The syringocele is a rare deformity which usually is asymptomatic. Of acquired or congenital etiology, it can be classified in four different morphological types: simple, perforate, imperforate and ruptured. The most frequent treatment is the marsupialization of the syringocele by endoscopic surgery, leaving a broad opening of the cavity to the urethra. Some authors recommend an open surgery excision, specially in the presence of an abscess. The laparoscopic approach becomes a minimally invasive alternative with good therapeutically outcome. In the incidentally discovered asymptomatic patients, an expectant approach is the correct approach.

Inverted papillomas are rare tumours representing about 2.2% of all urothelial tumours (benign or malignant). Inverted papillomas are predominantly seen in the bladder but these tumours have also been described in other locations, all over the urinary tract. The authors report six additional cases of such tumours describing the individual characteristics of each case, presenting symptoms, treatment employed and follow up available. A review of the literature relative to aetiology, clinical signs and symptoms, diagnostic criteria, treatment options and outcome has also been carried out.

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Solitary fibrous tumour is a well defined pathological entity originally described as a tumour of the pleura, but the occurrence of this neoplasm has increasingly been described at other sites. At present the development of these tumours is recognized as possible in virtually all anatomical sites. The rarity of this type of pathology has not allowed up to the present time clarification of the histogenesis, clinical behaviour, treatment and prognosis of these tumours. Differential diagnosis becomes important, especially in extra-thoracic sites so as not to mistake them for much more aggressive mesenquimal tumours. Two additional cases of this neoplasm are presented, one of them responsible for obstructive uropathy, accidentally found in a patient suffering renal trauma. The second tumour was located in the spermatic cord. A review of the theme is presented based on the available literature.

Lupus mastitis is an uncommon entity which can easily mimic other breast conditions. The rarity of this disease demands a high degree of suspicion.