Papers by Ricardo Gonzalez Campora
Medicina oral, 1997
El tumor odontogen.ico aden.omatoide (TOA) es un tumor benigno epitelial de rara aparicion.. En e... more El tumor odontogen.ico aden.omatoide (TOA) es un tumor benigno epitelial de rara aparicion.. En este trabajo se presenta un TOA localizado en el maxilar superior. Se estudian. los hallazgos clinicos, radiograficos, histologicos y terapeuticos del caso.
PubMed, Jun 1, 1996
The aim of this study was to obtain pathologic diagnosis by aspiration punction (AP) by real time... more The aim of this study was to obtain pathologic diagnosis by aspiration punction (AP) by real time lineal echoendoscopy in different lesions suspected to be malignant. AP was performed in 6 cases with a Pentax-Hitachi FG 32UA lineal echoendoscopy. Four pancreatic neoplasms, one plastic linitis and one adenopathy of the celiac trunk were observed. Malignancy was confirmed by clinical evolution or surgery. The sensitivity of malignancy diagnosis was 67%, specificity 100% and diagnostic certainly 87%. No complications were observed. In the authors' preliminary experience, aspiration punction with real time lineal echoendoscopy allowed pathological diagnosis to be performed safely and effectively with relative simplicity.
Virchows Archiv, Jun 14, 2016
In lung tumors, the association between carcinoids and high-grade neuroendocrine tumors (HGNETs) ... more In lung tumors, the association between carcinoids and high-grade neuroendocrine tumors (HGNETs) is controversial. To understand the phenotypic similarities/differences between lung carcinoids and HGNETs, we comparatively investigated the expression of three kinds of developing neural transcription factors (DNTFs: BRN2, TTF1 and ASCL1) and multiple endocrine neoplasia type 1 (MEN1) as well as RB1 and P53 using 18 carcinoids and 16 HGNETs. The DNTFs were expressed in 10 of the 18 carcinoids and in all the HGNETs, while normal neuroendocrine cells, which are considered the major cell origin of lung carcinoids and small cell carcinomas, did not express DNTFs. Both the DNTFand DNTF + carcinoids contained typical and atypical carcinoids. All the DNTFcarcinoids examined were formed in the bronchial wall. All the MEN1carcinoids examined were classified into the DNTFcarcinoids, while all the HGNETs expressed MEN1. This finding suggests that DNTF-MEN1carcinoids are unlikely to be precursors of HGNETs. Although the status of RB1 and P53 between carcinoids and HGNETs were apparently different, the DNTF + carcinoids of two male patients and one female patient revealed morphologies resembling HGNET cells and relatively high Ki67 indices. Further investigation of DNTF expression in carcinoids might provide important clues to understand the association between carcinoids and HGNETs.
Actas Urologicas Espanolas, 2000
Resumen Objetivo :El carcinosarcoma prostatico es un tumor bifasico que contiene adenocarcinoma y... more Resumen Objetivo :El carcinosarcoma prostatico es un tumor bifasico que contiene adenocarcinoma y componentes sarcomatosos reconocibles. Es una neoplasia muy poco frecuente, de la que se han comunicado menos de 40 casos. Describimos dos ejemplos adicionales que muestran carcinosarcoma en el primer material anatomopatologico (presentacion sincronica). Metodos y resultados Los pacientes tenian edades de 71 y 78 anos. El tumor prostatico primario en el Caso 1 estaba constituido por adenocarcinoma mezclado con un componente mesenquimal que mostraba focos de condrosarcoma, rabdomiosarcoma y angiosarcoma. El adenocarcinoma en el Caso 2 estaba mezclado con sarcoma fusocelular y condrosarcoma. Ambos pacientes murieron a causa de la enfermedad, tras cirugia, a los 3 y 9 meses respectivamente. Conclusion El carcinosarcoma prostatico sincronico es una neoplasia altamente maligna que puede precisar una terapia agresiva.
Annals of the Rheumatic Diseases, May 1, 1986
We describe two sisters with necrotising granulomas. The intervals between the onset of symptoms ... more We describe two sisters with necrotising granulomas. The intervals between the onset of symptoms and diagnosis were eight and nine years. The pathological findings showed necrotising granulomas in both patients, this being consistent with a diagnosis of pathergic (Wegener's) granulomatosis. The one patient that accepted treatment responded well to cyclophosphamide, though the facial lesions responded only to radiation therapy. Since the second was almost asymptomatic we conclude that relatives of patients with Wegener's disease should be investigated.
