Eccrine squamous syringometaplasia is a histologic finding associated with chemotherapy administration and other cutaneous diseases. Concentration of the chemotherapeutic agents is believed to effect toxic changes in these epithelial structures. We report the first case of vincristine-induced eccrine squamous syringometaplasia in a 12-year-old patient undergoing treatment for rhabdomyosarcoma.
We present two rare cases of phacomatosis pigmentovascularis type IIb, with one patient demonstrating concurrent Sturge-Weber syndrome and Klippel-Trenaunay syndrome. To the best of our knowledge, this is the second infantile case meeting diagnostic criteria for systemic phacomatosis pigmentovascularis type IIb, Sturge-Weber syndrome and Klippel-Trenaunay syndrome in the English language literature.
Hemorrhagic vesicles in a newborn present a challenging differential diagnosis including both infectious and neoplastic disorders. Patients should be evaluated in an efficient manner to arrive at the correct diagnosis as quickly as possible. We present here an interesting case that outlines the methodical workup that ultimately revealed the diagnosis of congenital Langerhans cell histiocytosis. After a diagnosis of Langerhans cell histiocytosis is made, it is important to evaluate the patient thoroughly for systemic involvement. Historically, the diagnosis of congenital self-healing Langerhans cell histiocytosis was used to delineate a benign self-limited disorder limited to the skin with spontaneous resolution during the first several months of life; this disorder may also be referred to as "self-regressive Langerhans cell histiocytosis." However, some newborns with initial skin-only Langerhans cell histiocytosis progress to have multisystem disease after spontaneous resolution has occurred. For this reason, the nomenclature is changing. We suggest using the term "skin-only Langerhans cell histiocytosis." Periodic long-term follow-up is recommended to monitor for relapse or progression to systemic disease.
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