[Glomus tumours: morbid-anatomical analysis of 58 cases, especially infiltrated forms (author's transl)].

Analysis of 58 glomus tumours revealed a higher incidence among males. The upper limbs were the most frequent site. The tumour is usually small, lies in subcutaneous tissue, occasionally subungual, and is often very painful. There may be more than one tumour. Most of the tumours are encapsulated and of the angiomatous type. Cases with predominantly vessels of type I (after Masson) correspond to the so-called angiomyoma of Schumacher. This form of the tumour is frequently located in the lower limbs. In three younger patients infiltrating soft-tissue tumours were found in the lower limbs. In all three histological examination revealed non-encapsulated, angiomatous glomus tumour, type angiomyoma. There were no signs of malignancy and no metastases. Even though glomus tumours are classified among the benign tumours, there are non-encapsulated, angiomatous forms with a tendency to local infiltration and local recurrences. Clinically they are thus semi-malignant.