A case of recurrent and metastatic hemangiopericytoma of the left thigh is presented. The following conclusions as to clinical and pathologic features, with special reference to the malignant potential and recurrence rate of this tumor, and the results of various forms of treatment have been drawn from a comprehensive review of 224 cases collected from the literature: 1. Hemangiopericytoma is highly malignant over a lifetime in about 50% of all cases treated; 2. The recurrence rate varies with the particular organ‐system involved, with a recurrence rate of 80% for tumors within the central nervous system, compared to a rate of 50.5% for the musculoskeletal system. Primary hemangiopericytoma of the lung and mediastinum distinguishes itself by early recurrence—36.3% recurring within one year; 3. Wide surgical excision is the treatment of choice; 4. The tumor is relatively radioresistant; 5. If conservative treatment is under consideration in an attempt to avoid amputation, adjunctive measures, such as regional perfusion with tumoricidal drugs, are in dire need of future clinical investigation.

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Rupture of a rectus abdominis muscle is by no means uncommon in women during parturition, but in the male it is indeed a rarity. A male, aged 60 years, descending from a railway wagon missed the step and alighted sharply on his heels after a violent effort to regain his equilibrium. No pain was experienced and he continued his work. By evening he discovered a considerable swelling in the lower part of the abdomen but it was of so little moment that he only sought advice after it had persisted during four days.

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