Introduction: 46,XX testicular DSD is rare with incidence ~1 in 20,000 live births. Over 80–90% of cases are caused by translocation of SRY gene to X-chromosome or an autosome. Most present later in life with small testes, infertility and azoospermia. In SRY-negative cases, mutations in other genes (SOX9, NR5A1, etc) or duplications of SOX9 are implicated. Our reported case is SRY negative, presenting at birth. Case: We report a case of 1-year 4-month-old term baby with atypical genitalia at birth. External genitalia examination showed penoscrotal malformation, genital tubercle (2.5 × 1.5 cm) with chordae, single opening at perineum, and two palpable gonads within both upper labio-scrotal folds. External genital score is 8.5. Ultrasound of inguinal region and pelvis showed bilateral hypoechoic ovoid structure at bilateral inguinal region suggestive of testes, with the right testis measuring 0.4 × 0.8 cm and left testis measuring 0.4 × 0.7 cm. No mullerian structures or ovaries were visualized. Initial chromosome results (10 cells analyzed, 30 counted) reported 46, XX. Consultation with genetic pathologist and 2nd karyotype result still revealed 46, XX with FISH analysis confirming the absence of SRY. Mini-puberty screen (at 72 hours of life) showed follicle-stimulating hormone 3.5 IU/L, LH 1.72 IU/L, and testosterone 2.29 nmol/L. HCG stimulation test indicated adequate testosterone rise from 13 nmol/L (Day 1) to 29.38 nmol/L (Day 3), confirming the presence of functional Leydig cells. Serum AMH was within normal male range for age (421.3 pmol/L, 29–364 days: 235.5–1125.9). Gender is assigned as male and he recently underwent 1st stage hypospadias repair. Whole exome sequencing result is pending. Conclusion 46,XX testicular DSD, with a negative SRY, is rare, and early diagnosis at birth enables counseling for future concerns such as male infertility and hypergonadotropic hypogonadism. A multidisciplinary management (involving endocrinology, surgery/urology, and genetics) is needed to ensure understanding and emotional support.

PURPOSE: The main objective of this study was to investigate the relationship among the clinical characteristics and the frequency of T790M mutation in advanced epidermal growth factor receptor (EGFR)–mutant lung adenocarcinoma patients with acquired resistance after firstline EGFR–tyrosine kinase inhibitor (TKI) treatment. MATERIALS AND METHODS: We enrolled EGFR-mutant stage IIIB-IV lung adenocarcinoma patients, who had progressed to prior EGFR-TKI therapy, and evaluated their rebiopsy EGFR mutation status. RESULTS: A total of 205 patients were enrolled for analysis. The overall T790M mutation rate of rebiopsy was 46.3%. The T790M mutation rates among patients with exon 19 deletion mutation, exon 21 L858R point mutation, and other mutations were 55.0%, 37.3%, and 27.3%, respectively. Baseline exon 19 deletion was associated with a significantly higher frequency of T790M mutation (adjusted odds ratio, 2.14; 95% confidence interval [CI], 1.20 to 3.83; p=0.010). In the exon 19 deletion subgroup, there was a greater prevalence of T790M mutation than other exon 19 deletion subtypes in patients with the Del E746-A750 mutation (61.6% vs. 40.6%; odds ratio, 2.35; 95% CI, 1.01 to 5.49; p=0.049). The progression-free survival (PFS) of first-line TKI treatment > 11 months was also associated with a higher T790M mutation rate (54.1% vs. 39.3%; adjusted odds ratio, 1.82; 95% CI, 1.02 to 3.25; p=0.044). Patients who underwent rebiopsy at metastatic sites had more chance to harbor T790M mutation (52.6% vs. 33.8%; adjusted odds ratio, 1.97; 95% CI, 1.06 to 3.67; p=0.032). CONCLUSION: PFS of first-line EGFR-TKI, rebiopsy site, EGFR exon 19 deletion and its subtype Del E746-A750 mutation are associated with the frequency of T790M mutation.
Adenocarcinoma* ; Disease-Free Survival ; Epidermal Growth Factor* ; Exons ; Humans ; Lung Neoplasms ; Lung* ; Mutation Rate ; Odds Ratio ; Phosphotransferases ; Point Mutation ; Prevalence ; Receptor, Epidermal Growth Factor* ; Sequence Deletion

The prevalence of Enterobius vermicularis infection among preschool children was reported to be low based on a 5-year screening program in Taipei City, Taiwan. The Taipei City government intended to terminate the E. vermicularis screening program among preschool children. Thus, we were entrusted with confirming whether pinworm infections among preschool children in Taipei City had truly declined. From each of 12 administrative districts 2-3 kindergartens were randomly selected for investigation. In total, 4,349 children were examined, of which 2,537 were boys and 1,812 were girls. The cellophane tape adhered to a glass slide was used, and all examinations were done by certified medical technologists. Results indicated that the overall prevalence rate of pinworm infections was 0.62% (27/4,349). Although the infection rate was higher among boys (0.67%, 17/2,537) than in girls (0.55%, 10/1,812), no significant difference was found (chi2 = 0.399, P = 0.62). According to the administrative district, the infection rate ranged from no positive cases of E. vermicularis infection in the Xinyi, Zhongzhen, and Wanhua Districts (0%; 0/299, 0/165, and 0/358, respectively), to 0.26% (1/131) in Songshan District, with the highest rate of 1.88% (7/373) in Wenshan District. Because the overall infection rate (0.62%, 27/4,349) in the present study was unchanged compared to that (0.40%, 197/49,541) previously reported in 2005, we propose that regular pinworm screening and treatment programs should be continued in some parts of Taipei City.
Animals ; Child Day Care Centers ; Child, Preschool ; Enterobiasis/*epidemiology ; Enterobius/*isolation & purification ; Female ; Humans ; Male ; Microscopy/methods ; Prevalence ; Taiwan/epidemiology

INTRODUCTIONPrevious studies examining brain effects of duration of illness in schizophrenia have focused on either cortical or subcortical structures. Hence this study sought to elucidate the regional grey matter changes (both cortical and subcortical) and neurocognitive correlates with increased duration of illness in a large sample of patients with schizophrenia using voxel-based morphometry.

MATERIALS AND METHODSNinety patients (72 males and 18 females) with DSM-IV diagnosis of schizophrenia were recruited and assessed using magnetic resonance imaging and a battery of neuropsychological tests.

RESULTSA longer duration of illness was associated with smaller grey matter volumes in the left superior frontal gyrus, bilateral putamen, right superior temporal gyrus, right superior occipital gyrus as well as the right thalamus. No region showed increased grey matter volume above threshold with longer duration of illness. Longer duration of illness was correlated with poorer attention.

CONCLUSIONSThe grey matter reductions in different brain regions highlighted that a distributed network of cortical and subcortical regions was associated with duration of illness. This is consistent with neural models that implicate involvement of thalamo-cortical circuitry as the disruption in these neural pathways can result in specific deficits such as poorer attention. The results have implications for the understanding of brain changes in schizophrenia, and with further studies, may guide better tailored and targeted clinical management in terms of reducing the impact of duration of illness on neural substrates in schizophrenia in the future.

Adult ; Age of Onset ; Brain ; pathology ; Cognition ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Neuropsychological Tests ; Schizophrenia ; diagnosis ; physiopathology ; Schizophrenic Psychology ; Young Adult