Nasal eosinophilic angiocentric fibrosis with IgG4-positive plasma cell infiltration.

INTRODUCTION: Eosinophilic angiocentric fibrosis (EAF) is a rare lesion that predominantly affects the upper respiratory tract. Its etiology is unknown and it has been recently associated with the IgG4- related disease (IgG4-RD) spectrum. To the author's knowledge, this is the sixth case report of the relationship between EAF and IgG4-RD. CASE REPORT: We report the case of a 37-year-old woman with nasal deformity and facial pain. The lesion was surgically excised. Histological examination revealed features of EAF with an IgG4/IgG plasma cell ratio ≷73% and 31 IgG4 stained cells per high power field. No clinical or radiological recurrence was detected during follow-up. Serum IgG4 quantification one year after surgery was within normal limits. DISCUSSION: The relationship between both entities may have therapeutic impact because IgG4-RD of the head and neck has a high remission rate with corticosteroids and immunosuppressive therapy. Additional reports of this infrequent disease are necessary to elucidate appropriate treatment and prognosis.

Transformación maligna secundaria de teratomas testiculares: serie de casos y revisión de la literatura / Secondary malignant transformation of testicular teratomas: Case series and literature review

Antecedentes: Los teratomas son un espectro de neoplasias que pueden sufrir una transformación maligna. En la clasificación de la Organización Mundial de la Salud (OMS) de los tumores esta entidad fue clasificada como «teratoma con malignidad de tipo somático», se definió como una neoplasia maligna de fenotipo no germinal que se origina en un teratoma. Materiales y métodos: Se presenta una serie de 9 casos de teratomas testiculares con transformación maligna secundaria. Entre enero de 1995 y diciembre de 2011 encontramos un total de 306 casos de tumores testiculares. Los tumores de células germinales mixtas fueron el tumor maligno más frecuentemente diagnosticado con un 45,7%. Resultados: El teratoma con transformación maligna secundaria representó el 2,9% de todos los tumores germinales. Cinco casos se originaron dentro de un tumor de células germinales mixtas, 2 casos de teratomas maduros y 2 de teratomas inmaduros. El componente somático maligno predominante eran los sarcomas; 2 casos de condrosarcoma, uno de rabdomiosarcoma y un caso que muestra focos de condrosarcoma y rabdomiosarcoma. El caso de osteosarcoma se destaca por su rareza. Dos casos mostraron malignidad epitelial en la forma de un adenocarcinoma y, finalmente, 2 casos eran tumores neuroectodérmicos primitivos. En el momento del diagnóstico 5 pacientes tenían metástasis. Conclusión: La transformación de los tumores de células germinales en tumores malignos de tipo somático es poco común. El componente maligno puede proceder de cualquiera de las 3 líneas germinales. Estos tumores son resistentes a la quimioterapia estándar para un tumor de células germinales, y el estadio clínico es el factor pronóstico más importante. En nuestra institución el componente maligno que apareció con mayor frecuencia fue el condrosarcoma

Background: Teratomas are a spectrum of neoplasms that can undergo malignant transformation. In the World Health Organization (WHO) classification of tumors, this entity was classified as «teratoma with somatic-type malignancy», was defined as a malignant neoplasm of non-germinal phenotype that originates in a teratoma. Materials and methods: We present a serie of nine cases of testicular teratomas with secondary malignant transformation. From January 1995 to December 2011, we found a total of 306 cases of testicular tumors. Mixed germ cell tumors were the most frequently diagnosed malignancy with 45.7%. Results: Teratoma with secondary malignant transformation, represented 2.9% of all germinal tumors. Five cases originated within a mixed germ cell tumor, two cases from mature teratomas, and two from immature teratomas. The predominante malignant somatic component were sarcomas; two cases of chondrosarcoma, one rhabdomyosarcoma, and one case showing foci of chondrosarcoma and rhabdomyosarcoma. The case of osteosarcoma is notable for its rarity. Two cases showed epithelial malignancy in the form of an adenocarcinoma, and finally, two cases were primitive neuroectodermal tumors. At the time of diagnosis, five patients had metastases. Conclusion: The transformation of germ cell tumors to somatic type malignancies is rare. The malignant component can originate from any of the three germ lines. These tumors are resistant to standard chemotherapy for a germ cell tumor and the clinical stage is the most important prognostic factor. At our institution, the malignant component that appeared most frequently was chondrosarcoma

Secondary malignant transformation of testicular teratomas: case series and literature review.

