Unclassifiable Renal Cell Carcinoma With an Estimated 100% Sarcomatoid Component: A Case Report.

Sarcomatoid renal cell carcinoma (RCC) is an aggressive tumour with a poor prognosis. It is not a distinct histological entity, as it can be found in any subtype of renal cell carcinoma. The majority of cases will present with advanced or metastatic disease requiring systemic treatment.

Secretory Breast Carcinoma: A Rare Breast Cancer With an Excellent Behavior.

Secretory breast carcinoma (SBC) is a rare breast cancer subtype, histologically, defined by abundant eosinophilic secretions with a triple-negative staining on immunohistochemistry. The diagnosis is made histologically and often requires complementary methods such as immunohistochemical studies and fluorescence in situ hybridization (FISH). Surgery, whether conservative or radical, is the preferred treatment.

Unusual Association of Large Cell Neuroendocrine Carcinoma of the Bladder and Prostatic Adenocarcinoma Within a 76-Year-Old Man.

Large cell neuroendocrine carcinoma (LCNEC) is one of the rarest types of bladder cancer, with an aggressive course and a poor prognosis. We report a case of LCNEC of the bladder associated with a prostatic adenocarcinoma. A very rare association, to our knowledge, is described for the first time in the literature.

Leiomyoma: An Exceptional Benign Tumor of the Kidney.

Renal leiomyoma is a benign finding in kidney pathology. It has been documented in various organs; renal location is less frequent and has been rarely documented in the literature. We present here the case of a renal leiomyoma revealed by an abdominal mass and flank pain.

A Rare Case of Retroperitoneal Immature Teratoma in a Young Adult Male: A Case Report From Eastern Morocco.

Teratomas are classified as germ-cell tumors. They occur more frequently in the gonads, but extragonadal localization can also occur. Retroperitoneal teratomas are rare and require multidisciplinary management.

Pre-sternal Embryonic Dermoid Cyst: A Case Report.

Epidermoid and dermoid cysts are benign, usually slow-growing lesions classified as ectodermal inclusion cysts. These cysts form when epithelial remnants become trapped during the closure of the first and second branchial arch; however, a few cases are related to trauma or are iatrogenic. Diagnosis is made based on the cyst development history and imaging such as ultrasound.

Primary Hepatic Squamous Cell Carcinoma: A Case Report.

Primary squamous cell carcinoma (SCC) of the liver, a notably uncommon type of cancer, is frequently linked with diverse hepatic conditions including hepatic cysts, hepatolithiasis, and hepatic teratoma. Literature indicates that only approximately 30 cases of primary SCC of the liver have been documented. Herein, we report a 54-year-old previously healthy patient who was presented with cholangitis symptoms.

Unexpected Metastasis of Primary Colonic Adenocarcinoma: A Case Report and Literature Review.

Colorectal cancer is a common cancer worldwide. The major sites of colorectal cancer metastasis are the liver, lungs, peritoneum, lymph nodes, and bones. However, secondary localization in the bladder is extremely rare.

Exceptional case of a hemangioma-like rabdomyosarcoma in the hand's palm.

Rhabdomyosarcoma is a malignant tumor in children that might mimic a benign tumor, such as infantile hemangioma, particularly when detected early. Although rhabdomyosarcoma rarely occurs in the hand, its prognosis is generally poor, and successful treatment relies on a complete and radical surgical excision. We present a case of rhabdomyosarcoma located in the palm of an infant's hand, initially presenting clinical and radiological features suggestive of a vascular tumor.

Synovial Sarcoma of the Submaxillary Salivary Gland: A Rare Location and Challenging Diagnosis.

Synovial sarcoma is a high-grade sarcoma. The periarticular region, deep soft tissues, and the extremities are where it is most frequently found. The head and neck regions are rarely affected and salivary gland localization is rather rare, especially the submaxillary gland.

Papillary Neoplasms of the Gallbladder and Extrahepatic Bile Ducts: A Report of Two Cases With Associated Invasive Carcinoma.

Intracholecystic papillary neoplasm (ICPN) of the gallbladder is a macroscopically visible premalignant lesion protruding into the gallbladder lumen, with infrequent association with invasive adenocarcinoma. Intraductal papillary neoplasm of the bile ducts (IPNB) is a non-invasive lesion characterized by intraductal papillary or villous architecture. Both ICPN and IPNB are rare findings in the gallbladder and biliary tract pathology.

