Abdominal wall endometriosis is a type of cutaneous endometriosis arising around a surgical scar, mainly as a result of cesarean section. We describe 2 patients: a 29-year-old female with a firm 45×35 mm tumor on the superior margin of her vertical cesarean scar and a 31-year-old female with a firm 50×50 mm subcutaneous tumor near her transverse cesarean scar. The diagnoses were confirmed histopathologically in both patients. We reviewed the recent Japanese literature and found reports that the surgical resection of abdominal wall endometriosis often requires excising the involved underlying fascia, muscle and also peritoneum. Before planning such an operation, careful preoperative examination is necessary to evaluate the extent of tumor involvement, especially when the lesion arises on the midline of the abdomen.
An 87-year-old male was referred to us for resection of a hyperkeratotic nodule on his cheek. The histological specimen revealed irritated hyperkeratotic seborrheic keratosis with an infestation of Sarcoptes scabiei hominis in its horny layer. This was the first sign of his scabies, which was already distributed over his fingers and groin. Keratotic skin lesions may serve as a reservoir for Sarcoptes scabiei hominis, making standard scabies treatment ineffective.