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Biomedical subjects

B Richert

Publications and source records attributed to B Richert.

At least 19 recordsLinked to original sources
PubMed2005

[How I treat...varicosities by sclerotherapy].

Sclerotherapy is a technique for the treatment of varicosities, vascular ectasia, and sometimes, leg varicose veins. This method is aesthetic and in some cases therapeutics and uses sclerosing agents, electrocoagulation and exceptionally LASER. These relatively simple methods are safe and efficient if they are applied with a rigorous procedure by well trained physicians.

Electrocoagulation↗
PubMed2004

Periungual lipoma: about three cases.

Lipomas are one of the most common benign soft tissue tumors. The usual development sites are the neck, the torso, and the legs. Lipomas of the nail unit are extremely rare. Only five cases have been reported up to now, four in subungual locations and one in the lateral nail fold. We report three cases of peri-ungual lipomas, one on the digit and two on the toes. Two of them exhibited the histological features of perisudoral lipomas.

Aged↗
PubMed2004

Hyperkeratotic nail discoid lupus erythematosus evolving towards systemic lupus erythematosus: therapeutic difficulties.

Nail changes occur in about 25% of systemic lupus erythematosus (SLE) cases. Onycholysis has been reported as the most frequent abnormality in SLE. Nailbed hyperkeratosis may be observed in both SLE and discoid lupus erythematosus (DLE). Involvement of the nail apparatus in DLE is extremely uncommon and never restricted to it. We report on a patient in whom the clinical features on the proximal nailfold were similar to those observed on the skin of a patient with typical DLE. This has, to the best of our knowledge, not yet been reported. The patient also exhibited a very distinctive prominent subungual hyperkeratosis. Interestingly, the patient developed biological alterations suggesting a systematization of the disease. Only a combination of systemic corticoids, retinoids and antimalarials was able to achieve nail improvement and this partial resistance to therapy may be explained by the very unusual subungual hyperkeratosis.

Dermatologic Agents↗
PubMed2004

[Xanthomas].

Xanthomas are cutaneous lesions due to a local accumulation of spumous cells in the dermal tissue or the tendons. Histologically, they are characterized by the presence of histiocytes, fibroblasts, macrophages and Touton cells full of lipids. Xanthomas may be found on any part of the body and are usually yellow-orange in color. They may or may not be associated to hyperlipoproteinemia which may be genetic or secondary. A blood test and a complete physical examination are necessary in case such a lesion is discovered. When there is no hyperlipemia some types of xanthomas may be associated to rare diseases. Xanthomas are classified according to their clinical features.

Biopsy↗
PubMed2003

[Sutures in skin surgery].

Dermatologists performing skin surgery mostly use the square knot. Other underused or even forgotten suturing techniques may still be helpful in some instances. We shall emphasize some simple techniques such as the horizontal mattress suture, the "cross stitch", the "corner stitch" (half buried mattress suture), the buried dermal suture, the buried vertical mattress suture, the continuous mattress suture and the running intradermal suture. In given circumstances, all of them may improve suturing and promote healing. Technical aspects, advantages and disadvantages of each type of suture will be briefly described.

Dermatologic Surgical Procedures↗
PubMed2003

[The management of onychomycosis].

Despite the appearance of the new systemic drugs there is still an incompressible failure rate in treating patients affected by onychomycosis. Moreover some patients are unable or unwilling to take oral drugs. They perceive the infection to be too trivial to deserve systemic therapy. In addition the use of the new potent systemic drugs may sometimes be limited by adverse effects and drug-drug interactions. A rationale for a stepped therapeutic approach to the treatment of onychomycosis is suggested using the transungual antifungal delivery systems, the systemic antifungal drugs and surgical or chemical debridement. Long-term management with the nail lacquers applied twice a month should still improve the cure rate and its economic implication.

Antifungal Agents↗
PubMed2002

[Green nail syndrome or chloronychia].

"Green nails" or chloronychia is an infection mostly caused by Pseudomonas ueruginosa but also by other bacterial or fungal contamination. The clinical appearance consists in a typical triad: green discoloration of the nail plate associated with proximal chronic paronychia and disto-lateral onycholysis. Exposition to moist environment, microtraumatisms, oaychotillomania and associated nail diseases such as psoriasis may promote infection by Pseudomonas. Treatment consists in cutting of the detached nail plate, brushing the nail bed with a 2% sodium hypochlorite solution twice daily and eviction of the repeated immersions by wearing cotton and latex gloves.

Administration, Topical↗
PubMed2001

Pincer nails: definition and surgical treatment.

BACKGROUND: There are four main types of ingrown nail. These are distal nail embedding, juvenile (subcutaneous) ingrown nail, hypertrophy of the lateral nail fold (lip), and pincer nail. OBJECTIVE: The etiology of pincer nail may be hereditary or acquired. The mechanism of the most common form, an enlarged base of the distal bony phalanx, is discussed. METHODS: Use of roentgenogram and magnetic resonance imaging highlights exophytes of the base and dorsal hyperostosis of the distal phalanx. RESULTS: Global assessment may lead in mild cases to medical therapy. Usually, however, the lateral matrix horn must be surgically removed or cauterized by phenol. Dermal grafting under the nail matrix provides excellent long-term results.

Humans↗
PubMed2001

[A non-infectious pyodermatitis: Pyoderma gangrenosum].

Pyoderma gangrenosum (PG) is a rare chronic inflammatory skin disease characterized by the recurring development of necrotizing and painful ulcers. The skin lesions appear spontaneously or after minor traumatic injuries. Sites of predilection include the lower limbs and the trunk but any part of the body may be affected. PG is not an infectious disease; although the etiology is not completely understood, an immune disturbance is certainly involved. An underlying systemic disorder is associated in up to 50% of the cases, specially inflammatory bowel diseases, arthritis, paraproteinemias and hematologic malignancies. Chronic venous or arterial ulcers as well as bacterial gangrene are the most frequent false diagnoses. A right diagnosis, based upon the distinctive clinical features and a compatible histology, is essential to avoid surgical procedure that often tends to exacerbed the process. Because of its persistent and recurrent nature, systemic long-term therapy based upon corticosteroids associated with sulfones or immunosuppressive agents is required.

Adrenal Cortex Hormones↗
PubMed2000

[Nail localization of dermatoses].

The nail unit may reflect a dermatological disease by its own. Actually, its involvement may account for the existence of a skin disease that never showed before (i.e. lichen planus). But since the nail apparatus has a limited repertoire of clinical expressions (hyperkeratosis, onycholysis, paronychia...), the diagnosis may be sometimes difficult even for the most trained physician. Nail involvement may be however an additional clue in the diagnosis of an atypical skin disease. In that case, it might help in the final correct diagnosis provided that the physician did not forget that clinical examination of the nails is part of a dermatological examination.

Darier Disease↗