Metastatic Epithelioid Hemangioendothelioma of the Bone: A Case Report and Literature Review.

Epithelioid hemangioendothelioma (EHE) is an extremely rare vascular tumor, which can pose a diagnostic dilemma. It affects women more than men and is mainly found in the liver, lung, and bone. To date, there are no known predisposing factors.

Jaundice and Higher Procalcitonin Level Revealing a Small-Cell Lung Cancer With Pancreatic Metastasis: A Case Report From Eastern Morocco.

Small-cell lung cancer (SCLC) is highly aggressive, with a severe tendency for metastasis. Pancreatic metastasis in SCLC is uncommon, also jaundice as a major symptom of small-cell lung cancer is even rarer. The diagnosis of pancreatic metastasis is a real challenge for the medical team, it relies on both radiological and pathological details.

Multimodal Therapy of Locally-Advanced Penile Cancer: A Case Report With Literature Review.

Cancer of the penis is a rare tumor that occurs in the elderly. Because of its rarity, it is often not diagnosed early, and its treatment poses difficulties for practicing oncologists. We report the case of an elderly patient treated for locally advanced squamous cell carcinoma (SCC) of the penis, with a review of the literature.

When Tuberculosis Defies Appearances: The Tale of a Deceptive Abdominal Mass on Imaging.

Tuberculosis poses a significant public health challenge, especially in highly endemic countries. Rarely, it appears as an abdominal mass resembling a malignant abdominal tumor and can be misleading on imaging, so early diagnosis remains a challenge, and confirmation may require invasive examinations such as laparotomy. The most characteristic radiological appearance is that of a solid, hypervascular, or peripherally enhancing mass with a hypodense center.

Two cases of Dieulafoy's lesion in unusual sites: A rare case reports of gastrointestinal bleeding.

Introduction: Dieulafoy's lesion (DL) is a vascular malformation that can lead to massive gastrointestinal bleeding. It's usually found in the stomach. However, DL's occurrence in atypical sites such as the small bowel and colon is exceptionally rare, posing significant management challenges.

Nodular Basal Cell Carcinoma in an Unusual Groin Location: A Rare Presentation.

Basal cell carcinoma is the most frequent skin malignancy with a constant rise in its incidence. It affects typically the head and neck of elderly patients. However, the literature in English shows its occurrence in many uncommon locations.

Gastric Adenocarcinoma With Unusual Clear Tubulopapillary Morphology: A Case Report.

Gastric clear cell adenocarcinoma is an extremely rare variant of papillary adenocarcinoma of the stomach. It is associated with a poor prognosis due to its frequent lymphovascular invasion and also its higher risk of recurrence. It is characterized morphologically by a clear appearance of tumor cells, which can be easily confused with a metastasis of a clear cell carcinoma, particularly of renal origin.

A Rare Case of Trichobezoar Revealing Undiagnosed Celiac Disease.

Trichobezoar is a relatively rare condition in children, mainly observed in young girls with psychiatric disorders. While documented cases of trichobezoar associated with celiac disease exist, such occurrences remain uncommon in the literature. The association between the two can be explained either by behavioral disorders resulting from a deficiency in iron and folic acid or directly by celiac disease.

Solitary Necrotic Nodule of the Liver: A Benign Mimicker of Malignancy.

Solitary necrotic nodule (SNN) of the liver is an uncommon and benign finding in liver pathology. Typically, it appears as a single and asymptomatic lesion, primarily located at the subcapsular region of the right lobe of the liver. Unfortunately, it is easy to mistake this benign lesion for a primary or secondary neoplastic lesion, making it a potential diagnosis pitfall for liver malignancies.

Pigmented medulloepithelioma of the optic nerve: A challenging diagnostic entity.

Because of its rarity, the diagnosis of optic nerve medulloepithelioma poses a real diagnostic challenge. Medulloepithelioma is a congenital tumor that derives from the primitive medullary epithelium present in the neural tube and the optic vesicle. Its classical location is the ciliary body.

Giant Poroid Hidradenoma of the Forearm.

Poroid hidradenoma represents an uncommon and benign tumor originating from skin adnexa. It falls under the category of sweet duct neoplasms, along with poromas. It affects the elderly population most frequently.