This is the first description and documentation of an extremely rare developmental anomaly of the pharyngeal apparatus in a 15‐year‐old female. The clinical, radiological, histological, and anatomical findings indicated that the anomaly originated in the pharyngeal fourth pouch. It presented as a recurrent lateral neck abscess which was due to a paratracheal sinus. This sinus penetrated the larynx and after a translaryngeal course ended in the pyriform sinus. It was caudad to the superior laryngeal nerve nnd external to the recurrent laryngeal nerve. Its penetration into the larynx at the cricothyroid joint region could serve as a useful surgical landmark.

A case report of epithelioid adrenal angiosarcoma is presented. Tumor cells showed expression of cytokeratin, Factor VIII‐related antigen, Ulex europaeus agglutinin‐I, and vimentin. The patient also was found to have mesenteric fibromatosis (abdominal desmoid tumor) and an elevated serum level of estradiol. The authors discuss the unique appearance of these rare tumors, their relationship to hyperestrinism, and review the recent data in the literature showing cytokeratin expression by malignant epithelioid vascular tumors.

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A case of Ewing's Sarcoma of the thumb is described. Four years after a fracture of the first metacarpal, followed by a series of repeated traumata to the area, a tumour was discovered. According to Ewing's criteria of trauma induced malignancy, this case is highly suggestive to have been caused by trauma.

Three cases of leiomyosarcoma of the rectum are reported. The first patient underwent palliative surgery and died 18 months after diagnosis; local radiotherapy was not effective and chemotherapy failed as well. The second patient underwent radical surgical treatment but monetheless the tumor recurred and the patient died 37 months after diagnosis. The third patient underwent radical surgery for a tumor that was in an early stage, has been followed for several months without evidence of disease. Review of the literature indicates that leiomyosarcoma of the rectum is the most malignant sarcoma of the gastrointestinal tract, and has a 20 per cent five-year survival rate. Even radical surgical treatment yields disappointing results. Following localized operations, recurrences appear in most cases, and this treatment is not recommended. Should an effective chemotherapeutic combination be found, chemotherapy as an adjuvant to surgery will probably be indicated.