Oriented biopsies are fragments of tissue (usually fusiform) that are positioned relative to the tumor in a way to favor the observation of its histology in a panoramic and topographical manner. Commonly performed on the edge of a tumor, an oriented biopsy allows for better surgical planning, eventually helping to decrease the number of stages of micrographic surgery. The present article details the procedure's technical execution not only from a surgical, but also from a laboratorial perspective.

Keywords: BIOPSY; AMBULATORY SURGICAL PROCEDURES; MOHS SURGERY; PATHOLOGY, SURGICAL; SKIN NEOPLASMS.

Histopathology reports are the pathologist's description of a microscopic morphological image, which can be understood as long as the basic elements of the histological structures are known. However, actually viewing the morphological image can be more helpful in understanding what is really being described, similar to the examination of radiograms, which is directly performed by the orthopedist despite the report being made by the radiologist. This article discusses this scenario, with the aim of encouraging surgeons to view and inspect morphological images to improve their understanding of the clinical-surgical status and their analysis of the state of the surgical margins or the histological subtype.

Keywords: Mohs Surgery; Official laboratory; Pathology; Reoperation; Skin Neoplasms

Arterial pseudoaneurysm is a rare complication caused by damage to the arterial wall, resulting in a locally confined hematoma connected to the lumen of the artery. We report the case of a patient on anticoagulants who developed nodules at the surgical wound site after Mohs micrographic surgery for basal cell carcinoma. The initial clinical suspicion was the formation of a simple hematoma. However, Doppler ultrasound examination revealed the presence of pseudoaneurysms in the bilateral supratrochlear arteries. We believe this is the first reported case of supratrochlear artery pseudoaneurysm following dermatologic surgery.

Keywords: Aneurysm, False; Carcinoma; Basal Cell; Ultrasonography, Doppler, Color