Foliculitis decalvante y disecante. reporte de cuatro casos clínicos / Folliculitis decalvans and dissecting folliculitis.report of four clinics cases

RESUMEN Las alopecias cicatrizales comprenden un grupo heterogéneo de trastornos, que dan lugar a la pérdida permanente del pelo. Se distinguen las alopecias primarias, en las que el folículo piloso es el blanco específico del proceso destructor y las alopecias secundarias, que son el resultado de una destrucción no específica. Dentro del primer grupo se encuentran, las denominadas alopecias del tipo neutrofílicas, entre ellas:las foliculitisdecalvante y foliculitisdisecante o perifoliculitiscapitisabscedens et suffodiens. Se presentan a continuación, cuatro casos clínicos, tres con diagnóstico de foliculitisdecalvante y uno con foliculitisdisecante, en pacientes de sexo masculino, en edades comprendidas entre 21-39 años, con un retardo en el diagnóstico clínico-patológico entre 8 y 36 meses. Dos de ellos, obtuvieron una buena respuesta al tratamiento con isotretinoína vía oral, mientras que dos no regresaron a la consulta, por lo que se desconoce su evolución. Motiva este reporte,destacar la importancia de comunicar la necesidad deun diagnóstico precoz, con la finalidad de ofrecerles a los pacientes una respuesta terapéutica satisfactoria.

SUMMARY The cicatricialalopeciasinclude a heterogeneous group of disorders that lead to permanent hair loss. Primary alopecias are distinguished, in which the hair follicle is the specific target of the destructive process, and secondary alopecias, that are the result of a non-specific destruction. Within the first group are the so-called neutrophilic type alopecias, consisting of the folliculitis decalvans and dissecting folliculitis or perifolliculitis capitis abscedens et suffodiens. Four clinical cases are presented below, three of them being diagnosed with folliculitis decalvans and one with dissecting folliculitis, in male patients, aged between 21-39 years, having a delay in clinical-pathological diagnosis between 8 and 36 months. Among these, two obtained a good response to treatment with isotretinoin orally, while the other pair did not return to the consultation, so their evolution is unknown.This report motivates the need for an early diagnosis in order to offer patients a satisfactory therapeutic response, which does not occur in later stages.

Folluculitis Decalvans of the Scalp: Improvement with Intralesional Injection of Triamcinolone Acetonide and Oral Isotretinoin / 대한피부과학회지

No abstract available.

Primary cicatricial alopecias: a review of histopathologic findings in 38 patients from a clinical University Hospital in Sao Paulo, Brazil

BACKGROUND: Scarring alopecias are classified into primary and secondary types according to the initial site of inflammation. In primary scarring alopecias, the hair follicle is the main target of destruction; the term secondary cicatricial alopecia implies that follicular destruction is not the primary pathologic event. AIMS: To review the histopathologic diagnoses of cases of cicatricial alopecia in order to classify them according to the North American Hair Research Society. PATIENTS AND METHODS: Patients with biopsy specimens diagnosed as cicatricial alopecia seen from 2000 to 2005 at the Dermatologic Department of Hospital das Clinicas, São Paulo University Medical School had hematoxylin and eosin, Periodic acid-Schiff and Weigert stained slides reevaluated and sub-typed into different primary cicatricial alopecias. RESULTS: Thirty-eight cases of primary cicatricial alopecias were reclassified as: chronic cutaneous lupus (17), lichen planus pilaris (4), pseudopelade of Brocq (12), folliculitis decalvans (3), dissecting folliculitis (1), and non-specific scarring alopecia (1). In our cases, the methods employed allowed an accurate diagnosis in 12 of 13 cases (92.3 percent) previously classified as non-specific cicatricial alopecias. CONCLUSIONS: Even in the late, pauci or non-inflammatory phases, an approach with systematic evaluation of a constellation of criteria in routine hematoxylin and eosin stain, Periodic acid-Schiff and Weigert stain allowed for a more accurate diagnosis of cicatricial alopecias.

Two Cases of Folliculitis Decalvans / 대한피부과학회지

Two cases of folliculitis decalvans are reported. One case is a 51 year-old woman showing the lesion first on the left occipital scalp and then, 4 years later, on the left mandibular area. The other case, a 57 year-old woman. showed the lesion typically encircled with pustules and crusts for the 20 years on the vertex area.