Sandbox : anmol

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Anmol Pitliya, M.B.B.S. M.D.[2]

Differential NHL

Diseases			Clinical manifestations						Para-clinical findings			Pathogonomic finding
			Symptoms
									Lab Findings		Biopsy Histopathology
			Lymphadenopathy	Fever	Weight loss	Night Sweats	Rash	Other symptoms	Immunochemistry	Blood work
Non-Hodgkins lymphoma			painless localized or generalized	+	+	+	+	Presents with "B" symptoms Constant fatigue Shortness of breath and Cough Abdominal pain or swelling Constipation Nausea andvomiting.
INFECTIONS	Bacteria	Syphilis	painless localized	+	-	-	+	Primary syphilis: Chancer Secondary syphilis: Rash Condylomata lata Patchy alopecia Tertiary syphilis Gumma Organ system involvement	Darkfield microscopy to detect T. pallidum. Nontreponemal tests (e.g., VDRLand RPR ) Treponemal tests (e.g. FTA-ABS, the TP-PA assay			Painless clean base chancre.
		Brucellosis	Painful	+	-	-	+	Abdominal pain hepatosplenomegaly arthritis	Brucella is most commonly isolated from blood cultures positive titer of anti-brucella antibodies on serological testing			Night sweats, often with characteristic smell, likened to wet hay
	Viral	infectious mononucleosis	painful	+	-	-	+	low-grade feverwithout chills sore throat, white patches on tonsils and back of the throat, muscle weakness fatigue petechial hemorrhage
		CMV		+	-	-	+
		HIV	Painful or painless	-	+	-	-
		Cat scratch disease		+	-	-	+
	Mycobacteria	Tuberculosis	Painful	+	+	+	+	Prior history of residence in an endemic area. Chronic cough, weight loss, hemoptysis	PCR of CSF for tuberculosis Mycobacterial culture of CSF Brain biopsy for acid-fast bacilli staining Culture and acid stain positive for acid-fast bacilli CXR shows cavitations.			Gohn's focus
	Parasite	Toxoplasmosis			-	-
Diseases			Lymphadenopathy	Fever	Weight loss	Night sweats	Rash	Other symptoms	Immunochemistry	Blood work	Biopsy Histopathology	Pathogonomical findings
AUTOIMMUNE	Systemic lupus erythematosus		painless	-	-	-	+		ESR CRPelevated ANA positive			Malar rash and photosensitivity
	Sjögren's syndrome		Painless	-	-	-	+	Xerosis Scaly skin Annular erythema				Keratoconjunctivitis sicca
	Sarcoidosis		painless	-	-	-								-	-
Diseases			Lymphadenopathy	Fever	Weight loss	Night sweats	Rash	Other symptoms	Immunochemistry	Blood work	Biopsy Histopathology	Pathogonomical findings
NEOPLASIA	Hodgkin's disease		painless	+	+		+		Lactate dehydrogenase (LDH) may be increased. ESR elevated Serum creatinine elevated in nephrotic syndrome. Alkaline phosphatase (ALP) increased Hypercalcemia, hypernatremia, and hypoglycemia.		Fine-needle aspiration Mononucleate and binucleate Reed-Sternberg cells in a background of inflammatory cells	Reed-Sternberg cells on microscopic pathology.
	Chronic lymphocytic leukemia		Painless	+	+	+	-	Recurrent bleeding Muscle wasting Generalized weakness Anorexia Abdominal pain Recurrent infections	Monoclonality of kappa and lambda producing B cells Presence of smudge cells Express CD19, CD20, CD23, and CD5 on the cell surface	CBC Absolute lymphocytosis (>5000 cells/μl) Decreased hemoglobin concentration Decreased platelets count	On microscopic histopathological analysis: Small lymphoid cells Thin cytoplasmic border Dense nucleus Lack of nucleolus Clumped chromatin aggregates The presence of smudge cells The presence of gumprecht nuclear shadows
	Small cell carcinoma of the lung		painless	-	-	-	-	Syndrome of inappropriate antidiuresis (SIADH) Hypercalcemia Cough (most common symptom) Wheezing Dyspnea Hemoptysis Chest pain	Nearly all SCLC are immunoreactive for keratin, thyroid transcription factor 1, epithelial membrane antigen Neuroendocrine and neural differentiation result in the expression of molecules like dopa-decarboxylase, calcitonin neuron-specific enolase, chromogranin A, CD56 gastrin-releasing peptide insulin-like growth factor 1		The tumor cells are small and round, but they can sometimes be ovoid or spindle shaped. They have a scantycytoplasm with a high mitotic count and a hyperchromatic nuclei.
	Melanoma		painless	-	-	-	-	Rapid growth of an existing nevus Bleeding nevus Cutaneous nodules Hyper/hypopigmented skin lesion Melanonychia (brown/blue nail discoloration) Non-healing skin ulcer Painful skin lesion Pruritus Bone pain		Positive for CD133+ Positive for CD34+	An excisional biopsy (either elliptical, punch, or saucerization) of the thickest portion of the lesion with 1-3 mm margins.	Epidermal atrophy and flattening and prominent dermal invasion
	Lymphomatoid granulomatosis		painless	+	+	-	+	Cough Dyspnea Chest tightness Malaise Fatigue Headaches Seizures Hemiparesis Ataxia Macules Papules Plaques Subcutaneous nodules Larger ulcerated nodules	-	CBC Leukopenia Lymphopenia Low CD4 count Leukocytosis is rare Elevated Hematocrit	-	On chest CT scan, Halo sign is seen due to the angioinvasive nature of the disease
	Angioimmunoblastic lymphadenopathy		painless	+	+	+	+	Edema Chest pain Abdominal pain Bone pain Fatigue Pale skin color Dark urine Chronic pain and swelling of the joints	Immunophenotyping Positivity for CD2, CD3, CD4, CD5, CD10, CD20, and focal positivity for CXCL13 Negative for ALK1 and CD30 Fluorescence in situ hybridization (FISH)	Complete blood count (CBC) Anemia Eosinophilia	Lymph node or extranodal tissue biopsy is diagnostic of angioimmunoblastic T-cell lymphoma. Characteristic findings on gross pathology, aborization and proliferation of high endothelial venules On microscopic histopathological analysis, CD4+ T-cells, CD8+ T-cells, and polyclonal plasma cells.	Epstein–Barr virus (EBV) has been found in both reactive B-cells and the neoplastic T-cells. Trisomy 3, trisomy 5, and +X are the most frequent chromosomal abnormalities found in cases.
NEOPLASIA	Giant lymph node hyperplasia (Castleman disease)		painless	+	+	-	-	Anemia Loss of appetite Cough Chest discomfort Fatigue Weakness	-	Complete blood count and differential count - low white blood cell counts, which may to be due to the overproduction of interleukin 6. Erythrocyte sedimentation rate - elevated in 80% cases.	-	Hypersecretion of the cytokine IL-6.