paralyses, Familial Periodic*

No abstract available.
Basal Bodies*

No abstract available.
Basal Bodies*

Parathyroid hyperplasia is a pathologic finding that can be found in hyperparathyroidism. Unlike parathyroid adenoma, treatment of parathyroid hyperplasia is still quite controversial. In addition, the relative merits of two alternative surgical approaches-subtotal parathyroidectomy versus total parathyroidectomy with autotransplantation have not been clearyly elucidated. The records of 10 patients who had parathyroid hyperplaisa and who underwent parathyroid surgery at the Department of Surgery, Hanyang University Hospital, between April 1992 and April 2003 were retrospectively reviewed. The 10 patients were comprised of 3 males and 7 females. The age distribution was between 29 and 73 years. The presenting clinical manifestations were associated with bone pain in 8 patients, muscle weakness in 4, headache in 4, gastrointestinal symptoms in 3, renal symptoms in 3 and psychologic symptoms in 2. The serum parathyroid hormone level was elevated in all patients. The serum alkaline phosphatase level was elevated in seven among the ten patients. Histopathologic findings revealed chief cell hyperplasia in all patients. Postoperative transient hypocalcemia occurred in 5 patients and they were supplied with oral calcium and calcitriol for several months. There were no major complications. The results indicate that a subtotal parathyroidectomy can be performed without mortality or morbidity and provides good control of primary parathyroid hyperplasia, A total prathyroidectomy with autotransplantation can be performed without mortality or morbidity and provides good contril of secondary and tertiary parathyroid hyperplaisa.
Age Distribution ; Alkaline Phosphatase ; Autografts ; Calcitriol ; Calcium ; Female ; Headache ; Humans ; Hyperparathyroidism ; Hyperplasia* ; Hypocalcemia ; Male ; Mortality ; Muscle Weakness ; Parathyroid Hormone ; Parathyroid Neoplasms ; Parathyroidectomy ; Retrospective Studies ; Transplantation, Autologous

No abstract available.
Ectromelia*