Rajiv Sharad Joshi

Learn More
A 21-year-old male presented with numerous asymptomatic dark brown to brown black pigmented macules and barely raised plaques on the face, trunk and extremities, developing over a period of 2 year. The surface of most lesions had a velvety raised surface similar in appearance to acanthosis nigricans and a biopsy from one of the lesions showed pigmented(More)
Schwannomas are benign peripheral nerve sheath neoplasms composed almost entirely of Schwann cells and are diagnosed histopathologically by the presence of singular architectural patterns called Antoni A and Antoni B areas. These were described first in 1920 by the Swedish neurologist Nils Antoni. The Antoni A tissue is highly cellular and made up of(More)
A 27-year-old female presented with pruritic keratotic papules over the left side of the face since one month. The lesions developed a few days after working in a hot humid environment and were preceded by severe uncontrollable pruritus for which she had repeatedly wiped the area with handkerchiefs and towels. A biopsy from one of the keratotic papules(More)
T inner root sheath (IRS) is an important structure of the lower part of the hair follicle that surrounds and protects the growing hair. It lies between the hair in the center and the outer root sheath (ORS) peripherally, and all these three structures are derived from the matrical cells of the follicular bulb. The inner root sheath is made up of three(More)
We describe five cases of verruciform xanthoma (VX). The patients, all males, presented with single warty verrucous lesions of 0.5-2 cm size that had been diagnosed clinically as viral warts (four cases) and leukoplakia (one case). Two patients had the lesion in the oral cavity, two on the genital mucosa, and one on the scrotal skin. Histopathology was(More)
Neoplastic transformation (development of squamous cell carcinoma / verrucous carcinoma) in lichen planus has been described, especially in the oral form of the disease where an estimated 0.3-3% of patients may develop squamous cell carcinoma. Malignancy though uncommon with cutaneous lichen planus has been described in chronic hypertrophic lesions of(More)
  • Rajiv Joshi
  • Indian journal of dermatology, venereology and…
  • 2007
Nine patients, seven males and two females aged 6-14 years, presented with extensive, asymptomatic, brown-black macules and mildly elevated, pigmented lesions of a few months' duration. The sites affected were the face, trunk and proximal extremities. The skin lesions were discrete and individual lesions were less than 2 cm in size. The clinical diagnoses(More)