Cistoadenoma papilar oncocítico de glándula parótida: caso clínico / Papillary oncocytic cystoadenoma of the parotid gland: case report

RESUMEN El cistoadenoma es un tumor epitelial benigno raro de glándulas salivales, de crecimiento lento y asintomático, que forma grandes masas uni o multiloculares con desarrollo papilar intraluminal. Si bien es más frecuente en glándulas salivales menores, se ha destacado lo inusual de la lesión en glándulas salivales mayores. Se presenta el caso de una mujer de 60 años, quien consultó por una masa indolora, blanda y de consistencia quistica en glándula parótida derecha, de crecimiento lento y progresivo. Su evolución fue de varios meses con piel de la zona intacta. Se realizó parotidectomia superficial. El examen histopatológico demostró cistoadenoma papilar oncocitico, tumor que ha sido destacado por su infrecuencia, y con una manifestación en parótida sumamente rara y de variados patrones histológicos. Su reconocimiento es trascendente para el profesional en casos como el que se presenta, pues su diagnóstico diferencial incluye lesiones con aspecto clínico similar y en algunos casos comportamiento agresivo.

ABSTRACT The cystadenoma is a rare benign epithelial tumor of salivary glands, characterized by slow growing and asymptomatic presentation, forming large uni or multilocular masses with intraluminal papillary development. Although it is more frequent in minor salivary glands, it has been emphasized the unusual of the major salivary glands affection. We present the case of a 60-year-old woman consulting for a painless, soft mass with cystic consistency in the right parotid gland, slow and progressive growing. The tumor evolved for several months keeping the skin of the area intact. A superficial parotidectomy was performed. Histopathological examination demonstrated a papillary oncocytic cystadenoma, a tumor that has been noted for its low frequency, and with extremely rare parotid manifestation and varied histological patterns. Its recognition is relevant for the professional in cases such as the one presented, since its differential diagnosis includes lesions with similar clinical appearance and in some cases aggressive behavior.

Correlación entre los hallazgos del ultrasonido doppler pélvico-trasvaginal: con la anatomía patológica: en tumores de ovario / Correlation between transvaginal color doppler and histologic diagnosis: in ovarian tumors

Correlacionar los hallazgos del ultrasonido doppler pélvico-transvaginal con el congelado y la biopsia definitiva en pacientes con tumores de ovario que acuden al Hospital General del Este "Dr. Domingo Luciani" octubre 2007-2008. Se incluyeron 33 pacientes entre 18-70 años con tumores de ovario. Se les realizó ultrasonido Doppler pélvico-transveginal previa intervención quirúrgica indicada para cada patología. Se les realizó corte congelado y biopsia definitiva y éstos se compararon posteriormente con los resultados del ultrasonido. Un 66% fueron tumores benignos, el cistoadenoma seroso fue el más frecuente (36.3%), 33.3% fueron malignos, con 27.2% para adenocarcinoma. La sensibilidad del sistema de puntuación para masas ováricas fue del 100% y 95% de especificidad. El índice de Resistencia (IR), Indice de Pulsatilidad (IP) y la Velocidad Pico Sistólica (VPS), presentaron sensibilidad de 89%, 100% y 90% con especificidad de 95%, 85% y 91% respectivamente. El corte congelado presentó concordancia en el 100% de los casos con la biopsia definitiva. El ultrasonido pélvico transvaginal con efecto Doppler resultó tener alta sensibilidad y especificidad para la diferenciación de tumores benignos y malignos de ovario.

To corelationate finding of transvaginal color Doppler with frozen section and definitive biopsy in patients with ovarian neoplasms attended at Hospital General del Este "Dr. Domingo Luciani" Octubre 2007-2008. There were included 33 patients with ages between 18-70 years old. It was performed a pelvic-transvaginal Doppler before the surgical exploration. There were performed frozen sectin and definitive biopsy and these results were compared with the ultrasound findings. A 66% were beningn neoplasms: serous cystic adenoma (36.3%) malign, with a 27.2% of adenocarcinoma. Sensitivity was 100% and specifity 95%. Resistence Index, Pulsatility Index and Systolic Velocity, had a sensitivity of 89%, 100% and 90% with a specificity of 95%, 85% and 91% repectively. Frozen section and definitive biopsy were 100% concordant. Pelvic-transvaginal Doppler in our study have high sensitivity and specifity in ovarian's tumors.

Cystadenoma: a rare tumor originated in minor salivary gland / Cistadenoma: um tumor raro em glândula salivar menor

Cystadenoma of salivary glands is an uncommon benign neoplasm that presents intraluminal papillary projections. The authors describe one case of cystadenoma located in the buccal mucosa and highlight its histomorphological features and differential diagnosis.

O cistadenoma de glândula salivar é uma neoplasia benigna incomum, que exibe projeções papilíferas intraluminais. Os autores descrevem um caso de cistadenoma localizado na mucosa jugal, discutindo os aspectos histomorfológicos e o diagnóstico diferencial desse tumor.

