Scalp discoloration from selenium sulfide shampoo: a case series and review of the literature.

We describe six patients who developed orange to red-brown scalp discoloration after application of selenium sulfide-containing shampoos. This phenomenon has been described only once previously. In all of the cases, the discoloration resolved shortly after discontinuing the selenium sulfide. Lightly swabbing with isopropyl alcohol facilitated removal of the discoloration. This simple technique serves as a painless diagnostic method, which may prevent unnecessary evaluation with a biopsy.

A rare case of intravascular large T-cell lymphoma with an unusual T helper phenotype.

Although most cases of intravascular large cell lymphoma exhibit a B-cell phenotype, less than 50 cases in the literature describe a T-cell or natural killer cell phenotype and, of these, the majority are CD3+, CD4-, CD5-, CD30-, CD56+, TIA-1+, and EBER+. We present a case of a rare intravascular large T-cell lymphoma in a 59-year-old man with an unusual CD3+, CD4+, CD5-, CD30+, CD56-, TIA-1-negative and EBER-negative phenotype. This T helper or CD30 phenotype is particularly uncommon. To our knowledge, it has only been described once before and never in the absence of the cytotoxic marker TIA-1. This case exemplifies the particular diagnostic challenges raised by intravascular large cell lymphomas generally and should encourage the use of endothelial immunohistochemical staining in questionable cases. While evaluating skin punch biopsies, it is critical to keep this rare entity on the differential diagnosis along with the relatively more common intravascular large B-cell lymphoma and epithelial malignancies. Additionally, our understanding of intravascular large natural killer/T-cell lymphoma as a heterogeneous phenotypic entity continues to evolve. This case demonstrates that the degree of this phenotypic heterogeneity may be even greater than previously thought.

Oral propranolol for treatment of periocular infantile hemangiomas.

OBJECTIVE: To evaluate the efficacy and adverse effects of oral propranolol for treatment of periocular infantile hemangioma. METHODS: Participants were treated with oral propranolol 3 times daily, with outpatient monitoring of adverse effects. The starting dosage was 0.5 mg/kg/d for 1 week, then 1 mg/kg/d for the following week, then 2 mg/kg/d for the remaining duration of treatment. Serial examinations and external photography documented the size of the hemangiomas. Complete ophthalmic examinations included assessing for amblyopia with cycloplegic refraction and visual diagnostic testing. Amblyopia was treated with part-time occlusion therapy. RESULTS: Nineteen periocular hemangiomas from 17 children (71% girls) were studied. The median age at the start of treatment was 4.5 months (interquartile range, 2.2-5.6 months). The median treatment duration was 6.8 months (interquartile range, 4.1-7.2 months). Treatment with oral propranolol reduced the size of all hemangiomas. Median change in the surface area was 61% (interquartile range, 32%-64%) of the original size. Mild rebound growth that did not necessitate retreatment was found in 2 patients (12%). One patient (6%) experienced a benign episode of bradycardia. Seven patients (41%) had amblyopia. CONCLUSIONS: Oral propranolol for treatment of infantile hemangiomas was effective in all patients, with 33% reduction in astigmatism and 39% reduction in surface area. Vision equalized in all but 1 child, who receives ongoing amblyopia therapy. Our results suggest that early treatment with propranolol is remarkably effective in treating and preventing loss of visual acuity associated with periocular infantile hemangiomas.