Left supraclavicular parathyroid carcinoma: diagnostic difficulties through a case report.

Parathyroid carcinoma is a very rare malignant tumour of the parathyroid gland, accounting for less than 0.005% of all cancers, and less than 1% of the aetiologies of primary hyperparathyroidism. This case report aims to describe the incidental discovery of a non-secreting parathyroid carcinoma in a left supraclavicular location and to report on the diagnostic difficulties encountered, together with a review of the literature and current management issues.

Unusual clinical presentation of a giant parathyroid adenoma: A case report from Morocco highlighting the rare entity and atypical symptoms.

Primary hyperparathyroidism (PHPT), an endocrine disorder most commonly caused by parathyroid adenoma (PTA), manifests with a diverse array of symptoms, reflecting the multisystem impact of parathyroid hormone: nephrolithiasis, peptic ulcer disease, psychiatric disorders, muscle weakness, constipation, polyuria, pancreatitis, myalgia, and arthralgia. Rarely do these PTA attain a significant size. PHPT is usually diagnosed through biochemical tests, and radiological imaging characterizes the adenoma.

Association of trichilemmal and basal cell carcinomas: a case report.

Proliferating trichilemmal tumor (PTT) is a benign tumor arising from the isthmic portion of the hair follicle. Malignant transformation in PPT is very rare and unusual. Indeed, only about sixty well-documented cases have been found in the English literature.

Malignant peripheral nerve sheath tumors of the sino-nasal tract: about an unusual case report.

Malignant peripheral nerve sheath tumors are defined as malignant tumors arising from or differentiating toward the cells of the peripheral nerve sheath. They occur in about 8-16% within the head and neck region. Morphologically, some malignant tumors look like malignant peripheral nerve sheath tumors, particularly in the head and neck location; however, immunohistochemistry have a great contribution to distinguish between them.

Pseudovascular Squamous Cell Carcinoma of the Oral Cavity: A Diagnostic Pitfall About a Case.

Squamous cell carcinoma is the most common mucosal malignancy of the head and neck. Adenoid pseudo-angiosarcomatous SCC is a rare variant occurring commonly in the skin of the head and neck. However, involvement of oral cavity is extremely rare, with only few case reports in the English literature.

Concurrent Angiomyolipoma and Clear Cell Renal Cell Carcinoma in the Same Kidney: A Rare Finding in a Patient without Tuberous Sclerosis.

Synchronous renal cell carcinomas (RCC) and angiomyolipomas (AML) occurring in the same kidney are rare. Cases in the setting of tuberous sclerosis (TS) have been reported in the literature. However, the association of these tumors in the same kidney without TS is even more rare.

Leiomyosarcoma of the Renal Vein Mimicking a Primitive Renal Cell Carcinoma: Case Report of an Unusual Presentation.

Primary leiomyosarcomas (LMS) of vascular origin are rare tumors, and more than half of the cases arise in the inferior vena cava (IVC). Primary LMS of the renal vein are extremely rare tumors with only a few cases reported in the literature. Their diagnosis is made only by pathological features.

[Therapeutic management and prognostic profile of a patient with maxillary sarcomatoid carcinoma (case report)].

Sarcomatoid carcinoma is a rare, aggressive, malignant tumor with a poor prognosis and a very high frequency of recurrence. Carcinoma of the maxillary sinus is extremely rare. We report the case of a 42-year-old woman with left maxillary process.

Retroperitoneal leiomyoma of gynecologic type: a case report and review of the litterature.

Retroperitoneal leiomyomas are rare benign tumors with smooth muscle differentiation, with only ~1001 cases reported in the English literature to date. Because of its scarcity and non-specific presentation, the preoperative diagnosis might be challenging. On histology, these neoplasms share the same macroscopic, morphological and phenotypic features with uterine leiomyoma; thus, they are referred to as leiomyoma of gynecologic type.

Calcifying Fibrous Tumor of the Mesentery: A Case Report and a Review of the Literature.

Background: Calcifying fibrous tumor (CFT) is a rare entity, with a distinctive histological presentation, initially reported as childhood fibrous tumor with psammoma bodies. It is a benign hypocellular fibrous neoplasm calcifications and lymphoplasmacytic infiltrate. The CFTs may involve many sites, including gastrointestinal tract, pleura, abdominal cavity, and neck.

Pelvic angiomyofibroblastoma: an unusual case report.

Angiomyofibroblastoma is a rare mesenchymal benign tumor that frequently occurs in young- to middle-aged women, arising from the genital tract. There are many overlapping radiological and immunohistochemical features with other stromal cell lesions, making the diagnosis difficult. We report here a case of a 29-year-old woman admitted for a pelvic mass, in whom, the histopathological and immunohistochemical studies led to the diagnosis of angiomyofibroblastoma.

Solitary preperitoneal neurofibroma: a case report.

Background: Neurofibroma is a rare benign tumor. The isolated presence of such lesions in the preperitoneal space with no evidence of systemic disease has never been reported in the literature.

Case Presentation: A 29-year-old white man presented with a 12 months history of progressive abdominal distension.

Juxtaglomerular cell tumor: a distinct mesenchymal tumor of kidney.

Juxtaglomerular cell tumor (JGCT) is an unusual mesenchymal entity of the kidney. It is a benign renin-secreting tumor causing hypertension and hypokalemia due to secondary hyperaldosteronism. It is curable if it is discovered early and surgically removed, but may cause a fatal outcome usually due to complications of associated hypertension.

Primary endobronchial leiomyosarcoma of the lung: clinical, gross and microscopic findings of two cases.

Primary leiomyosarcoma of the lung is an unusual malignant tumor. Among this entity, the endobronchial form is very rare and the preoperative diagnosis is extremely difficult. We present two different presentations and outcomes of primary endobronchial leiomyosarcoma of the lung.

Calcified multilocular thymic cyst associated with thymoma: a case report.

Introduction: There are few case reports of thymoma with a thymic cyst. Such an association renders it difficult for any pathologist to differentiate from other neoplasms, such as a cystic thymoma.

Case Presentation: A 50-year-old Berber woman from Morocco was admitted with a chronic cough of more than 10 years duration.