BACKGROUND: Teratomas are a spectrum of neoplasms that can undergo malignant transformation. In the World Health Organization (WHO) classification of tumors, this entity was classified as «teratoma with somatic-type malignancy¼, was defined as a malignant neoplasm of non-germinal phenotype that originates in a teratoma. MATERIALS AND METHODS: We present a serie of nine cases of testicular teratomas with secondary malignant transformation. From January 1995 to December 2011, we found a total of 306 cases of testicular tumors. Mixed germ cell tumors were the most frequently diagnosed malignancy with 45.7%. RESULTS: Teratoma with secondary malignant transformation, represented 2.9% of all germinal tumors. Five cases originated within a mixed germ cell tumor, two cases from mature teratomas, and two from immature teratomas. The predominante malignant somatic component were sarcomas; two cases of chondrosarcoma, one rhabdomyosarcoma, and one case showing foci of chondrosarcoma and rhabdomyosarcoma. The case of osteosarcoma is notable for its rarity. Two cases showed epithelial malignancy in the form of an adenocarcinoma, and finally, two cases were primitive neuroectodermal tumors. At the time of diagnosis, five patients had metastases. CONCLUSION: The transformation of germ cell tumors to somatic type malignancies is rare. The malignant component can originate from any of the three germ lines. These tumors are resistant to standard chemotherapy for a germ cell tumor and the clinical stage is the most important prognostic factor. At our institution, the malignant component that appeared most frequently was chondrosarcoma.

[Hepatic actinomycosis ; presentation a case in a diabetic patient]. / Actinomicosis hepática; presentación de un caso en un paciente diabético.

We report the case of an Hispanic female diabetic patient admitted to our hospital complaining of progressive abdominal pain, weight loss, nausea and vomiting. Work-up included an abdominal computed tomography (CT) scan which reported a large liver mass consistent with atypical abscess. Serum alpha-fetoprotein value was normal, so a fine needle aspiration biopsy of the liver was performed and the report was consistent with an actinomycosis-induced abscess. Patient was treated with intravenous and oral amoxicillin with satisfactory clinical response.

[Immunofluorescence mapping for diagnosis of congenital epidermolysis bullosa]. / Mapeo por inmunofluorescencia para el diagnóstico de epidermólisis ampollosa congénita.

The tools for diagnosis of epidermolysis bullosa have advanced greatly since Hintner's group introduced antigen mapping as a diagnostic test for this family of genodermatoses. Monoclonal or polyclonal antibodies raised against some of the specific proteins found in the epidermis and basement membrane of the epidermis have allowed 4 types of epidermolysis bullosa de be identified and all variants to be classified. When a newborn baby presents with blisters, many conditions are implicated in the differential diagnosis. Examination under an optical microscope can suggest epidermolysis bullosa, but immunofluorescence mapping and electron microscopy are required for confirmation of the diagnosis and further classification of congenital epidermolysis bullosa. This article explains the importance of immunofluorescence antigen mapping and describes the methods employed for classification and subclassification of epidermolysis bullosa.

Mapeo por inmunofluorescencia para el diagnóstico de epidermólisis ampollosa congénita / Immunofluorescence Mapping for Diagnosis of Congenital Epidermolysis Bullosa

Las herramientas para el diagnóstico en las epidermólisis ampollosas (EA) han tenido un gran avance desde que Hintner et al, introdujeron el mapeo antigénico como prueba diagnóstica en este grupo de genodermatosis. La utilización de anticuerpos monoclonales/policlonales dirigidos contra algunas de las proteínas específicas que conforman la epidermis y la membrana basal epidérmica, han servido para clasificar los 4 tipos de epidermólisis ampollosa y subclasificar todas sus variantes. Ante la presencia de un recién nacido con ampollas surgen diagnósticos diferenciales múltiples, en donde la microscopia de luz orienta el diagnostico de epidermólisis ampollosa. Sin embargo, el mapeo por inmunofluorescencia y la microscopia electrónica permiten confirmar y clasificar a las epidermólisis ampollosas congénitas. En este artículo, se explica la importancia y metodología para desarrollar la técnica de mapeo antigénico por inmunofluorescencia, con el propósito de clasificar y subclasificar las epidermólisis ampollosas (AU)

The tools for diagnosis of epidermolysis bullosa have advanced greatly since Hintner's group introduced antigen mapping as a diagnostic test for this family of genodermatoses. Monoclonal or polyclonal antibodies raised against some of the specific proteins found in the epidermis and basement membrane of the epidermis have allowed 4 types of epidermolysis bullosa de be identified and all variants to be classified. When a newborn baby presents with blisters, many conditions are implicated in the differential diagnosis. Examination under an optical microscope can suggest epidermolysis bullosa, but immunofluorescence mapping and electron microscopy are required for confirmation of the diagnosis and further classification of congenital epidermolysis bullosa. This article explains the importance of immunofluorescence antigen mapping and describes the methods employed for classification and subclassification of epidermolysis bullosa (AU)

Inadequate fine needle aspiration biopsy samples: pathologists versus other specialists.

