Zenker's diverticulum arises in the posterior wall of the pharynx, above the cricopharyngeal muscle, secondary to a functional cricopharyngeal disorder. We describe our experience with the management of Zenker's diverticulum from 1985 to this day in a third-level hospital. We review clinical data from 27 patients (78% males) with a mean age of 60.4 years. The most common clinical manifestations were dysphagia, regurgitation, syalorrhea, cough, and weight loss. All cases were diagnosed using an esophagogram. A diverticulectomy with cricopharingeal myotomy was performed in 74% of patients. Complications developed in 5 cases (21%), and the recurrence rate was 4% (1 of 3 cases, where myotomy was not performed).

Mammary hamartoma is a rare nonmalignant lesion. Only 11 cases of carcinoma associated with hamartoma have been previously described in the literature. We describe a case of infiltrating ductal carcinoma (IDC) and ductal carcinoma in situ (DCIS) associated with hamartoma in a 35-year-old woman. Mammography showed the features of a typical hamartoma with suspicious microcalcifications arising in it. The patient underwent a radical modified mastectomy. It is likely that hamartoma is a coincidental finding. The identification of suspicious microcalcifications in a typical mammographic image of a hamartoma should prompt continued examination to exclude an underlying tumor.

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Performing SLNB avoids an unnecessary second surgery to study axillary lymph nodes in invasive carcinoma diagnosed after definitive histological study. In patients undergoing a mastectomy, this study requires an axillary lymphadenectomy that is not useful in up to 50% of cases. We think that in a selected group of patients with DCIS, SLNB improves tumour staging, adapts the treatment and avoids second surgery in this group of patients.

Although breast cancer, germ cell tumors and other neoplasms are known to occur in patients with Klinefelter's syndrome, adrenal carcinoma has not yet been reported in such patients. We describe a rare case of severe primary aldosteronism as the unique manifestation of a large adrenocortical carcinoma in a patient with Klinefelter's syndrome. Complete biological and hormonal evaluation was performed. Surgical treatment was successful and the patient remained asymptomatic with normal biological and hormonal values after 1 year of followup.