Mohs micrographic surgery is a technique used to excise skin tumors based on comprehensive surgical mapping, in which the surgeon removes the tumor, followed by a complete histological evaluation of the tumor's margins. The correlation of the presence of a tumor in histological examinations and its precise location on the surgical map result in a complete removal of the tumor with maximum norma...

Mohs chemosurgery, using the fixed-tissue technique, was proposed for the treatment of melanoma by Frederic Mohs in 1950.[1] In numerous publications since, Mohs reported cure rates at least comparable to those obtained with the conventional surgical therapies of the time. Initially, Mohs believed that the in situ tissue fixation with zinc chloride paste inherent in the fixed-tissue technique w...

dHACM: dehydrated human amnion/chorion membrane INTRODUCTION Mohs surgery and repair of lower eyelid surgical defects present unique reconstruction challenges because of risk for ectropion. There are several options to avoid this adverse outcome, but when a patient declines surgical repair, there are no alternatives aside from second-intention healing with or without adjunctive therapy. One pro...

Optical coherence tomography (OCT) is an imaging technology with the potential to provide high-resolution images of the skin non-invasively. With this device, it is possible to identify a host of skin structures including tumors. In this case report, we demonstrate the use of an OCT device in delineating a lateral tumor margin of an ill-defined basal cell carcinoma prior to Mohs micrographic su...

L entigo maligna (LM) is an in situ lesion with a 2% to 50% risk of progression to LM melanoma. Currently, surgery or radiotherapy is usually recommended as the primary treatment for LM. In the literature, the recurrence rates reported for radiotherapy range from 0% to 19%, with a mean recurrence rate of approximately 7%; in addition, radiotherapy carries the risk of causing chronic radiodermat...

Hidroacanthoma simplex is a rare intraepidermal neoplasia that arises from the acrosyringial portion of the eccrine duct. Malignant transformation of hidroacanthoma simplex is reported in the literature and the treatment is performed with wide excision or Mohs micrographic surgery. We report the first case successfully treated with cryosurgery with a long-term follow up.