Diffuse cutaneous mastocytosis with bone marrow infiltration in a child: a case report.

Mastocytosis encompasses a range of disorders characterized by overproliferation and accumulation of tissue mast cells. Mast cell disease is most commonly seen in the skin, but the skeleton, gastrointestinal tract, bone marrow, and central nervous system may also be involved. We present a 10-year-old boy with diffuse cutaneous mastocytosis characterized by disseminated papular, nodular, and infiltrated leathery lesions.

Cytodiagnosis of cutaneous basal and squamous cell carcinoma.

Objective: We performed a prospective study to evaluate the diagnostic accuracy of cytologic examination in basal cell carcinomas (BCCs) and squamous cell carcinomas (SCCs), in order to assess its clinical value. Study design Samples were taken by the "scraping" technique which involves scraping with a scalpel blade directly over the skin tumor surface, smearing the cells onto several glass slides, and fixing them with "citospray." The specimens were stained with the Papanicolaou stain.

Malignant nodular hidradenoma.

A 54-year-old male farmer was seen in May 1990 with a violaceous, exulcerated tumor, 2x1.5 cm in diameter, localized to the sternal area of the chest. The tumor had been present for 30 years, showing slow progressive growth; it was excised, but recurred 2 years before our initial evaluation.

Ashy dermatosis and lichen planus pigmentosus: a clinicopathologic study of 31 cases.

The clinical and histopathologic characteristics of patients with ashy dermatosis (n = 20) and lichen planus pigmentosus (n = 11) were analyzed. We found significant clinical differences between both dermatoses, supporting our opinion that they are two separate conditions. Both dermatoses were histologically similar.