Perianal Paget's disease is rare. Unlike Paget's disease of the nipple, which is always associated with a subjacent breast adenocarcinoma, perianal Paget's disease is not always associated with a subjacent or visceral malignancy. The treatment recommendation in nearly all reported cases has been surgical excision. Radiation therapy is seldom used as a curative treatment. A case of perianal Paget's disease is described in whom radiation therapy was used with a curative intent after four unsuccessful surgical resections.
Subcutaneous calcification as a complication of chest wall irradiation has only been described once before in the literature. Six patients who developed heavy calcification of soft tissue following chest wall and breast irradiation are described here, and relevant literature is reviewed.
Primary lymphoma of the bladder is uncommon. Less than 75 cases have been reported so far in the literature. Two further cases are reported here and relevant literature is reviewed.
Three patients with extramedullary plasmacytoma of the lung are described, one of whom also had cervical lymph node metastasis, with the production of an M‐protein. The production of M‐protein normalized after successful treatment of the localized disease. In all three patients, the disease was locally controlled with radiation therapy, but it became generalized from 6 months to less than 3 years of the initial presentation.
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