Browse Items (53 total)

BACKGROUND: Lichen planopilaris (LPP) is a potential trichologic emergency that can result in permanent scarring alopecia. Histopathology is a key component of the diagnostic work-up. OBJECTIVE: To identify the key histologic features that…

INTRODUCTION: Spreading pigmented actinic keratosis (SPAK) is a common, but uncommonly reported or appreciated, variant of classic actinic keratosis (AK). It can mimic different pigmented lesions, which may be benign (eg, solar lentigo) or malignant…

PURPOSE: The purpose of this study was to evaluate whether ultrasonography is helpful in predicting malignancy in patients with a thyroid nodule and atypia/follicular lesion of undetermined significance (AFLUS). METHODS: All patients with a…

Malignant peripheral nerve sheath tumors (MPNSTs) are rare soft tissue sarcomas that arise from peripheral nerve fibers and are derived from Schwann cells, perineural cells, or fibroblasts. MPNST is an aggressive neoplasm in which local recurrence is…

In some individuals, chronic lymphocytic leukemia (CLL) may be associated with glomerular disease from membranous nephropathy with resultant nephrotic syndrome. CLL is characterized by abnormal immunoregulation with a malignant clonal proliferation…

A case of a melanotic schwannoma presenting as a soft tissue mass of the abductors of the hip is reported. The radiographic findings suggested myositis ossificans, but several subtle findings raised the concern for something else. A bilobed…

OBJECTIVE: To discuss the diagnosis and management of metastatic renal cell carcinoma presenting as a parotid mass by studying such cases. STUDY DESIGN: Retrospective review. METHODS: Identification of 24 previously reported cases of renal cell…

Transbronchial lung biopsy (TBLB) is associated with pneumothorax, 12% occurring 1 to 4 hours postprocedure (delayed pneumothorax). We report a case of a delayed pneumothorax first diagnosed on a positron emission tomography (PET) scan performed 5…

There are multiple factors that affect the shear wave speed in the assessment of liver stiffness. In this case report, we present a case of hemochromatosis that has elevated liver stiffness suggestive of significant fibrosis or cirrhosis; however on…

Primary angiosarcoma of the breast is a rare entity. In this case report, we present a case of primary angiosarcoma of the breast in a young woman who presents with her entire right breast enlarged without skin coloration change or signs of mastitis.…

Contrast-enhanced ultrasonography (CEUS) is an imaging modality that shows promise in the detection and characterization of renal masses, as well as treatment through CEUS-guided percutaneous radiofrequency ablation. These techniques may be…

PURPOSE: To determine the sensitivity and specificity of a real-time elasticity imaging (EI) ultrasound (US) system in the characterization of breast lesions as benign or malignant. METHODS: A total of 208 patients with 251 lesions were scheduled to…

We report a case of AFH presenting as an asymptomatic subcutaneous nodule on the arm of a 6-year-old boy. AFH is a fibrohistiocytic tumor of intermediate malignancy. Predominantly seen in children and young adults, AFH presents as a deep dermal or…

PURPOSE: To determine whether addition of quality measure (QM) of shear-wave (SW) velocity (Vs) estimation can increase SW elastography sensitivity for breast cancer. MATERIALS AND METHODS: With written informed consent, this institutional review…

Hemolytic-uremic syndrome following quinine ingestion is a newly described phenomenon, with just two previous descriptions of 4 cases in the literature. We describe a 5th case. The reaction may be mediated by the presence of antibodies reactive…

A 25-year-old black man presented with left-sided chest pain and cough for 3 days. His pain was pressure-like and nonradiating and was aggravated with movement and relieved when the patient lay at a 45 degrees angle. The patient denied fevers,…

Diffuse malignant mesothelioma is the most common primary tumor involving the pleura. Unfortunately, it also poses the most difficulty for physicians to diagnose and treat. Latency from the time of initial asbestos exposure, clinical features of…

Stump pemphigoid is a localized variant of bullous pemphigoid characterized by specific clinical, pathological, and immunofluorescent characteristics. The early diagnosis of this entity guides treatment toward this specific immunologically mediated…

We describe four families with a strong familial expression of Barrett's/gastroesophageal reflux disease (GERD) complex spanning one to four generations with two to seven affected members per family. The purpose of this report is to highlight genetic…

Cases of primary colorectal signet-ring cell carcinoma metastatic to the tonsil are extremely rare. To the best of our knowledge, only 4 such cases have been previously reported in the literature. We report a new case in a 76-year-old white woman.…

A review of 6109 mammograms representing 4332 patients seen over 4 years is presented. The American Cancer Society guidelines for mammography screening were followed. Forty-five percent of all tumors were nonpalpable; in 12% of these the lymph nodes…

Intraosseous cartilage tumors are commonly encountered by orthopaedic surgeons during evaluation of a patient for undetermined pain; however, the possibility of missing a malignancy during examination is cause for concern. Surgery for enchondromas is…

We report a case of cutaneous vasculopathy associated with the use of levamisole-adulterated cocaine. This recently described clinical entity is characterized by a purpuric rash with a predilection for the ears, leukopenia, and anti-neutrophilic…

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