Novel Presentation of Lichenoid Dermatoses Preceding Bullous Pemphigoid Secondary to Immune Checkpoint Inhibitor Therapy.

The 73-year-old non-Hispanic, African-American man with a history of renal cell carcinoma (RCC), status post-nephrectomy receiving Lenvatinib, and metastatic disease, for which he also had received nivolumab for 13½ months. An itchy eruption appeared one month after the discontinuation of nivolumab and after the beginning of axitinib therapy. Physical examination revealed pink-violaceous scaly plaques, some with trailing scales on the anterior aspect of the trunk (Figure 1), a slight erosion on the hard palate, and hypopigmentation on the hands and legs.

Large Nevus Lipomatosus Cutaneous Superficialis in the Skin of Color.

A 15-year-old African-American man (Fitzpatrick skin type V) presented to the outpatient dermatology clinic with a large, verrucous, exophytic mass measuring 3.5 × 2.3 cm on the right lateral side of the posterior flank (Figure 1).

Violaceous nodules of the extensor joints - a clinicopathological challenge.

Antineutrophilic cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a condition characterized by vessel inflammation and may have a variety of etiologies. Among these, cocaine and its common adulterant, levamisole, have been described to contribute to the development of AAV with distinct cutaneous manifestations. Classically, these manifestations involve purpuric or necrotic lesions involving the ears, nose, and extremities.

Pancreatic Panniculitis: A Case Associated With Acute Pancreatic Allograft Rejection.

We present a unique case of pancreatic panniculitis (PP) in a 42-year-old male with a history of pancreas-after-kidney (PAK) transplant. The patient developed PP due to acute pancreas allograft rejection. Clinical manifestations included fevers, myalgias, arthralgias, and tender erythematous subcutaneous nodules on the lower extremities.

Immune Checkpoint Inhibitor-Induced Psoriasiform, Spongiotic, and Lichenoid Dermatitis: A Novel Clinicopathological Pattern.

Immune checkpoint inhibitors (ICIs), a class of anticancer agents that upregulate T-cell response to tumor cells, are associated with immune-related adverse events (irAEs), and the skin is one of the most commonly affected organs. We report the first two cases of a unique ICI-induced clinicopathological entity. A psoriasiform-appearing eruption with psoriasiform, spongiotic, and lichenoid dermatitis pattern on histopathology.

Verruca Vulgaris Eruption Arising in the Setting of a Tyrosine Kinase Inhibitor.

A 71-year-old female with breast cancer presented with a generalized papular rash that began following the initiation of rebastinib. Examination revealed scattered pink to skin-colored verrucous papules on the forehead, extremities, and back. A biopsy showed hyperkeratosis, hypergranulosis, digitated epidermal hyperplasia, and dilated blood vessels at the tips of dermal papillae consistent with verruca vulgaris.