Biomedical subjects

M J López Redondo

Publications and source records attributed to M J López Redondo.

3 recordsLinked to original sources

PubMed1993

Fingertip tophi without gouty arthritis.

We report 2 patients without a history of acute gouty arthritis showing tophi located only on the fingertips, an unusual location. A review of the literature found a few similar reports; these patients might represent a subgroup of gout characterized by: (1) elderly patients, from the 7th to 9th decades; (2) hyperuricemia; (3) absence of a history of acute gouty arthritis; (4) tophi in the fingertips or fingerpads; (5) chronic renal failure, and (6) all taking drugs or suffering from a disease that affects urate renal excretion.

Aged↗

PubMed1991

An unusual benign neural tumour with stellate-cell morphology.

We report a stellate-cell dermal tumour which was studied by immunohistochemistry and electron microscopy. The stellate morphology of the tumour cells appeared to be due to retraction of their cytoplasm resulting in the emergence of intercellular spaces. Results of the immunohistochemical investigations were consistent with a neural tumour, but we could not assign it to any particular category of the known neural tumours. Therefore we have designated this tumour as an unusual, benign, neural-tumour with stellate-cell morphology.

Female↗

PubMed1990

Multinodular hemosiderotic dermatofibroma.

We describe a patient who developed a pigmented plaque on the anterior aspect of his right knee clinically mimicking angiokeratoma circumscriptum or malignant melanoma. Histopathological examination demonstrated a multinodular hemosiderotic dermatofibroma in which the cellular tumor islands were separated by areas of hyalinized collagen. Multinucleated giant tumor cells were found in the lumen of a medium-size vein underlying the tumor. The differential diagnosis of angiomatoid malignant fibrous histiocytoma, a tumor with clinical and morphologic similarities, is discussed.

Adult↗