Plexiform schwannoma: a clinicopathologic overview with emphasis on the head and neck region.

Plexiform schwannoma is a rare variant of Schwann cell tumor. Occurring in either conventional or cellular type, they are characterized either grossly or histologically by a plexiform pattern of intraneural growth often with multinodularity. Ordinary as well as plexiform schwannoma typically arise in superficial soft tissues and show a predilection for the head and neck region.

Breast cancer risk in women with radial scars in benign breast biopsies.

Background: The risk for subsequent breast cancer in women diagnosed with radial scar lesions (RS) on benign breast biopsy remains controversial. We studied the relative risk of radial scar lesions in a large cohort of patients with benign breast disease (BBD).

Methods: Radial scars were identified in a BBD cohort of 9,262 patients biopsied at Mayo Clinic between 1967 and 1991.

Pseudomycetoma caused by Microsporum canis in an immunosuppressed patient: a case report and review of the literature.

Background: A 65-year-old woman with a history of liver and kidney transplantation presented with a pruritic and tender rash of 2-year duration on her left knee.

Methods: The patient had a physical examination, and multiple skin biopsies were performed.

Results: Examination showed a cluster of dome-shaped, violaceous papules.

Unusual presentation of a malignant granular cell tumor of the pelvis: case report and literature review.

Background: Malignant granular cell tumors are among the rarest of soft tissue cancers, currently understood to be of Schwann cell origin. As with their benign counterparts, malignant granular cell tumors (MGCTs) have a wide anatomic distribution and carry a poor prognosis, with recurrence and metastasis typically within 1 year of diagnosis. Only a handful of MGCTs have been described in the pelvis.