Background Although widely used for the management of patients with cutaneous melanoma,
the sentinel lymph node (SLN) biopsy (SNB) procedure raises several issues. This study …

Gastrointestinal stromal tumors (GISTs), tumors characterized by c-KIT mutations, are the
most frequent mesenchymal tumors of the digestive tract. The stomach is the most commonly …

BACKGROUND: It is debated whether patients with melanoma who undergo lymphadenectomy
after a positive sentinel lymph node (SN) biopsy (SNB) have a better prognosis …

Background Diagnosis and proper management of atypical Spitz tumors in pediatric age are
still controversial. Objective We sought to investigate the clinicopathological and molecular …

Sarcomas are rare, heterogenous, and often difficult to classify. A large proportion of sarcomas
are associated with specific molecular genetic lesions such as translocations, mutations, …

Background Composite hemangioendothelioma is a rare histopathologic feature, which is
part of the hemangioendothelioma family. This is a heterogeneous group of vascular …

Background Current clinical and histopathological criteria used to define the prognosis of
melanoma patients are inadequate for accurate prediction of clinical outcome. We investigated …

Temporomandibular joint (TMJ) involvement is quite frequent in juvenile idiopathic arthritis (JIA).
We describe a 15-year-old girl with isolated TMJ arthritis presenting as a unique …

Background Recently a few cases of synovial sarcoma (SS) of the abdominal viscera have
been reported, raising awareness about the potential for confusion between this entity and KIT…

Perivascular epithelioid cell tumors (PEComas) are rare soft-tissue tumors with an extremely
heterogeneous clinical behavior. They may arise in different organs and may behave …