Xantogranuloma juvenil en limbo corneoescleral en el adulto / Juvenile xanthogranuloma of the corneoscleral limbus in adults

Caso clínico: Mujer de 25 años de edad que refería una tumoración no dolorosa amarillenta en el ojo derecho. Su agudeza visual era de la unidad. En la exploración en lámpara de hendidura se observa una masa amarilla-anaranjada localizada en el limbo superior del ojo derecho. No se observaron otras anormalidades. Discusión: Se realizó una escisión quirúrgica de la lesión y se remitió a anatomía patológica para su examen. La lesión granulomatosa mostraba células de Touton. Este hecho sugiere de forma importante el diagnóstico de xantogranuloma juvenil (JXG). La afectación ocular ocurre en el 10% de los casos de JXG (AU)

Case report: A 25-year-old woman noticed a painless yellow-orange mass on her right eye. Her visual acuity was 20/20 in both eyes, and a slit-lamp examination showed a yellow-orange mass located at the superior limbus of the right eye. No other ocular abnormalities were observed. Discussion: Surgical excision was carried out and the lesion was sent for histological examination. This showed a granulomatous lesion, rich in Touton-type giant cells, features that are strongly suggestive of juvenile xanthogranuloma (JXG). Ocular involvement occurs in 10% of cases of JXG (AU)

[Juvenile xanthogranuloma of the corneoscleral limbus in adults]. / Xantogranuloma juvenil en limbo corneoescleral en el adulto.

CASE REPORT: A 25-year-old woman noticed a painless yellow-orange mass on her right eye. Her visual acuity was 20/20 in both eyes, and a slit-lamp examination showed a yellow-orange mass located at the superior limbus of the right eye. No other ocular abnormalities were observed. DISCUSSION: Surgical excision was carried out and the lesion was sent for histological examination. This showed a granulomatous lesion, rich in Touton-type giant cells, features that are strongly suggestive of juvenile xanthogranuloma (JXG). Ocular involvement occurs in 10% of cases of JXG.

[Sertoli cell tumor of the testis: clinical pathologic varieties. Report of a case]. / Tumor testicular de células de Sertoli: variedades clínicas patológicas. A propósito de un caso.

Tumours derived from sex cords and primitive gonadal stroma account for 4% of total testicular tumours. The low frequency of Sertoli's cells tumour (SCT) and the uneven study and follow-up of patients makes analysis of this tumoral entity difficult. This paper contributes one case report of a Sertoli's giant cell tumour calcified in a 13-year old patient, and reviews the clinical aspects, clinico-pathological varieties believed to require assessment in patients with this type of disease. This type of tumour is considered benign in its biological behaviour, although some malignant forms have also been described. SCT is actually an heterogeneous tumoral pathogenic entity with regard to pathogenic and prognostic aspects. Our final conclusions show that the clinico-pathological variety, age, size and associated clinical manifestations appear to be related to the prognosis.

[Myasthenia gravis as paraneoplastic syndrome in small cell tumor of the bladder]. / Miastenia gravis como síndrome paraneoplásico en tumor vesical de células pequeñas.

Only 0.48% of vesical tumours are of the small cells epithelial type with positive neuroendocrine immunohistochemical markers, although the description of new cases is becoming increasingly common. These tumours may be associated to paraneoplastic syndromes of the endocrine and neurological types. This paper contributes one case report of a female patient diagnosed with a small cells epithelial vesical tumour associated to myasthenia gravis. The histological and histochemical features as well as the differential diagnosis with other tumours of vesical location are explained. Clinically, these entities evolve with acute haematuria and have a highly aggressive evolution. Quite frequently the tumour is associated to neuromuscular syndromes such as Lamber-Eaton's, myasthenia-like syndromes, and in rare occasions to myasthenia gravis. Different studies have reported anti-acetylcholine receptors in cells of this tumoral class that may stimulate the formation of antibodies against the neuromotor plaque. Diagnosis of this neurological syndrome and other similar ones may be attributed to early treatment and better prognosis of this tumoral entity.