Journal of Cutaneous Pathology, Apr 12, 2017
International Journal of Surgical Pathology, Oct 30, 2015
Purpose. This article reports on a sclerosing perineal-perianal rhabdomyoma in an adult woman. A ... more Purpose. This article reports on a sclerosing perineal-perianal rhabdomyoma in an adult woman. A review of the literature disclosed no reference to this histological form of rhabdomyoma in women. Methods and Results. We describe the case of a 48-year-old woman. At physical examination, a firm nodular lesion was identified in the left lateral perianal-perineal region. Histologically, it comprised rounded and elongated muscle fibers displaying no evident atypia, within a stroma exhibiting marked sclerosis and mild lymphoid infiltrate. At immunohistochemical examination, tumor cells stained for desmin, muscle-specific actin, and myogenin. Conclusions. Skeletal muscle rhabdomyomas are rare benign tumors, generally divided into 3 major categories depending on their clinical and morphological characteristics: fetal, adult, and genital. An unusual histological variant of the genital form has recently been reported in men, characterized by the presence of predominantly mature muscle fibers and marked sclerosis. We document such a lesion in a female patient for the first time.
Revista Española de Patología, 2020
Tratado de hepatología: Tomo I, 1996, ISBN 84-472-0266-6, págs. 41-48, 1996
Tratado de hepatología: Tomo I, 1996, ISBN 84-472-0266-6, págs. 19-24, 1996
Tratado de hepatología. Tomo II, 1996, ISBN 8447202674, págs. 597-618, 1996
Revista española de oncología, 1981
Medicina cutánea ibero-latino-americana, 1984
16 cases of adenoma of the nipple are reviewed. Such a number of cases would indicate this tumor ... more 16 cases of adenoma of the nipple are reviewed. Such a number of cases would indicate this tumor is probably a more common disorder than previously recognized. Histogenetic theories and nosologic position are discussed.
Acta Cytologica, 2013
Spindle epithelial tumor with thymus-like differentiation (SETTLE) is an extremely rare type of t... more Spindle epithelial tumor with thymus-like differentiation (SETTLE) is an extremely rare type of thyroid tumor with fewer than 35 reported cases available in the literature so far, most of them having been diagnosed histologically after resection. The tumor is believed to be derived from branchial-pouch or thymic remnants, occurring in young adults, predominantly in males, with a male:female ratio 1.8:1. Case: A 14-year-old girl presented with a nodular mass in her right thyroid that had been present for 1 year. Ultrasonological study revealed a heterogeneous solid mass (2.5 × 1.5 × 1.5 cm) in the right lobe of the thyroid. Fine-needle aspiration (FNA) smears were highly cellular and comprised of predominantly dissociated uniform spindle cells with naked oval nuclei along with some aggregates and groups. Occasional islands of epithelial cells were also present. Cytologically, the spindle cells had bland nuclear chromatin, with very scanty mitotic figures. Upon examination of the FNA ...
Journal of Clinical & Experimental Oncology, 2015
Atipic axillary mass: follicular dendritic cell sarcoma within Castleman´s disease: A Case Report... more Atipic axillary mass: follicular dendritic cell sarcoma within Castleman´s disease: A Case Report and Review of Literature Follicular dendritic cell sarcoma (FDCS) is a rare neoplasm (0.4% of soft tissue sarcomas) originating from follicular dendritic cells. On the other hand, Castleman’s disease (CD) is a rare lymphoproliferative disorder first described in 1956 by Castleman et al as a benign, localized enlargement of hyperplastic lymph nodes. Castleman´s disease has been found in association with FDCS in a minority of cases, suggesting that it may represent a precursor lesion. Combination of both FDCS and unicentric CD is extremely rare.As far as we know, there are no documented cases of a follicular dendritic cell sarcoma within a hyaline-vascular Castleman´s disease localized in the axilla.There is no consensus about treatment strategy in this situation; surgical resection when possible seems to be the best option, with or without complementary radiotherapy.We present the case of a 42-year-old male with a single axillary mass identified as a FDCS in a unicentric CD in the axilla.
Revista española de oncología
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Papers by Ricardo Gonzalez Campora