Antitubercular drug-induced lichen planus: A case study with a mini literature review.

Introduction: Drug-induced lichen planus is a cutaneous adverse effect that manifests as a systemic eruption of flat-topped, erythematous, or violaceous papules resembling lichen planus on the trunk and extremities. Although antitubercular therapy has been linked to cutaneous hypersensitivity reactions, the literature on such cases is scarce. Here, we present a case to contribute to this field, reporting on its presentation and management, and reviewing previous case studies. Case Report: Our patient, a 63-year-old male, presented with black pigmented patches on the skin, having been diagnosed with pulmonary tuberculosis and on antitubercular therapy for the past two months. A diagnosis of ATT-induced lichen planus was made, and all ATT was stopped. The patient was treated with antihistamines, apremilast, tacrolimus, and corticosteroids, and rechallenge of each drug was performed consecutively. No new lesions appeared after rechallenge with isoniazid and rifampicin. However, ethambutol was not reintroduced due to strong suspicion, by exclusion, that it was the offending agent, whereas on rechallenge with isoniazid and rifampicin, the patient's skin lesions gradually improved with eventual resolution of hyperpigmentation. Discussion and Conclusion: Lichenoid drug eruptions are characterized by type IV hypersensitivity reactions, and rechallenge is required to ensure safer treatment since the risk of disseminated and multi-drug-resistant tuberculosis increases with the cessation of antitubercular therapy.

The clinical spectrum and antibiotic sensitivity patterns of staphylococcal pyodermas in the community and hospital.

CONTEXT: The uncontrolled use of antibiotics has resulted in a relentless spread of multiresistant strains of Staphylococcus aureus. There are studies conducted in medical colleges in Chandigarh, Chennai, Mumbai and Vellore comparing pyodermas in the community and hospital setting based on clinical and bacteriological parameters. AIMS: This study, conducted over 1½ years from March 2009 to August 2010, aimed at analyzing the clinical spectrum and antibiotic sensitivity pattern of community and hospital-associated (HA) staphylococcal pyoderma. It also assessed the prevalence of methicillin-resistant S. aureus (MRSA) in the community and hospital cohort settings. SUBJECTS AND METHODS: The study comprised of 200 cases of staphylococcal pyodermas, derived from the community (150 cases) and hospital (50 cases). Patients were evaluated based on their clinical presentation; antibiotic susceptibility was tested using the Kirby-Bauer disk diffusion method. STATISTICAL ANALYSIS USED: Statistical significance between individual attributes between the community and HA staphylococcal pyoderma groups was analyzed using Chi-square test and mean differences using student's t-test. RESULTS: Factors associated with community-associated (CA) pyodermas were young age (P = 0.0021), primary pyodermas, and involvement of extremities, while those with HA pyodermas were middle age, secondary pyodermas, and significantly increased body surface involvement (P = 0.041). Incidence of CA-MRSA was 11.3%, while that of HA-MRSA was 18%. CONCLUSIONS: A high level of resistance to first-line drugs such as penicillin, ciprofloxacin and cotrimoxazole was observed, more so in the hospital strain than in the community strain. S. aureus demonstrated good susceptibility to cephalosporins. Though the two strains of MRSA differed clinically, they showed 100% sensitivity to vancomycin and linezolid.

Fatal leptomeningeal melanoma in neurocutaneous melanosis.

We report an unusual occurrence of a primary dural-based malignant melanoma in a 13-year-old boy with neurocutaneous melanosis. The lesion presented with rapid-onset symptoms characterized by raised intracranial pressure and seizures, had an aggressive clinical course, and proved to be fatal despite two surgeries and adjuvant therapy. There should be a high index of suspicion for the occurrence of such a malignant leptomeningeal tumor in patients with congenital melanocytic nevi presenting with neurological symptoms of recent onset.

Neurocutaneous spectrum of multiple endocrine neoplasia-1.

Multiple endocrine neoplasia type I or Wermer syndrome is characterized by primary hyperparathyroidism, enteropancreatic endocrine tumor, and a pituitary pathology. A 35-year-old male presented with visual field defects, hyperprolactinemia, and hypogonadism. He also had multiple infraumbilical skin-colored nodules. A syndromal association of Wermer syndrome was derived using the dermal, pituitary, parathyroid, and gastrointestinal hormonal manifestations of the tumor. The radiological and histological findings of lesion which underwent biopsy are discussed. The presence of collagenomas, lipomas, and hypopigmented macules in a patient with neuroendocrine symptoms should raise the suspicion of an underlying multiple endocrine neoplasia.