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Biomedical subjects

R M Pujol

Publications and source records attributed to R M Pujol.

At least 73 records · Page 4Linked to original sources
PubMed1991

Tegafur-induced acral hyperpigmentation.

Four patients with colorectal cancer treated with tegafur (a fluoropyrimidine structurally similar to 5-fluorouracil) noted a macular, spotted hyperpigmentation limited to the palms, soles, nails, and glans penis. Histopathologic examination disclosed epidermal basal hyperpigmentation with a lentiginous pattern. Mucocutaneous lesions resolved spontaneously two months after treatment was discontinued. This peculiar phenomenon seems to represent a previously unreported side effect of this cytotoxic drug.

Aged↗
PubMed1990

Disseminated Kaposi's sarcoma not associated with HIV infection in a bisexual man.

We report a 42-year-old white bisexual man with disseminated Kaposi's sarcoma limited to the skin and gastrointestinal tract. Results of several serum tests for human immunodeficiency virus (HIV) antibodies have been negative. The CD4/CD8 ratio has remained normal, and his Kaposi's sarcoma has had a benign clinical course during 30 months of follow-up. Similar reports of disseminated Kaposi's sarcoma with a benign clinical course in homosexual or bisexual men without demonstrable HIV infection are reviewed. Some cellular immune impairment that might be more prevalent in the homosexual population may be implicated in the pathogenesis of this type of Kaposi's sarcoma.

Acquired Immunodeficiency Syndrome↗
PubMed1989

Pseudoscleroderma secondary to phytonadione (vitamin K1) injections.

Two patients showed symmetrical sclerodermoid (morphea-like) skin lesions at sites of intramuscular phytonadione (vitamin K1) injections. The lesions appeared one and two years after the injections. A dense sclerosis involving the reticular dermis and subcutaneous fat was observed on histologic examination of biopsy specimens. Local adverse reactions to phytonadione are reviewed. Possible causative mechanisms for phytonadione-induced pseudoscleroderma are discussed.

Aged↗
PubMed1988

Acquired pachydermatoglyphy. A cutaneous sign of internal malignancy.

A 70-year-old man with hypertrophic osteoartropathy secondary to a squamous cell carcinoma of the lung presented a distinctive pattern of late-onset bilateral palmar keratoderma. A yellowish rugose appearance with accentuation of normal ridges and sulci (pachydermatoglyphy) involving the palms was observed. The differential diagnosis and the clinical relevance of acquired pachydermatoglyphy as a cutaneous marker of internal malignancy are discussed.

Acanthosis Nigricans↗
PubMed1988

Childhood self-healing histiocytosis X.

A 6-month-old boy had histiocytosis X limited to the skin and oral mucosa, which regressed spontaneously over a period of six months. We review the subsets of autoinvolutive histiocytosis X with special emphasis on the dermatologic manifestations. Childhood self-healing histiocytosis X is a benign condition that should be differentiated from self-healing reticulohistiocytosis (Hashimoto-Pritzker type).

Age Factors↗
PubMed1988

Porokeratotic eccrine ostial and dermal duct nevus.

We report 2 cases of congenital porokeratotic eccrine nevus in a 5-year-old girl and a 7-year-old boy. The clinical manifestations were those of nevus comedonicus palmaris. The histologic picture consisted of comedo-like dilatations and cornoid lamellae involving the eccrine ostia and ducts. One of the cases showed anomalies in the dermal eccrine ducts. We believe that these lesions are eccrine hamartomas unrelated to porokeratosis. We review similar cases from the literature and discuss the differential diagnosis.

Biopsy↗
PubMed1988

Eosinophilic histiocytosis. A subset of lymphomatoid papulosis.

A 43-year-old male with a 23-year history of small-plaque-type parapsoriasis developed a chronic recurrent self-healing papulonodular and tumoral cutaneous eruption. The microscopic findings were consistent with eosinophilic histiocytosis. Immunohistochemical and ultrastructural studies revealed a population of T lymphocytes, eosinophils and monocyte-macrophage cells in the dermal infiltrate. These findings confirm the similarities between eosinophilic histiocytosis and lymphomatoid papulosis suggesting that the former may be a clinicopathologic variant of the latter.

Adult↗
PubMed1988

Perforating lichen striatus.

A case of lichen striatus with transepidermal elimination of clusters of necrotic keratinocytes is reported. On the basis of the morphologic findings, we suggest that transepidermal elimination may be a mechanism of healing in some cutaneous lichenoid eruptions.

Biopsy↗
PubMed1988

[Multiple hamartoma syndrome].

We describe the clinicopathological features of multiple hamartoma and neoplasia syndrome (Cowden's syndrome) in a 58 year-old man and in a 56 year-old woman. The typical mucocutaneous lesions of this disorder were present in both cases. Visceral hamartomas involving thyroid and gastrointestinal system (polyposis) were present in both patients. Dermal or submucous fibromas are proposed as an additional diagnostic criterium of Cowden's syndrome. Associated abnormalities and visceral involvement in multiple hamartoma syndrome are reviewed.

Biopsy↗
PubMed1988

Familial leiomyomatosis cutis et uteri (Reed's syndrome).

We report a large family with leiomyomatosis cutis et uteri. Sixty-four percent of the females were involved; 18% had only uterine myomas, 10% had only cutaneous piloleiomyomas, and 36% had both. Five patients (45%) had to have an hysterectomy before age 35. Management of female patients having leiomyomatosis cutis should include a periodical gynecological examination in order to rule out the presence of uterine myomas.

Adult↗