Solid and cystic epithelial neoplasm of pancreas with metastasis: a report of a highly unusual case

Solid and cystic papillary epithelial neoplasms of the pancreas are uncommon tumors occurring predominantly in young women. These tumors have excellent prognosis and after complete surgical resection, more that 95% patients are cured. Occasionally, they invade the surrounding pancreatic parenchyma. These tumors can recur even many years after resection, so long term follow up is essential. Very few cases metastasize. We present a case of a middle aged woman with metastases to liver and omentum

Aspiration cytology, histology and hormone status in solid and cystic papillary tumor of pancreas--report of three cases.

Solid and cystic papillary tumor of pancreas (SCPT) are rare tumors. Of the well described cases 95% have occurred in women of reproductive age, suggesting a role of hormonal factors in the pathogenesis of this tumor. Only few studies evaluating estrogen and progesterone receptor status have found it to be positive. Cytohistocorrelation and immunohistochemistry for estrogen (ER) and progesterone (PR) receptors of three such cases are reported here. All three were diagnosed by fine needle aspiration cytology (FNAC) and showed cytoplasmic positivity for ER and PR receptors. May-Grunwald Giemsa, Papanicolaou and hematoxylin and eosin stained slides were evaluated for cytology and histopathology. Unstained methanol fixed slides were used for immunohistochemistry. The cytoplasmic staining of ER and PR receptors cannot be underestimated, as shown by Carbone A et al which represents ERII receptors. This study confirms the presence of ER and PR receptors in these tumors and highlights the already established cytological features.

Solid--cystic papillary tumor of pancreas.

A case of Solid and Cystic Papillary Epithelial Tumor of Pancreas displaying low grade malignancy occurring in a 38 years old female is presented. It is a rare condition and could be diagnosed histopathologically after complete excision.

Tumours and tumour-like conditions of the para-testicular region--a study of morphological features.

Twenty two patients with tumours or tumour-like conditions of the para-testicular region (PTR) were diagnosed over a 5 year period. Of these, 16 (73%) were benign with only one true neoplasm (papillary cystadenoma). The tumour-like conditions were comprised of 6 cases of adenomatous hyperplasia of epididymis, 4 cases of spermatic granuloma, 2 cases each of spermatocele and nodular-fibrous proliferation and one mesothelial cyst. Three patients with spermatic granuloma gave a history of trauma. No case of adenomatoid tumour was encountered. Six malignant neoplasms were diagnosed (27%) all of which were sarcomas. Five were primary to the PTR and one was a metastatic deposit from a primary leiomyoblastoma of the mesentery. Among the 5 primary sarcomas were 2 cases each of rhabdomyosarcoma and leiomyosarcoma, and 1 case of liposarcoma. The patient with leiomyoblastoma presented first with a measenteric mass which was followed a month later by a rapidly growing mass in the scrotum. Immunohistochemical staining (IHC) and Electron microscopy (EM) were done in this case. Intra-cytoplasmic myofilaments as well as desmosomes were observed. The patients ranged from 14 to 65 years of age and most presented with painless mass in the scrotum. Follow-up was not possible due to practical difficulties.

Solid and papillary neoplasm of the pancreas: a case presentation

Solid and papillary tumors of the pancreas are very rare malignancies, more commonly occurring in young women. They usually present as asymptomatic, large abdominal masses, and different from the most common neoplasm of the pancreas, which is the adenocarcinoma, these tumors have a high percentage of curability when treated by complete surgical resection. (6) For this reason, when the diagnosis of Frantz's tumor is made or strongly suspected, every attempt should be made for complete surgical excision since curability is high and radiotherapy and, or chemotherapy are of no use for its treatment

Papillary cystic neoplasm of the pancreas, diagnosed by fine needle aspiration cytology--a case report.

A case of papillary cystic neoplasm of the pancreas diagnosed by fine needle aspiration cytology is presented surgical removal of the pancreatic tumour and histological study confirmed the cytologic diagnosis. A brief review of the literature and emphasis on cytological and histological features are discussed.

Adult paratesticular tumors: report of two cases

Paratesticular tumors are uncommon tumors, most being found incidentally at autopsy. The most common benign paratesticular tumor is the adenomatoid tumor. A somewhat less frequent benign paratesticular tumor, papillary cystadenoma, accounts for approximately 33 percent of all the primary epididymal tumors and is frequently seen in patients with Von Hippel-Lindau disease. Malignant tumors are rare. Of these, rhabdomyosarcoma is the most frequent. Seen almost exclusively in the pediatric population, paratesticular rhabdomyosarcomas account for 7 percent of childhood rhabdomyosarcomas. We describe two cases of paratesticular tumors in adults: a papillary cystadenoma of the epididymis in a 72-year old male, and an incidental rhabdomyosarcoma in a 49-year old male