Leishmaniasis masquerading as pyoderma gangrenosum in a non-endemic area: A case report.

Pyoderma gangrenosum (PG) can be difficult to diagnose, leading to diagnostic delay which affects patient outcomes and increases health care utilization. Among different scenarios of diagnostic delay, atypical infections can mimic PG. Here, we present a case of extensive cutaneous leishmaniasis initially misdiagnosed as the superficial granulomatous variant of PG and describe diagnostic clues to aid in differentiation.

Atypical cutaneous manifestations of methicillin resistant Staphylococcus aureus infections in two immunocompetent pediatric patients: Case reports and review of the literature.

Although many clinical variants of Staphylococcus aureus infection are well-recognized, atypical presentations may mimic other conditions. We describe two cases of atypical S. aureus infections in pediatric patients: a S.

Targeted Transcriptional Analysis of IgA Vasculitis, IgA Nephropathy, and IgA-Dominant Infection-Related Glomerulonephritis Reveals Both Distinct and Overlapping Immune Signatures.

Key Points: Skin IL-9, calprotectin, and KIR gene expression may be predictive of subsequent kidney involvement in patients with IgAV. Histologically similar patients with IgAN, IgAV, and IgA-IRGN can be distinguished by their immune transcriptomes. Kidney biopsies from patients with IgA-IRGN are enriched for transcripts involved in granulocyte chemotaxis.

Subcutaneous panniculitis-like T-cell lymphoma responsive to combination therapy with methotrexate and corticosteroids.

Subcutaneous panniculitis-like T-cell lymphoma (SPTCL) is a rare condition that falls underneath the umbrella of primary cutaneous T-cell lymphomas (CTCLs). SPTCL can be very difficult to diagnose as it may mimic other subtypes of CTCL, such as γ/δ T-cell lymphoma (TCL), or other forms of panniculitis. Confirmation of diagnosis often requires immunohistochemical analysis and is essential for proper prognosis and therapeutic management.