Disseminated histoplasmosis in a patient with AIDS: case report and review of the literature.

Disseminated histoplasmosis was uncommon prior to the AIDS epidemic, and cutaneous eruption rarely was seen. Since the onset of the worldwide AIDS epidemic, histoplasmosis has become a more common opportunistic fungal infection and should be considered in the differential diagnosis of mucocutaneous lesions in patients with AIDS in endemic areas. We report a case of classic disseminated histoplasmosis in a patient with AIDS and discuss the epidemiology, clinical presentation, pathogenesis, laboratory and histopathologic findings, and treatment options for disseminated histoplasmosis.

Intracellular calcium in hypertrophic smooth muscle from rat urinary bladder.

Objective: To explore whether infravesical outlet obstruction is associated with alterations in calcium activation of detrusor smooth muscle.

Material And Methods: Outlet obstruction was created by partial ligature of the urethra in female rats. Western blotting was performed using an antibody against the cytoplasmatic region of the alpha1c subunit of the L-type Ca2+ channel.

Right atrial botryoid rhabdomyosarcoma in an adult patient with recurrent pleomorphic rhabdomyosarcomas following doxorubicin therapy.

We describe a case of a 37-year-old Hispanic woman who presented with a right atrial botryoid rhabdomyosarcoma 2 years after doxorubicin therapy for a recurrent pleomorphic rhabdomyosarcoma of the chest wall. Although this may be a second primary, it most likely represents a cardiac metastasis with maturation of chemotherapy-resistant tumor cells.

Perivascular myoma of myopericytoma and myofibromatosis-type arising in a chronic scar.

We describe a case of a cutaneous perivascular myoma with features overlapping between the myofibromatosis and the myopericytoma type. The patient is a 58-year-old woman with a painless plaque-like and multinodular lesion in the pretibial dermis and subcutaneous tissue. She had repeated trauma to this site, first in her early youth that left an area of hyperpigmentation, and then again at age 40.

Lung infection due to opportunistic fungus, Phialemonium obovatum, in a bone marrow transplant recipient: an emerging infection with fungemia and Crohn disease-like involvement of the gastrointestinal tract.

We report the first case of Phialemonium obovatum fungemia with subsequent caseating granulomatas in the lung and Crohn disease-like involvement of the gastrointestinal tract in a bone marrow transplant recipient. This phaeoid fungus has been rarely described as an opportunistic infection in immunosuppressed patients. The patient was diagnosed with chronic myelogenous leukemia and underwent subsequent peripheral bone marrow transplant.

Tattoo pigment in sentinel lymph nodes: a mimicker of metastatic malignant melanoma.

Tattoo pigment in the sentinel lymph nodes of melanoma patients represents a clinical challenge. If a tattoo is present in the area of the primary melanoma, the draining lymph nodes are likely to contain tattoo pigment, as well as being the site for metastatic deposits of melanoma. We describe a case report involving an elderly Caucasian male diagnosed with a Clark level-4 nodular malignant melanoma, wherein intraoperatively we encounter a darkly pigmented lymph node highly suspicious for metastatic disease.

Pilonidal sinus of the glans penis associated with actinomyces case reports and review of literature.

Pilonidal sinus is a well-recognized condition that occurs most commonly in the sacrococcygeal area of younger men. It is hypothesized to be an acquired chronic inflammation condition due mainly to hair trapped beneath the surface. A pilonidal sinus in the sacrococcygeal region is associated with recurrent infection, abscess formation, cellulitis, fistulae, and rarely, squamous cell carcinoma.

Nerve induced responses and force-velocity relations of regenerated detrusor muscle after subtotal cystectomy in the rat.

Aims: To study the pharmacological and mechanical properties of newly developed detrusor muscle after subtotal cystectomy, to explore if the regenerated detrusor has characteristics similar to the normal bladder base, from which it regenerated, or to the normal bladder body which it replaces.

Methods: Partial cystectomy was performed in female rats. Fifteen weeks later, detrusor strips were cut from supratrigonal and equatorial segments.