Cutaneous Lymphangitic Carcinomatosis as the First Sign of Recurrent Malignancy in a Patient With a History of Rectal Adenocarcinoma

Clinical Practice Points • Cutaneous lymphangitic carcinomatosis is a rare form of cutaneous metastatic disease which can appear to be a variety of different dermatologic conditions. Clinicians should maintain a high index of suspicion in order to avoid delays in diagnosis and treatment given the poor prognosis of cutaneous metastatic disease. • While the skin is an uncommon site of metastatic disease, it is important to remember that cutaneous metastases can be the sole presenting sign of malignancy or extra nodal disease. • Skin metastases more commonly present within the first 3 years after discovery of a primary tumor. However, they can occur at any time and have been reported up to 22 years after an initial cancer diagnosis. Clinicians should consider this with any new skin lesion in a patient with a history of malignancy.