BACKGROUND: Fine needle aspiration biopsy (FNAB) is a simple, sensitive, quick and inexpensive method in which operator experience is essential for obtaining the best results. METHODS: A descriptive study in which the aspiration biopsy cases of the Pathology and Cytopathology Service of the University Hospital of the UANL (2003-2005) were analyzed. These were divided into three study groups: Group 1, FNAB performed by a pathologist; Group 2, FNAB performed by specialists who are not pathologists, Group 3, FNAB guided by an imaging study with immediate evaluation by a pathologist. The samples were classified as adequate and inadequate for diagnosis, the organ, the size and characteristics of the lesions were taken into consideration. RESULTS: A total of 1905 FNAB were included. In Group 1: 1347 were performed of which 1242 (92.2%) were adequate and 105 (7.7%) were inadequate. Of the 237 from Group 2, 178 were adequate (75.1%) and 59 inadequate (24.8%); in Group 3 there were 321 of which 283 (88.1%) were adequate and 38 (11.8%) inadequate. A statistically significant difference was found between FNAB performed by Group 1 (p< 0.001) and the other groups. A multivariate analysis was done where the organ punctured, the study groups, the size and characteristics of the lesion by study group were compared, finding that the most important variable was the person who performed the procedure. CONCLUSION: The experience and training of the person performing the aspiration biopsy, as well as immediate evaluation of the material when it is guided, substantially reduces the number of inadequate samples, improving the sensitivity of the method as well as reducing the need for open biopsies to reach a diagnosis.

Linfoma de células T/NK extranodal tipo nasal / Extranodal natural killer/T-cell lymphoma, nasal type

No disponible

No disponible

Negative images due to MAI infection detected in Papanicolaou-stained duodenal brushing cytology.

Atypical mycobacteriosis of the duodenum was diagnosed by duodenal brush cytology in a woman with AIDS. Smears were fixed in alcohol and stained by the method of Papanicolaou. The cytological characteristics of this disease have been described previously in other cytological specimens such as imprints or fine-needle aspirations stained with Diff-Quik or Wright's stain. We found that alcohol fixation and routine Papanicolaou staining allow observation of numerous foamy and striated macrophages (pseudo-Gaucher cells), as well as negative images both within the cytoplasm of the macrophages and in the background of smears in areas of air-drying artifact. These findings should suggest the diagnosis of atypical mycobacteriosis, and special staining techniques such as PAS and Ziehl-Neelsen are useful in corroborating it. This has not been previously described.

[Quality of the Early Cervical Cancer Detection Program in the State of Nuevo León]. / Calidad del Programa de Detección Oportuna de Cáncer Cervicouterino en el estado de Nuevo León.

OBJECTIVE: To determine the quality of the Early Cervical Cancer Detection Program in the state of Nuevo León. MATERIAL AND METHODS: A random selection of 4791 cytologic reports were analyzed, emitted by the State Ministry of Health, the University Hospital and the Mexican Institute for Social Security early cervical cancer detection modules. Pap tests of women with hysterectomy, current pregnancy, menopause or positive result were excluded. Quality was measured with previously defined standards. Analysis included, besides univariate statistics, tests of significance for proportions and means. RESULTS: The quality of the program was fairly satisfactory at the level of the State. The quality of the sampling procedure was low; 39.9% of the tests contained endocervical cells. Quality of coverage was low; 15.6% were women 25+years with first time Pap test. Quality of opportunity was high; 8.5 +/- 7 weekdays between the date of the pap smear and the interpretation date. CONCLUSIONS: Strategies are needed to increase the impact of the state program, such as improving the sampling procedure and the coverage quality levels.

[Granulosa cell tumor with liver metastasis treated with partial hepatectomy and chemotherapy. Report of a case]. / Tumor de células de la granulosa metastásico a hígado tratado con hepatectomía parcial y quimioterapia. Reporte de un caso.

A patient with granulosa cell tumor recurrence 14 years after primary resection, was treated with partial hepatectomy and adjuvant chemotherapy (vinblastine, cisplatin and bleomycin). She achieved complete remission and is free of disease 18 months after treatment.