ABSTRACT
Clear cell acanthoma (CCA) is a rare, benign epithelial tumor most frequently found on the lower extremities. Its clinical appearance may vary considerably, and cases of multiple lesions have been reported. The diagnosis is made by viewing the characteristic histologic features. This case describes an unusual scalp lesion that clinically and histologically shows unique polypoid features.
Subject(s)
Papilloma/pathology , Scalp/pathology , Skin Neoplasms/pathology , Aged , Female , HumansABSTRACT
Tinea nigra is a relatively uncommon dermatiaceous fungal infection, usually caused by Phaeoannellomyces werneckii, that may mimic a melanocytic lesion. We describe the value of epiluminescent dermoscopy of tinea nigra plantaris compared with other common diagnostic tools and procedures available (clinical appearance, potassium hydroxide [KOH], culture, culture mount preparation, and biopsy). A case of tinea nigra plantaris was evaluated clinically, microscopically with KOH, and dermatoscopically. Dermatoscopic findings were evaluated according to the Stolz system. Dermoscopy, clinical presentation, and microscopy with KOH all confirmed the diagnosis, with dermoscopy being the fastest and simplest procedure. Dermoscopy is a useful clinical adjuntive tool in differentiating tinea nigra from a melanocytic lesion.
Subject(s)
Melanosis/pathology , Skin Diseases/pathology , Skin/ultrastructure , Tinea Pedis/pathology , Adult , Biopsy, Needle , Dermatology/methods , Diagnosis, Differential , Humans , Luminescent Measurements , Male , Melanosis/diagnosis , Microscopy, Fluorescence , Sensitivity and Specificity , Skin/pathology , Skin Diseases/diagnosis , Tinea Pedis/diagnosisSubject(s)
Lentigo/diagnosis , Melanoma/diagnosis , Skin Neoplasms/diagnosis , Biopsy/methods , Diagnosis, Differential , Humans , Male , Middle AgedABSTRACT
We describe a 19-year-old African-American man with a 14-year history of migratory poliosis. We suggest that this phenomenon may represent a forme fruste of alopecia areata.
Subject(s)
Alopecia Areata/pathology , Adult , Alopecia Areata/diagnosis , Black People , Cell Movement , Hair Color , Humans , Male , ScalpSubject(s)
Exostoses/diagnostic imaging , Hallux/diagnostic imaging , Child , Diagnosis, Differential , Exostoses/complications , Humans , Male , Pain/etiology , RadiographyABSTRACT
A variety of environmental stimuli, such as vibration, ultraviolet radiation, and exposure to water, are recognized as causes of "physical urticaria." A medical student, participating in a demonstration of a galvanic device used in the treatment of hyperhidrosis, demonstrated urticaria in response to this galvanic stimulation.
Subject(s)
Iontophoresis/adverse effects , Urticaria/etiology , Adult , Humans , Male , Remission, SpontaneousABSTRACT
The environmental extremes in which soldiers exercise and fight, like the environmental extremes in which many civilians encounter occupationally and recreationally, can prove to be a significant cause for morbidity and decreased effectiveness. A variety of skin diseases are related to occupational exposure to dusts and ultraviolet radiation as a well known cause of cutaneous damage. As more is understood about the biochemical factors involved in frostbite injury, treatment recommendations have changed. Too much water, hot or cold, is a continued source of cutaneous misery to the soldier in the field. Finally, even common minor skin ailments can incapacitate the sufferer when confronted with unfavorable environments.
Subject(s)
Military Personnel , Occupational Diseases/etiology , Occupational Exposure/adverse effects , Skin Diseases/etiology , Humans , Occupational Diseases/therapy , Skin Diseases/therapy , United StatesABSTRACT
BACKGROUND: Surgical excision and debridement is the standard therapy for cutaneous and intraoral pyogenic granulomas (PGs). Occasionally the mass of granulation tissue proves unresponsive to the usual treatment methods. OBJECTIVE: We report a case in which the flashlamp pulsed dye laser (PDL), previously reported as useful in cutaneous PGs, was used in a patient with persistent granulation tissue around dental implant posts. METHODS: An illustrative case is presented with a brief discussion of the use of lasers in dentistry and in the treatment of PGs. RESULTS: Previously resolute tissue responded well to a series of treatments with the PDL. CONCLUSION: The PDL may have utility in this oral condition, providing a new venue for cooperation between dentists and dermatologists.
Subject(s)
Gingival Diseases/surgery , Granuloma, Giant Cell/surgery , Granuloma, Pyogenic/surgery , Laser Therapy , Aged , Dental Implantation, Endosseous , Dental Implants , Dental Prosthesis, Implant-Supported , Female , Follow-Up Studies , Gingivectomy/methods , Granulation Tissue/surgery , Humans , Recurrence , ReoperationABSTRACT
Primary anetoderma is a rare disorder characterized by sac-like herniations and depressions in previously normal skin. On histologic examination, elastic fibers are destroyed by an inflammatory infiltrate. We describe a striking case of primary anetoderma and review the classification, differential diagnosis, causes, and treatment.
Subject(s)
Neck , Skin Diseases/diagnosis , Skin/pathology , Adult , Diagnosis, Differential , Elastic Tissue/pathology , Facial Dermatoses/diagnosis , Humans , Male , Skin Diseases/pathologyABSTRACT
Psoriasis and other diffuse inflammatory diseases of the scalp can cause a unique physical findings that we call the "teepee sign" because the hair forms pyramidal tufts at regular intervals that resemble an American Indian encampment. A pathological mechanism for this finding is proposed, with the description of two cases in Air Force basic trainees, one of a severe seborrheic dermatitis and the other psoriasis. The significance with regard to physical qualification for entry into military service is discussed.
