Spontaneous Infarction of fibroadenoma of the breast is very uncommon and may lead to difficulties in clinical and pathological diagnosis. Most reported cases occured in young women during pregnancy or lactation. This report describes imprint cytologic features of an infarcted fibroadenoma in a 19-year-old young woman without evidence of pregnancy. The smears revealed many individually scattered degenerated or necrotic epithelial or spindle stromal cells and naked nuclei on dirty necrotic background. A few sheets of cohesive uniform epithelial cells and a few fragments of stromal cells were also present. Most of the epithelial cells had pyknotic and hyperchromatic nuclei, however, cellular atypism such as pleomorphism, prominent nucleoli or mitosis were not present. Though the necrotic ductular and glandular outline of this case may bear a superficial resemblance to adenocarcinoma, obvious cytologic atypia or mitosis, even in the necrotic areas, were not present.
Adenocarcinoma ; Breast ; Diagnosis ; Epithelial Cells ; Female ; Fibroadenoma ; Glomerulosclerosis, Focal Segmental* ; Humans ; Infarction ; Interleukin-2* ; Lactation ; Mitosis ; Pleura ; Pregnancy ; Solitary Fibrous Tumor, Pleural ; Stromal Cells ; Young Adult

No abstract available.
Child* ; Cyclophosphamide* ; Humans ; Nephrotic Syndrome* ; Retrospective Studies*

No abstract available.
Fetus ; Humans* ; Thymus Gland*

No abstract available.
Child* ; Cytarabine* ; Cytosine* ; Humans ; Leukemia*

No abstract available.
Fosinopril* ; Humans ; Hypertension*

This study was performed to evaluate the effect of aging and thermal cycling on the biaxial flexure strength of four commercially available veneering resin composites for crown(Dentacolor : DC, Artglass : AG, Esternia : ET and Targis : TG). Disc specimens were fabricated in a teflon mold giving 12mm in diameter and 1mm in thickness. All samples were divided into 4groups. Group 1 was dried in a dessicator at 25degrees C for 30 days. Group 2 was immersed in distilled water at 37degrees C for 30 days. Group 3 was immersed in distilled water at 65degrees C for 30 days. Group 4 was subjected to 10,000 thermal cycles between 5degrees C and 55degrees C, and the immersion time in each bath was 15 seconds per cycle. Biaxial flexure test was conducted using the ball-on-three-ball method at the cross head speed of 0.5mm/min and fracture surfaces were observed with scanning electoron microscope. The results obtained were summarized as follows ; 1. Weibull modulus values, except for the AG group, decreased after thermal cycling treatment. 2. Biaxial flexure strength values of aging group at 37degrees C were th lowest in all sample groups. Except for the DC group, strength values were significntly decreased for the drying group. 3. After thermal cycling test, the highest value of biaxial flexure strength of 188.8 MPa was observed in the ET group and the lowest value of 73.2 MPa was observed in the DC group. The strength values showed the significant differences in each group (p<0.05). 4. Observation of surfaces after thermal cycling test revealed the ditching in the part f surrounding large fillers.
Aging* ; Baths ; Crowns* ; Fungi ; Head ; Immersion ; Polytetrafluoroethylene ; Water

No abstract available.
Child* ; Glomerulonephritis, Membranoproliferative* ; Humans

No abstract available.
Cleidocranial Dysplasia

The clinical data of 27 patiets with hypophosphatemic rickets treated with phosphate and 1alpha-hydroxyvitamin D were analysed retrospectively. The median age at diagnosis was 4 years, and the main clinical manifestations were bowleg and short stature. Among total 24 families, 5 families (21%) had X-linked dominant mode of inheritance, 1 family (4%) had autosomal dominant mode and 17 families (71%) had no family history, The serum phosphorus concentration rose from initial value of 2.7+/-0.13mg/dl to 3.5+/-0.19mg/dl. The serum alkaline phosphatase was reduced from 871+/-63IU/L to 393+/-41IU/L. Healing of rickets was demonstrated by radiography. Patients treated for at least two years before the onset of puberty had an increase in the mean height SD score from -1.58 to -0.79. Orthopedic surgeries for severe lower extremity deformity were performed in 11 patients, of whom 8(73%) were dignosed over 5 years of age. Complications of therapy were as follows; 12 patients (44%) developed more than one episode of hypercalciuria, 5 patients (19%) developed more than one episode of hypercalcemia, and nephrocalcinosis was noted in 5(33%) out of 15 patients by renal ultrasound. The group with nephrocalcinosis had a higher incidence of hypercalemic episodes than the group without nephrocalcinosis. In conclusion, treatment of hypophosphatemic rickets results in healing of rickets and acceleration of growth, and we must evaluate complications of therapy such as hypercalcemia and nephrocalcinosis.
Acceleration ; Adolescent ; Alkaline Phosphatase ; Congenital Abnormalities ; Diagnosis ; Humans ; Hypercalcemia ; Hypercalciuria ; Incidence ; Lower Extremity ; Nephrocalcinosis ; Orthopedics ; Phosphorus ; Puberty ; Radiography ; Retrospective Studies ; Rickets ; Rickets, Hypophosphatemic* ; Ultrasonography ; Wills

Ancient (degenerated) schwannomas are benign tumors that display pronounced degenerative changes including cyst formation, calcification, hemorrhage, and hyaliniz ation. The tumors are usually infiltrated by large numbers of inflammatory cells such as neutrophils, lymphocytes, siderophages, and histiocytes. They are located in deep locations such as the retroperitoneum and must be differentiated from malignant soft tissue tumors because spindle cells with nuclear atypia may be present in the fine needle aspiration biopsy. The cytologic findings of two cases of ancient schwannoma occurring in posterior mediastinum and retroperitoneum, respectively, are described. Computerized tomographic findings of both cases showed changes of cystic degeneration or necrosis. A case occurred in retroperitoneum revealed features of destruction of vertebral body to suggest a malignant soft tussue tumor radiologically. The cytologic findings of aspiration biopsy of both tumors revealed that the tumor cells were spindle in shape with elongated nuclei. Some of tumor cells were arranged in a palisading fashion. Cell structures that resemble the Verocay bodies were observed. Some of the tumor cells showed pleomorphic bizarre nuclei, but no mitotic activity or chromatin clumping was seen. Inflammatory cells, siderophages and histiocytes were scattered in fibrillar material. These cytologic findings are important in the diagnosis of ancient schwannoma and in the differentiation of this tumor from the malignant spindle cell tumor.
Biopsy ; Biopsy, Fine-Needle ; Biopsy, Needle ; Child* ; Chromatin ; Diagnosis ; Hemorrhage ; Histiocytes ; Humans ; Lymphocytes ; Mediastinum ; Methylprednisolone* ; Necrosis ; Nephrotic Syndrome* ; Neurilemmoma ; Neutrophils