[Microhematuria secondary to mucocele and appendicular cystoadenoma]. / Microhematuria secundaria a mucocele y cistoadenoma apendicular.

Appendiceal mucocele is a rare entity consisting of cystic dilatation of the appendix as a result of increased mucus production. Most cases are related to the presence of a cystadenoma. This appendiceal neoplasm is frequently associated with other extraintestinal and colonic tumors and therefore adequate abdominal examination is necessary. The clinical presentation is nonspecific and varies from asymptomatic forms to abdominal discomfort and, less frequently, to urological manifestations. We describe the case of a woman with hematuria associated with an appendiceal mucocele. Only a few cases have been reported in the medical literature. The treatment of choice of cystadenoma is surgery and simple mucocele cannot be macroscopically differentiated from cystadenoma and cystadenocarcinoma. Survival in patients with appendiceal cystadenoma is excellent. The 5-year survival rate is reduced by at least half in patients with cystadenocarcinoma associated with pseudomyxoma peritonei.

[Histiocytoid hemangioma of the epididymis. A very unusual entity]. / Hemangioma histiocitoide de epidídimo. Una entidad de gran rareza.

The presence of vascular origin tumor in the epididymis and testicle, are today considered of low frequency. We report a case of histiocytoid (epithelioid) hemangioma of the epididymis. Its differential diagnosis with the adenomatoid tumor, is discussed.

[Multilocular cyst of the kidney: clinico-pathologic considerations]. / Quiste multilocular renal: consideraciones clínico-patológicas.

Multilocular Renal Cyst is a variety contained within the Spectrum of Renal Embryonic Tumors, presenting much confusion relating to its terminology, histology, clinical aspects, etc. We have carried out a review of this subject through bibliographical compilation of the cases published between 1976-86, and close analysis of the series thus far published. The diagnostic criteria described by Boggs and Kimmeslstiels in 1956, which classify this entity separate from other varieties of R.E.T. and similar ones. This pathological state can be seen in both children and adults, and it is characterized by its unusual appearance, clinical silent in the adults and in the child it appears as an abdominal mass. This pathology lacks specific diagnostic tests as well as the assistance rendered by clinical, radiological or ultrasound studies, it will depend on a correct preoperative diagnosis, an extremely difficult task to achieve, or on a diagnostic approximation geared to avoid in the child population the implementation of coadjuvant measures to surgery that will no doubt give rise to unwanted situations in the long run. The treatment of this pathology is strictly surgical and must be preceded by an extremely conservative approach. Tumorectomy or Partial Nephrectomy is curative and sufficient. From the anatomopathological study of the surgical sample, the correct diagnosis may be inferred.

[Mucocele of the frontal sinus simulating metastasis of follicular thyroid carcinoma in an 131I scan]. / Mucocele del seno frontal simulando metástasis de carcinoma folicular de tiroides en un rastreo con 131I.

The 131I scan is the preferred test in the follow-up of differentiated thyroid cancer patients although the many unusual circumstances of radioiodine uptake that can provide false positive results must be identified. We present the case of a woman who had undergone a thyroidectomy and was being treated for follicular carcinoma with an ablative dose os radioiodine whose pre- and post-treatment scans only revealed post-surgical residual thyroid tissues. A total body scan with 131I performed at one year demonstrated the success of the ablation. However, a left supra-orbital pathological deposit was observed during a subsequent routine 131I scan. The thyroglobulin serum level was below the sensitivity level for the assay (< 1 ng/ml) and the serum antibodies against thyroglobulin were not detected. A simple x-ray and bone scintigraphy were inconclusive. The CT and MRI revealed the presence of a mucocele in the left frontal sinus which was confirmed through histological examination. The possibility of a false positive results in an 131I scan must always be kept in mind, especially in the presence of atypical uptakes and undetectable thyroglobulin serum levels. As far as we know, only one similar case has been published previously.

[Histochemical diagnosis in pediatric rectal suction biopsies (author's transl)]. / Diagnóstico histoquímico en biopsias rectales por succión pediátricas.

Between March 1972 and Dec. 1974 532 rectal suction biopsies were obtained from 238 children and histochemical processed. Slight haemorrhage was observed in three. Indications were :1) Group A, 185 suspected aganglionism (AChE. and DPNH) activities were studied). 2) Group B, 7 Neurolipidoses (Red-oil-o) and 3) Group C, Post-operative control in 10 aganglionic patients (AChE, DPNH). Aganglionism was confirmed in 60 cases (25.2%) of Group A [AChE (+), DPNH (-)] although there were five false negatives (8.3%). Lipidosis was confirmed in one case of Group B. Four patients in Group C were AChE and DPNH (+). Results are discussed, and this technique recommended taking in mind its minimal morbidity, simplicity and good results.

[A new case of multilocular cyst]. / Un nuevo caso de quiste multilocular.

We report another case of multilocular cyst of the kidney. We underscore the current theory on the neoplastic and not cystic origin of this disease entity. Attention is drawn to the confusion arising from a wide variety of terms (17) used to refer to this disease entity. Its clinical features, diagnosis, and treatment are briefly discussed. We highlight the need to follow currently available diagnostic criteria in diagnosing multilocular cyst of the kidney.