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Biomedical subjects

R J Hirsch

Publications and source records attributed to R J Hirsch.

9 recordsLinked to original sources
PubMed2001

Morphoea of the breast in a young girl.

Localized morphoea is an uncommon sclerosing skin disorder. Prognosis is usually good but it may lead to contractures, perturbed limb growth, atrophy, pigmentary changes and cosmetic disturbance. We describe a case of morphoea that developed in one breast in a 9-year-old white female. Treatment comprised topical ammonium lactate 12% cream and tretinoin 0.025% cream but no topical corticosteroids were prescribed. One year later she was noted to have bilateral symmetrical breast development and, although signs of morphoea were still present in one breast, the plaque had softened and there was no breast deformity. It is important to remember that most cases of morphoea improve spontaneously, although a number of possible therapeutic options may be indicated in some patients.

Breast↗
PubMed2001

Isotretinoin dosing: past, present, and future trends.

Isotretinoin is the treatment of choice for severe nodulocystic acne. It represents the sole agent that effectively addresses all of the pathophysiological factors in the production of acne. Dosing recommendations are based on European trials that included patients with nonacne skin disease, which requires higher doses of isotretinoin for clearance. In this article, the authors relate their extensive experience with dosing regimens for acne as well as discuss recommendations for length of therapy.

Acne Vulgaris↗
PubMed2001

Treatment of acne scarring.

One of the most distressing side effects of acne vulgaris is the development of acne scars. In this article, the authors discuss the history of and current modalities in use for the treatment of acne scars. The discussion includes resurfacing, dermabrasion, laser surgery, peels, punch excisions, and the use of fillers.

Acne Vulgaris↗
PubMed2001

Evaluation of pigmented lesions of the nail unit.

Acquired pigmentary changes of the nail are secondary to a number of etiologies. These include nail matrix nevi; physical induction secondary to trauma; malignant melanoma; nutritional deficiencies; inflammation secondary to lichen planus; endocrine causes such as Addison's disease; or secondary to bacterial, fungal, or viral infections. The most important task faced by clinicians is to distinguish benign from malignant etiologies of nail pigmentation. We will briefly review the various entities that can yield dyspigmentation and their differentiation from melanoma of the nail.

Humans↗
PubMed2000

Multiple infundibulocystic basal cell carcinomas in association with human immunodeficiency virus.

Infundibulocystic basal cell carcinoma (IBCC) is a relatively recently described variant of basal cell carcinoma that is controversial and not universally accepted. Excluding cases of nevoid basal cell carcinoma syndrome, IBCC usually presents as a small, solitary, superficial lesion on the face of older persons. There have been previous reports of diffusely distributed, multiple similar lesions, but there is disagreement about the diagnosis in these cases. We present a case of a 43-year-old man with multiple papular lesions which we believe represent IBCC in the setting of infection with the human immunodeficiency virus (HIV).

Adult↗
PubMed2000

Rosacea 2000.

Explore the source record for details and available documents.

Humans↗
PubMed1997

Synovial sarcomas of the head and neck: MR findings.

OBJECTIVE: MR images of six synovial sarcomas of the head and neck were evaluated to determine their characteristic sites of origin, size, extent, intensity, and contrast enhancement. It was hoped that specific MR characteristics could be defined to suggest this entity. CONCLUSION: A nonmucosal head and neck mass that is isointense to gray matter on T1-weighted images and is well defined yet heterogeneous, with septations, hemorrhage, cysts, calcification, or multilocularity, should raise suspicion of a synovial sarcoma. Because the appearance of synovial sarcomas varies and other masses may appear similar, no specific imaging characteristics define the entity.

Adult↗